SINGLE SUPPLY RS-232 STANDARD TRANSCEIVER

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Silvester Kelly
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1 SINGLE SUPPLY RS- STANDARD TRANSCEIVER DESCRIPTION is compatible with RS- standard, have dual transceiver. Each receiver converts TIA/EIA--E levels into TTL/CMOS levels. Each driver converts TTL/CMOS levels into TIA/EIA--E levels. The is characterized for operation from - C to 8 C for all packages. is purposed for application in high-performance information processing systems and control devices of wide application. PIN CONFIGURATION D or N Package C1 V C1- C GND T1OUT R1IN C- TOUT RIN R1OUT T1IN TIN ROUT FEATURES (Top View) Input voltage levels are compatible with standard СMOS levels Output voltage levels are compatible with TIA/EIA--E levels Supply voltage:.v Low input current:.1μa at ТA = C Output current: ma Latching current not less than ma at ТA = C The transmitter outputs and receiver inputs are protected to ±1kV Air ESD APPLICATION Battery-Powered RS Systems Terminals Modems Computers ORDERING INFORMATION Temperature Range Package Orderable Device Package Qty - C to 8 C SOP16L DIP16L Pb-Free D DR N Units/Tube Units/R&T Units/Tube 1

2 PIN DESCRIPTION No. Name Function 1 C1 External capacitance of positive voltage multiplier unit V C1- C C- TOUT RIN ROUT TIN T1IN R1OUT R1IN T1OUT GND Output of positive voltage of multiplier unit External capacitance of positive voltage multiplier unit External capacitance of negative voltage multiplier unit External capacitance of negative voltage multiplier unit Output of negative voltage of multiplier unit Output of transmitter data (levels RS ) Input of receiver data (levels RS ) Output of receiver data (levels TTL/CMOS) Input of transmitter data (levels TTL/CMOS) Input of transmitter data (levels TTL/CMOS) Output of receiver data (levels TTL/CMOS) Input of receiver data (levels RS ) Output of transmitter data (levels RS ) Ground Supply voltage TRUTH TABLE Inputs Outputs RIN,TIN H L ROUT,TOUT L H ABSOLUTE MAXIMUM RATINGS Parameter Value Unit Supply voltage Transmitter high output voltage V Transmitter low output voltage -. to to 1 -. to -1 V Transmitter input voltage VTIN -. to (V). Receiver input voltage VRIN - to Dissipated power DIP package SOP package PD 8 76 mw Output current of transmitter short circuit ISC Continuously Ambient temperature ТA - to 8 C

3 RECOMMENDED OPERATING CONDITIONS DC ELECTRICAL CHARACTERISTICS Parameter Consumption current static Receiver Hysteresis voltage On (operation) voltage ICC Test Conditions =.V, VIL = V Parameter Min Max Unit Supply voltage.. Transmitter output high voltage V Transmitter output low voltage Transmitter input voltage Receiver input voltage Transmitter short circuit output current - C to C 8 C Min Max Min Max Unit VH =.V VON VO.1V, IOL ma 1. 1.*.. Off (dropout) VO -.1 V, VOFF.6.7 voltage IOH - ma V Output low voltage VOL IOL =.mа, VСС =.V, VIH =.V.. Output high voltage VOH IOH = -1.mА, VСС =.V, VIL =.8V.. Input resistance RI =.V kω Transmitter VСС =.V, VIH =.V, Output low voltage VOL RL =.kω VСС =.V, VIL =.8V, Output high voltage.. VOH RL =.kω V Input low current IIL VСС =.V, VIL = V μa Input high current IIH VСС =.V, VIH = VСС μa Speed of output VСС =.V,СL = to 1pF SR. front change RL =. to 7.kΩ.7 7 V/μs VСС Output resistance = V = = V, RО VO = ±V Ω Short circuit VI = VСС VСС =.V - -6 ISC output current VO = V VI = V 6 ma Speed of VСС =.V, СL = 1pF information ST RL =.kω, tw = 7μs (for 1 1 kbits/s transmission extreme tw = 8ms) VTIN VRIN ISC - - ±6 V ma ma

4 AC ELECTRICAL CHARACTERISTICS Parameter Test Conditions C - C to 8 C Min Max Min Max Unit Signal propagation delay time when switching on (off) Signal propagation delay time when switching on (off) tphlr (tplhr) tphlt (tplht) VСС =.V, СL = 1pF, VIL = V, VIH =.V, tlh = thl 1ns VСС =.V, СL = 1pF, VIL = V, VIH =.V, tlh = thl 1 ns μs. 6. μs CAPACITANCE Parameter Test Conditions Value Unit Input capacitance Dynamic capacitance TIMING DIAGRAM CIN 9. CPD Vcc=.V pf 9 pf V Rin 1.V 1.V V VOH.. Rout VOL tphlr tplhr Figure 1. Waveforms for tphlr and tplhr Measurement V Tin 1.V 1.V V VