DATASHEET CD4047BMS. Features. Description. Monostable Multivibrator Features. Astable Multivibrator Features. Pinout.

Transcription

1 CD7BMS CMOS Low-Power Moostable/Astable Multivibrator OBSOLETE PRODUCT NO RECOMMENDED REPLACEMENT cotact our Techical Suort Ceter at 1--INTERSIL or DATASHEET FN3313 Rev. Features High Voltage Tye (V Ratig) Low Power Cosumtio: Secial CMOS Oscillator Cofiguratio Moostable (Oe-Shot) or Astable (Free-Ruig) Oeratio True ad Comlemeted Buffered Oututs Oly Oe Exteral R ad C Required Buffered Iuts 1% Tested for uiescet Curret at V Stadardized, Symmetrical Outut Characteristics 5V, 1V ad 15V Parametric Ratigs Meets All Requiremets of JEDEC Tetative Stadard No. 13B, Stadard Secificatios for Descritio of B Series CMOS Devices Moostable Multivibrator Features Positive or Negative Edge Trigger Outut Pulse Width Ideedet of Trigger Pulse Duratio Retriggerable Otio for Pulse Width Exasio Iteral Power-O Reset Circuit Log Pulse Widths Possible Usig Small RC Comoets by Meas of Exteral Couter Provisio Fast Recovery Time Essetially Ideedet of Pulse Width Pulse-Width Accuracy Maitaied at Duty Cycles Aroachig 1% Astable Multivibrator Features Free-Ruig or Gatable Oeratig Modes 5% Duty Cycle Oscillator Outut Available Good Astable Frequecy Stability: Frequecy Deviatio: - = % +.3%/ o C at 1kHz - =.5% +.15%/ o C at 1kHz (Circuits Trimmed to Frequecy VDD = 1V 1% Alicatios Digital equimet where low ower dissiatio ad/or high oise immuity are rimary desig requiremets Eveloe Detectio Frequecy Discrimiators Frequecy Multilicatio Timig Circuits Frequecy Divisio Time Delay Alicatios Descritio CD7BMS cosists of a gatable astable multivibrator with logic techiques icororated to ermit ositive or egative edge triggered moostable multivibrator actio with retriggerig ad exteral coutig otios. Iuts iclude +TRIGGER, -TRIGGER, ASTABLE, ASTABLE, RETRIGGER, ad EXTERNAL RESET. Buffered oututs are,, ad OSCILLATOR. I all modes of oeratio, a exteral caacitor must be coected betwee C-Timig ad RC-Commo termials, ad a exteral resistor must be coected betwee the R-Timig ad RC- Commo termials. Astable oeratio is eabled by a high level o the ASTABLE iut or a low level o the ASTABLE iut, or both. The eriod of the square wave at the ad Oututs i this mode of oeratio is a fuctio of the exteral comoets emloyed. True iut ulses o the ASTABLE iut or Comlemet ulses o the ASTABLE iut allow the circuit to be used as a gatable multivibrator. The OSCILLATOR outut eriod will be half of the termial outut i the astable mode. However, a 5% duty cycle is ot guarateed at this outut. The CD7BMS triggers i the moostable mode whe a ositive goig edge occurs o the +TRIGGER iut while the -TRIGGER is held low. Iut ulses may be of ay duratio relative to the outut ulse. If retrigger caability is desired, the RETRIGGER iut is ulsed. The retriggerable mode of oeratio is limited to ositive goig edge. The CD7BMS will retrigger as log as the RETRIGGER iut is high, with or without trasitios (See Figure 31) A exteral coutdow otio ca be imlemeted by coulig to a exteral N couter ad resettig the couter with trigger ulse. The couter outut ulse is fed back to the ASTABLE iut ad has a duratio equal to N times the eriod of the multivibrator. A high level o the EXTERNAL RESET iut assures o outut ulse durig a ON ower coditio. This iut ca also be activated to termiate the outut ulse at ay time. For moostable oeratio, wheever VDD is alied, a iteral ower o reset circuit will clock the outut low withi oe outut eriod (tm). The CD7BMS is sulied i these 1-lead outlie ackages: Braze Seal DIP H Frit Seal DIP H1B Ceramic Flatack H3W Piout C 1 R R-C COMMON 3 ASTABLE ASTABLE 5 -TRIGGER CD7BMS TOP VIEW 1 VDD 13 OSC OUT 1 RETRIGGER EXT. RESET VSS 7 +TRIGGER FN3313 Rev. Page 1 of 15

2 CD7BMS Absolute Maximum Ratigs DC Suly Voltage Rage, (VDD) V to +V (Voltage Refereced to VSS Termials) Iut Voltage Rage, All Iuts V to VDD +.5V DC Iut Curret, Ay Oe Iut 1mA Oeratig Temerature Rage o C to +15 o C Package Tyes D, F, K, H Storage Temerature Rage (TSTG) o C to +15 o C Lead Temerature (Durig Solderig) o C At Distace 1/1 1/3 Ich (1.59mm.79mm) from case for 1s Maximum Reliability Iformatio Thermal Resistace ja jc Ceramic DIP ad FRIT Package..... o C/W o C/W Flatack Package o C/W o C/W Maximum Package Power Dissiatio (PD) at +15 o C For TA = -55 o C to +1 o C (Package Tye D, F, K) mW For TA = +1 o C to +15 o C (Package Tye D, F, K)..... Derate Liearity at 1mW/ o C to mw Device Dissiatio er Outut Trasistor mW For TA = Full Package Temerature Rage (All Package Tyes) Juctio Temerature o C TABLE 1. DC ELECTRICAL PERFORMANCE CHARACTERISTICS GROUP A LIMITS PARAMETER SYMBOL CONDITIONS (NOTE 1) SUBGROUPS TEMPERATURE MIN MAX UNITS Suly Curret IDD VDD = V, VIN = VDD or GND 1 +5 o C - A +15 o C - A VDD = 1V, VIN = VDD or GND 3-55 o C - A Iut Leakage Curret IIL VIN = VDD or GND VDD = 1 +5 o C -1 - A +15 o C -1 - A VDD = 1V 3-55 o C -1 - A Iut Leakage Curret IIH VIN = VDD or GND VDD = 1 +5 o C - 1 A +15 o C - 1 A VDD = 1V 3-55 o C - 1 A Iut Leakage Curet IIL VDD = V, VIN = 11V or GND 1 +5 o C -3 - A (Pi 3) +15 o C -1 - A Iut Leakage Curret IIH VDD = V, VIN = 13V or GND 1 +5 o C - 3 A (Pi 3) +15 o C - 1 A Outut Voltage VOL15 VDD = 15V, No Load 1,, 3 +5 o C, +15 o C, -55 o C - 5 mv Outut Voltage VOH15 VDD = 15V, No Load (Note 3) 1,, 3 +5 o C, +15 o C, -55 o C V Outut Curret (Sik),, OSC Out IOL5 VDD = 5V, VOUT =.V 1 +5 o C.53 - ma Outut Curret (Sik),, OSC Out Outut Curret (Sik),, OSC Out Outut Curret (Source),, OSC Out Outut Curret (Source),, OSC Out Outut Curret (Source),, OSC Out Outut Curret (Source),, OSC Out IOL1 VDD = 1V, VOUT =.5V 1 +5 o C 1. - ma IOL15 VDD = 15V, VOUT = 1.5V 1 +5 o C ma IOH5A VDD = 5V, VOUT =.V 1 +5 o C ma IOH5B VDD = 5V, VOUT =.5V 1 +5 o C ma IOH1 VDD = 1V, VOUT = 9.5V 1 +5 o C ma IOH15 VDD = 15V, VOUT = 13.5V 1 +5 o C ma Outut Curret (Sik) IOL5RC VDD = 5V, VOUT =.V 1 +5 o C.7 - ma Outut Curret (Sik) IOL1RC VDD = 1V, VOUT =.5V 1 +5 o C. - ma Outut Curret (Sik) IOL15RC VDD = 15V, VOUT = 1.5V 1 +5 o C 5. - ma Outut Curret (Source) IOH5RC VDD = 5V, VOUT =.V 1 +5 o C ma Outut Curret (Source) IOH1RC VDD = 1V, VOUT = 9.5V 1 +5 o C - ma Outut Curret (Source) IOH15RC VDD = 15V, VOUT = 13.5V 1 +5 o C ma FN3313 Rev. Page of 15

3 CD7BMS N Threshold Voltage VNTH VDD = 1V, ISS = -1 A 1 +5 o C. -.7 V P Threshold Voltage VPTH VSS = V, IDD = 1 A 1 +5 o C.7. V Fuctioal F VDD =.V, VIN = VDD or GND 7 +5 o C VOH > VOL < V VDD = V, VIN = VDD or GND 7 +5 o C VDD/ VDD/ VDD = 1V, VIN = VDD or GND A +15 o C VDD = 3V, VIN = VDD or GND B -55 o C Iut Voltage Low (Note ) VIL VDD = 5V, VOH >.5V, VOL <.5V 1,, 3 +5 o C, +15 o C, -55 o C V Iut Voltage High (Note ) Iut Voltage Low (Note ) Iut Voltage High (Note ) VIH VDD = 5V, VOH >.5V, VOL <.5V 1,, 3 +5 o C, +15 o C, -55 o C V VIL VIH VDD = 15V, VOH > 13.5V, VOL < 1.5V VDD = 15V, VOH > 13.5V, VOL < 1.5V NOTES: 1. All voltages refereced to device GND, 1% testig beig imlemeted. Go/No Go test with limits alied to iuts. 3. For accuracy, voltage is measured differetially to VDD. Limit is.5v max.. PARAMETER Astable, Astable to OSC Trigger to, (Note ) Astable or Astable to, (Note ) Retrigger to, (Note ) Reset to, Trasitio Time TABLE 1. DC ELECTRICAL PERFORMANCE CHARACTERISTICS (Cotiued) PARAMETER SYMBOL CONDITIONS (NOTE 1) SYMBOL TABLE. AC ELECTRICAL PERFORMANCE CHARACTERISTICS (NOTES 1, ) CONDITIONS 1,, 3 +5 o C, +15 o C, -55 o C - V 1,, 3 +5 o C, +15 o C, -55 o C 11 - V GROUP A SUBGROUPS TEMPERATURE MIN LIMITS TPLH1 VDD = 5V, VIN = VDD or GND 9 +5 o C - s 1, o C, -55 o C - 5 s TPHL3 TPLH3 TPLH TPLH TPHL TPLH TPLH5 TPLH5 GROUP A SUBGROUPS TEMPERATURE MAX UNITS VDD = 5V, VIN = VDD or GND 9 +5 o C - 1 s 1, o C, -55 o C s VDD = 5V, VIN = VDD or GND 9 +5 o C - 7 s 1, o C, -55 o C - 95 s VDD = 5V, VIN = VDD or GND 9 +5 o C - s 1, o C, -55 o C - 1 s VDD = 5V, VIN = VDD or GND 9 +5 o C - 5 s 1, o C, -55 o C - 75 s TTHL VDD = 5V, VIN = VDD or GND 9 +5 o C - s TTLH 1, o C, -55 o C - 7 s NOTES: 1. VDD = 5V, = 5F, RL = K; iut TR, TF < s o C ad +15 o C limits guarateed, 1% testig beig imlemeted. MIN LIMITS MAX UNITS FN3313 Rev. Page 3 of 15

4 CD7BMS TABLE 3. ELECTRICAL PERFORMANCE CHARACTERISTICS LIMITS PARAMETER SYMBOL CONDITIONS NOTES TEMPERATURE MIN MAX UNITS Suly Curret IDD VDD = 5V, VIN = VDD or GND 1, -55 o C, +5 o C - 1 A +15 o C - 3 A VDD = 1V, VIN = VDD or GND 1, -55 o C, +5 o C - A +15 o C - A VDD = 15V, VIN = VDD or GND 1, -55 o C, +5 o C - A +15 o C - 1 A Outut Voltage VOL VDD = 5V, No Load 1, +5 o C, +15 o C, mv 55 o C Outut Voltage VOL VDD = 1V, No Load 1, +5 o C, +15 o C, - 55 o C Outut Voltage VOH VDD = 5V, No Load 1, +5 o C, +15 o C, - 55 o C Outut Voltage VOH VDD = 1V, No Load 1, +5 o C, +15 o C, - 55 o C - 5 mv.95 - V V Outut Curret (Sik) IOL5 VDD = 5V, VOUT =.V 1, +15 o C.3 - ma -55 o C. - ma Outut Curret (Sik) IOL1 VDD = 1V, VOUT =.5V 1, +15 o C.9 - ma -55 o C 1. - ma Outut Curret (Sik) IOL15 VDD = 15V, VOUT = 1.5V 1, +15 o C. - ma -55 o C. - ma Outut Curret (Source) IOH5A VDD = 5V, VOUT =.V 1, +15 o C ma -55 o C - -. ma Outut Curret (Source) IOH5B VDD = 5V, VOUT =.5V 1, +15 o C ma -55 o C -. ma Outut Curret (Source) IOH1 VDD = 1V, VOUT = 9.5V 1, +15 o C ma -55 o C ma Outut Curret (Source) IOH15 VDD =15V, VOUT = 13.5V 1, +15 o C -. ma -55 o C - -. ma Iut Voltage Low VIL VDD = 1V, VOH > 9V, VOL < 1V 1, +5 o C, +15 o C, - 55 o C - 3 V Iut Voltage High VIH VDD = 1V, VOH > 9V, VOL < 1V 1, +5 o C, +15 o C, - 55 o C Astable, Astable to OSC Astable or Astable to, Trigger to, Retrigger to, Reset to, Trasitio Time +7 - V TPLH1 VDD = 1V 1,, 3 +5 o C - s VDD = 15V 1,, 3 +5 o C - 1 s TPLH TPHL TPHL3 TPLH3 TPHL TPLH TPLH5 TPLH5 TTHL TTLH VDD = 1V 1,, 3 +5 o C - 35 s VDD = 15V 1,, 3 +5 o C - 5 s VDD = 1V 1,, 3 +5 o C - 5 s VDD = 15V 1,, 3 +5 o C - 3 s VDD = 1V 1,, 3 +5 o C - 3 s VDD = 15V 1,, 3 +5 o C - s VDD = 1V 1,, 3 +5 o C - s VDD = 15V 1,, 3 +5 o C - 1 s VDD = 1V 1,, 3 +5 o C - 1 s VDD = 15V 1,, 3 +5 o C - s FN3313 Rev. Page of 15

5 CD7BMS or Deviatio from 5% Duty Factor Miimum Pulse Width + Trigger - Trigger Miimum Pulse Width Reset TABLE 3. ELECTRICAL PERFORMANCE CHARACTERISTICS (Cotiued) PARAMETER SYMBOL CONDITIONS NOTES TEMPERATURE D VDD = 5V 1,, 3 +5 o C - 1 % VDD = 1V 1,, 3 +5 o C - 1 % VDD = 15V 1,, 3 +5 o C -.5 % TW VDD = 5V 1,, 3 +5 o C - s VDD = 1V 1,, 3 +5 o C - 1 s VDD = 15V 1,, 3 +5 o C - 1 s TW VDD = 5V 1,, 3 +5 o C - s VDD = 1V 1,, 3 +5 o C - 1 s VDD = 15V 1,, 3 +5 o C - s Miimum Retrigger Pulse TW VDD = 5V 1,, 3 +5 o C - s Width VDD = 1V 1,, 3 +5 o C - 3 s VDD = 15V 1,, 3 +5 o C - 15 s Iut Caacitace CIN Ay Iut 1, +5 o C F NOTES: 1. All voltages refereced to device GND.. The arameters listed o Table 3 are cotrolled via desig or rocess ad are ot directly tested. These arameters are characterized o iitial desig release ad uo desig chages which would affect these characteristics. 3. = 5F, RL = K, Iut TR, TF < s. MIN LIMITS MAX UNITS TABLE. POST IRRADIATION ELECTRICAL PERFORMANCE CHARACTERISTICS LIMITS PARAMETER SYMBOL CONDITIONS NOTES TEMPERATURE MIN MAX UNITS Suly Curret IDD VDD = V, VIN = VDD or GND 1, +5 o C A N Threshold Voltage VNTH VDD = 1V, ISS = -1 A 1, +5 o C. -. V N Threshold Voltage VTN VDD = 1V, ISS = -1 A 1, +5 o C - 1 V Delta P Threshold Voltage VTP VSS = V, IDD = 1 A 1, +5 o C.. V P Threshold Voltage VTP VSS = V, IDD = 1 A 1, +5 o C - 1 V Delta Fuctioal F VDD = 1V, VIN = VDD or GND VDD = 3V, VIN = VDD or GND 1 +5 o C VOH > VDD/ Time TPHL TPLH NOTES: 1. All voltages refereced to device GND.. = 5F, RL = K, Iut TR, TF < s. VOL < VDD/ VDD = 5V 1,, 3, +5 o C x +5 o C Limit 3. See Table for +5 o C limit.. Read ad Record V s TABLE 5. BURN-IN AND LIFE TEST DELTA PARAMETERS +5 O C PARAMETER SYMBOL DELTA LIMIT Suly Curret - MSI-1 IDD. A Outut Curret (Sik) IOL5 % x Pre-Test Readig Outut Curret (Source) IOH5A % x Pre-Test Readig FN3313 Rev. Page 5 of 15

6 CD7BMS TABLE. APPLICABLE SUBGROUPS CONFORMANCE GROUP MIL-STD-3 METHOD GROUP A SUBGROUPS READ AND RECORD Iitial Test (Pre Bur-I) 1% 5 1, 7, 9 IDD, IOL5, IOH5A Iterim Test 1 (Post Bur-I) 1% 5 1, 7, 9 IDD, IOL5, IOH5A Iterim Test (Post Bur-I) 1% 5 1, 7, 9 IDD, IOL5, IOH5A PDA (Note 1) 1% 5 1, 7, 9, Deltas Iterim Test 3 (Post Bur-I) 1% 5 1, 7, 9 IDD, IOL5, IOH5A PDA (Note 1) 1% 5 1, 7, 9, Deltas Fial Test 1% 5, 3, A, B, 1, 11 Grou A Samle 55 1,, 3, 7, A, B, 9, 1, 11 Grou B Subgrou B-5 Samle 55 1,, 3, 7, A, B, 9, 1, 11, Deltas Subgrous 1,, 3, 9, 1, 11 Subgrou B- Samle 55 1, 7, 9 Grou D Samle 55 1,, 3, A, B, 9 Subgrous 1, 3 NOTE: 1. 5% Parameteric, 3% Fuctioal; Cumulative for Static 1 ad. TABLE 7. TOTAL DOSE IRRADIATION CONFORMANCE GROUPS MIL-STD-3 METHOD TEST READ AND RECORD PRE-IRRAD POST-IRRAD PRE-IRRAD POST-IRRAD Grou E Subgrou 55 1, 7, 9 Table 1, 9 Table TABLE. BURN-IN AND IRRADIATION TEST CONNECTIONS OSCILLATOR FUNCTION OPEN GROUND VDD 9V -.5V 5kHz 5kHz Static Bur-I 1 1,, 1, 11, , 1 1 Note 1 Static Bur-I 1,, 1, 11, ,, 9, 1, 1 Note 1 Dyamic Bur- - 7, 9, 1, 5, 1 1,, 1, 11, 13, 3 I Note 1 Irradiatio 1,, 1, 11, ,, 9, 1, 1 Note NOTE: 1. Each i excet VDD ad GND will have a series resistor of 1K 5%, VDD = 1V.5V. Each i excet VDD ad GND will have a series resistor of 7K 5%; Grou E, Subgrou, samle size is dice/wafer, failures, VDD = 1V.5V FN3313 Rev. Page of 15

7 CD7BMS TABLE 9. FUNCTIONAL TERMINAL CONNECTIONS I all cases Exteral resistor betwee termials ad 3 (Note 1) Exteral caacitor betwee termials 1 ad 3 (Note 1) TERMINAL CONNECTIONS OUTPUT PULSE OUTPUT PERIOD OR PULSE FUNCTION TO VDD TO VSS INPUT TO FROM WIDTH ASTABLE MULTIVIBRATOR Free Ruig, 5,, 1 7,, 9, 1-1, 11, 13 T A (1, 11) =. RC True Gatig,, 1 7,, 9, 1 5 1, 11, 13 T A (13) =. RC (Note ) Comlemet Gatig, 1 5, 7,, 9, 1 1, 11, 13 MONOSTABLE MULTIVIBRATOR Positive Edge Trigger, 1 5,, 7, 9, 1 1, 11 tm (1, 11) =. RC Negative Edge Trigger,, 1 5, 7, 9, 1 1, 11 Retriggerable, 1 5,, 7, 9, 1 1, 11 Exteral Coutdow (Note 3) 1 5,, 7,, 9, 1-1, 11 NOTES: 1. See text.. First ositive 1 / cycle ulse width =. RC. See ote follow Moostable Mode Desig Iformatio. 3. Iut Pulse to Reset of Exteral Coutig Chi Exteral Coutig Chi Outut to Termial. Logic Diagrams C-TIMING C R 3 1 R-TIMING 5 ASTABLE ASTABLE RC COMMON ASTABLE GATE CONTROL LOW POWER ASTABLE MULTIVIBRATOR OSCILLATOR OUT FREUENCY DIVIDER ( ) TRIGGER +TRIGGER MONOSTABLE CONTROL 1 9 RETRIGGER EXTERNAL RESET RETRIGGER CONTROL FIGURE 1. CD7BMS LOGIC BLOCK DIAGRAM FN3313 Rev. Page 7 of 15

8 CD7BMS Logic Diagrams (Cotiued) ASTABLE ASTABLE * 5 * RETRIGGER * 1 VDD ** 3 RC COMMON CTC 1 RTC +TRIGGER -TRIGGER * * VDD FF1 D R1 R OSC OUT 13 VDD VSS 1 7 VSS S D FF R D FF3 R1 R S D FF R 1 11 EXTERNAL RESET * 9 VDD * INPUTS PROTECTED BY CMOS PROTECTION NETWORK VDD CAUTION: Termial 3 is more sesitive to static electrical discharge. Extra hadlig recautios are recommeded. ** SPECIAL RC COMMON PROTECTION NETWORK VSS VSS FIGURE. CD7BMS LOGIC DIAGRAM R R1 D R1 R FF1, FF3 D R1 R (a) S D D S S R FF, FF R R (b) FIGURE 3. DETAIL LOGIC DIAGRAM FOR FLIP-FLOPS FF1 AND FF3 (a) AND FOR FLIP-FLOPS FF AND FF (b) FN3313 Rev. Page of 15

9 CD7BMS Tyical Performace Characteristics OUTPUT LOW (SINK) CURRENT (IOL) (ma) AMBIENT TEMPERATURE (T A ) = +5 o C GATE-TO-SOURCE VOLTAGE (VGS) = 15V 1V 5V OUTPUT LOW (SINK) CURRENT (IOL) (ma) AMBIENT TEMPERATURE (T A ) = +5 o C GATE-TO-SOURCE VOLTAGE (VGS) = 15V 1V 5V DRAIN-TO-SOURCE VOLTAGE (VDS) (V) FIGURE. TYPICAL OUTPUT LOW (SINK) CURRENT CHARACTERISTICS DRAIN-TO-SOURCE VOLTAGE (VDS) (V) FIGURE 5. MINIMUM OUTPUT LOW (SINK) CURRENT CHARACTERISTICS DRAIN-TO-SOURCE VOLTAGE (VDS) (V) AMBIENT TEMPERATURE (T A ) = +5 o C GATE-TO-SOURCE VOLTAGE (VGS) = -5V -1V -15V OUTPUT HIGH (SOURCE) CURRENT (IOH) (ma) DRAIN-TO-SOURCE VOLTAGE (VDS) (V) AMBIENT TEMPERATURE (T A ) = +5 o C GATE-TO-SOURCE VOLTAGE (VGS) = -5V -1V -15V OUTPUT HIGH (SOURCE) CURRENT (IOH) (ma) FIGURE. TYP. OUTPUT HIGH (SOURCE) CURRENT CHARACTERISTICS PROPAGATION DELAY TIME (t PHL, t PLH ) (s) 3 1 1V 15V AMBIENT TEMPERATURE (T A ) = +5 o C 1 LOAD CAPACITANCE () (F) FIGURE. TYP. PROPAGATION DELAY TIME AS A FUNCTION OF LOAD CAPACITANCE (ASTABLE, ASTABLE TO, ) FIGURE 7. MINIMUM OUTPUT HIGH (SOURCE) CURRENT CHAR- ACTERISTICS PROPAGATION DELAY TIME (t PHL, t PLH ) (s) AMBIENT TEMPERATURE (T A ) = +5 o C 1 LOAD CAPACITANCE () (F) FIGURE 9. TYP. PROPAGATION DELAY TIME AS A FUNCTION OF LOAD CAPACITANCE (+ OR - TRIGGER TO, ) 1V 15V FN3313 Rev. Page 9 of 15

10 CD7BMS Tyical Performace Characteristics (Cotiued) TRANSITION TIME (fthl, ftlh) (s) AMBIENT TEMPERATURE (T A ) = +5 o C 1V 15V AMBIENT TEMPERATURE (T A ) = +5 o C CX = 1 F 1M RX = 1M AND 1k 1M AND 1k 1k 1M 1 LOAD CAPACITANCE () (F) FIGURE 1. TYP. TRANSITION TIME AS A FUNCTION OF LOAD CAPACITANCE AMBIENT TEMPERATURE (T A ) = +5 o C CX =.1 F 1k RX = 1M 1M 1k 1M 1k 1M 1k SUPPLY VOLTAGE (VDD) (V) FIGURE 1. TYP. ASTABLE OSCILLATOR OR, PERIOD ACCURACY vs SUPPLY VOLTAGE 1 CX = 1 F RX = 1M 1V, 15V 5V -1 1V, 15V 1k SUPPLY VOLTAGE (VDD) (V) FIGURE 11. TYP. ASTABLE OSCILLATOR OR, PERIOD ACCURACY vs SUPPLY VOLTAGE AMBIENT TEMPERATURE (T A ) = +5 o C CX = 1F RX = 1M AND 1k 1k 1k 1M AND 1k 1M -3 1k SUPPLY VOLTAGE (VDD) (V) FIGURE 13. TYP. ASTABLE OSCILLATOR OR, PERIOD ACCURACY vs SUPPLY VOLTAGE 1-1 CX =.1 F RX = 1M 5V 15V 15V 1V V FIGURE 1. TYP. ASTABLE OSCILLATOR OR, PERIOD ACCURACY vs AMBIENT TEMPERATURE (ULTRA LOW FRE.) FIGURE 15. TYP. ASTABLE OSCILLATOR OR, PERIOD ACCURACY vs AMBIENT TEMPERATURE (LOW FRE.) FN3313 Rev. Page 1 of 15

11 CD7BMS Tyical Performace Characteristics (Cotiued) CX =.1 F RX = 1k, 1V 1 1 CX = 1F RX = 1k 1-1 5V AND 1V 15V 15V 1V AND 15V 1V, 15V 5V FIGURE 1. TYP. ASTABLE OSCILLATOR OR, PERIOD ACCURACY vs AMBIENT TEMPERATURE (MEDIUM FRE.) FIGURE 17. TYP. ASTABLE OSCILLATOR OR, PERIOD ACCURACY vs AMBIENT TEMPERATURE (HIGH FRE.) 1 RX = 1k.1 F,.1 F, 1 F.1 F 1F.1 F.1 F,.1 F, 1 F -1 CX = 1F FIGURE 1. TYPICAL ASTABLE OSCILLATOR OR, PERIOD ACCURACY vs AMBIENT TEMPERATURE OUTPUT PULSE-WIDTH VARIATION (%) AMBIENT TEMPERATURE (T A ) = +5 o C CX = 1 F 1k 1k RX = 1k, 1M, 1M 1k 1k, 1M AND 1M 1k SUPPLY VOLTAGE (VDD) (V) FIGURE 19. TYPICAL OUTPUT PULSE WIDTH VARIATIONS vs SUPPLY VOLTAGE OUTPUT PULSE-WIDTH VARIATION (%) - - AMBIENT TEMPERATURE (T A ) = +5 o C CX =.1 F 1M RX = 1k, 1k, 1M 1k, 1k, 1M AND 1M OUTPUT PULSE-WIDTH VARIATION (%) - - AMBIENT TEMPERATURE (T A ) = +5 o C CX = 1F RX = 1M AND 1 1k 1k SUPPLY VOLTAGE (VDD) (V) FIGURE. TYPICAL OUTPUT PULSE WIDTH VARIATIONS vs SUPPLY VOLTAGE SUPPLY VOLTAGE (VDD) (V) FIGURE 1. TYPICAL OUTPUT PULSE WIDTH VARIATIONS vs SUPPLY VOLTAGE FN3313 Rev. Page 11 of 15

12 CD7BMS Tyical Performace Characteristics (Cotiued) OUTPUT PULSE-WIDTH VARIATION (%) - - RX = 1k.1 F.1 F.1 F.1 F.1 F.1 F OUTPUT PULSE-WIDTH VARIATION (%) 1 RX = 1k SUPPLY VOLTAGE (VDD) = 1V OR 15V CX = 1F.1 F.1 F,.1 F F AND.1 F.1 F F FIGURE. TYPICAL OUTPUT PULSE WIDTH VARIATIONS vs AM- BIENT TEMPERATURE FIGURE 3. TYPICAL OUTPUT PULSE WIDTH VARIATIONS vs AM- BIENT TEMPERATURE OUTPUT PULSE-WIDTH VARIATION (%) k 1k 1M RX = 1M CX = 1F OR 1V 1M 1k 1k 1M OUTPUT PULSE-WIDTH VARIATION (%) M RX = 1M 1k CX = 1F SUPPLY VOLTAGE (VDD) = 15V 1k 1M 1k 1k 1M FIGURE. TYPICAL OUTPUT PULSE WIDTH VARIATIONS vs AM- BIENT TEMPERATURE POWER DISSIPATION (PD) ( W) ASTABLE MODE C =.1 F C =.1 F C =1F C =1F C =1F FIGURE 5. TYPICAL OUTPUT PULSE WIDTH VARIATIONS vs AM- BIENT TEMPERATURE POWER DISSIPATION (PD) ( W) ASTABLE MODE SUPPLY VOLTAGE (VDD) = 1V C =.1 F C =.1 F C =1F C =1F C =1F OR FREUENCY (F) (Hz) FIGURE. TYPICAL POWER DISSIPATION vs OUTPUT FREUENCY (VDD = 5V) OR FREUENCY (F) (Hz) FIGURE 7. TYPICAL POWER DISSIPATION vs OUTPUT FREUENCY (VDD = 1V) FN3313 Rev. Page 1 of 15

13 CD7BMS Tyical Performace Characteristics (Cotiued) POWER DISSIPATION (PD) ( W) ASTABLE MODE SUPPLY VOLTAGE (VDD) = 15V C =.1 F C =.1 F C =1F C =1F C =1F OR FREUENCY (F) (Hz) FIGURE. TYPICAL POWER DISSIPATION vs OUTPUT FREUENCY (VDD = 15V) Astable Mode Desig Iformatio Uit-to-Uit Trasfer Voltage Variatios The followig aalysis resets variatios from uit to uit as a fuctio of trasfer voltage (VTR) shift (33%-7% VDD) for free ruig (astable) oeratio. TERMINAL 13 TERMINAL 1 t1 t t1 t t A / t A / FIGURE 9. ASTABLE MODE WAVEFORMS t A Moostable Mode Desig Iformatio The followig aalysis resets variatios from uit to uit as a fuctio of trasfer voltage (VTR) shift (33% - 7% VDD) for oe shot (moostable) oeratio. TERMINAL TERMINAL 13 TERMINAL 1 t1 t t1 t tm tm FIGURE 3. MONOSTABLE WAVEFORMS t1 = -RC I VTR ; VDD + VTR tyically, t1 = 1.1RC t1 = -RC I VTR ; VDD tyically, t1 = 1.3RC t = -RC I VDD - VTR ; VDD - VTR tyically, t = 1.1RC t A = (t1 + t) (VTR)(VDD - VTR) =RC I (VDD + VTR)(VDD - VTR) Ty: Mi: Max: VTR =.5VDD VTR =.33VDD VTR =.7VDD t A =.RC t A =.RC t A =.RC thus if t A =.RC is used, the variatio will be +5%, -% due to variatios i trasfer voltage. Variatios Due to VDD ad Temerature Chages I additio to variatios from uit to uit, the astable eriod varies with VDD ad temerature, Tyical variatios are reseted i grahical form i Figures 11 to 1 with 1V as referece for voltage variatios curves ad +5 o C as referece for temerature variatios curves. tm = (t1 + t) (VTR)(VDD - VTR) tm = -RC I (VDD - VTR)(VDD) where tm = Moostable mode ulse width. Values for tm are as follows: Ty: Mi: Max: VTR =.5VDD VTR =.33VDD VTR =.7VDD tm =.RC tm =.71RC tm =.RC thus if tm =.RC is used, the variatio will be +9.3%, -% due to variatios i trasfer voltage. NOTES: 1. I the astable mode, the first ositive half cycle has a duratio of tm; succeedig duratios are t A /s.. I additio to variatios from uit to uit, the moostable ulse width varies with VDD ad temerature. These variatios are reseted i grahical form i Figures 19 to with 1V as referece for voltage variatio curves ad +5 o C as referece for temerature variatio curves. FN3313 Rev. Page 13 of 15

14 CD7BMS Retrigger Mode Oeratio The CD7BMS ca be used i the retrigger mode to exted the outut ulse duratio, or to comare the frequecy of a iut sigal with that of the iteral oscillator. I the retrigger mode the iut ulse is alied to termial 1, ad the outut is take from termial 1 or 11. As show i Figure 31 ormal moostable actio is obtaied whe oe retrigger ulse is alied. Exteded ulse duratio is obtaied whe more tha oe ulse is alied. For two iut ulses, tre = t1 + t1 + t. For more tha two ulses, the outut ulse width is a itegral umber of time eriods, with the first time eriod beig t1 + t, tyically,.rc, ad all subsequet time eriods beig t1 + t, tyically,.rc. Exteral Couter Otio Time tm ca be exteded by ay amout with the use of exteral coutig circuitry. Advatages iclude digitally cotrolled ulse duratio, small timig caacitors for log time eriods, ad extremely fast recovery time. A tyical imlemetatio is show i Figure 3. The ulse duratio at the outut is text = (N - 1) (t A ) + (tm + t A /) where text = ulse duratio of the circuitry, ad N is the umber of couts used. AST CD7BMS INPUT PULSE CD17BMS R 11 FIGURE 3. IMPLEMENTATION OF EXTERNAL COUNTER OPTION Timig Comoet Limitatios The caacitor used i the circuit should be o olarized ad have low leakage (i.e. the arallel resistace of the caacitor should be at least a order of magitude greater tha the exteral resistor used). There is o uer or lower limit for either R or C value to maitai oscillatio. 1 OPTIONAL BUFFER TEXT OUT However, i cosideratio of accuracy, C must be much larger tha the iheret stray caacitace i the system (uless this caacitace ca be measured ad take ito accout). R must be much larger tha the CMOS ON resistace i series with it, which tyically is hudreds of. I additio, with very large values of R, some short term istability with resect to time may be oted. The recommeded values for these comoets to maitai agreemet with reviously calculated formulas without trimmig should be: C 1F, u to ay ractical value, for astable modes; C 1F, u to ay ractical value for moostable modes. 1k R 1M Power Cosumtio I the stadby mode (Moostable or Astable), ower dissiatio will be a fuctio of leakage curret i the circuit, as show i the static electrical characteristics. For dyamic oeratio, the ower eeded to charge the exteral timig caacitor C is give by the followig formula: Astable Mode: Moostable Mode: P = CV f. (Outut at termial No. 13) P = CV f. (Outut at termial Nos. 1 ad 11) P = (Outut at termial Nos. 1 to 11) (.9CV ) (Duty Cycle) T The circuit is desiged so that most of the total ower is cosumed i the exteral comoets. I ractice, the lower the values of frequecy ad voltage used, the closer the actual ower dissiatio will be to the calculated value. Because the ower dissiatio does ot deed o R, a desig for miimum ower dissiatio would be a small value of C. The value of R would deed o the desired eriod (withi the limitatios discussed above). See Figures, 7, ad for tyical ower cosumtio i astable mode. +TRIGGER & RETRIGGER TERMINALS & 1 OSC OUTPUT TERMINAL 13 t1 t t1 t t1 t t1 t t1 t t1 t t1 t t1 t t1 t t1 t OUTPUT TERMINAL 1 tre tre tre tre FIGURE 31. RETRIGGER MODE WAVEFORMS FN3313 Rev. Page 1 of 15

15 CD7BMS Chi Dimesios ad Pad Layout Dimesios i arethesis are i millimeters ad are derived from the basic ich dimesios as idicated. Grid graduatios are i mils (1-3 ich). METALLIZATION: Thickess: 11kÅ 1kÅ, AL. PASSIVATION: 1.kÅ - 15.kÅ, Silae BOND PADS:. iches X. iches MIN DIE THICKNESS:.19 iches -.1 iches Coyright Itersil Americas LLC All Rights Reserved. All trademarks ad registered trademarks are the roerty of their resective owers. For additioal roducts, see Itersil roducts are maufactured, assembled ad tested utilizig ISO91 quality systems as oted i the quality certificatios foud at Itersil roducts are sold by descritio oly. Itersil may modify the circuit desig ad/or secificatios of roducts at ay time without otice, rovided that such modificatio does ot, i Itersil's sole judgmet, affect the form, fit or fuctio of the roduct. Accordigly, the reader is cautioed to verify that datasheets are curret before lacig orders. Iformatio furished by Itersil is believed to be accurate ad reliable. However, o resosibility is assumed by Itersil or its subsidiaries for its use; or for ay ifrigemets of atets or other rights of third arties which may result from its use. No licese is grated by imlicatio or otherwise uder ay atet or atet rights of Itersil or its subsidiaries. For iformatio regardig Itersil Cororatio ad its roducts, see FN3313 Rev. Page 15 of 15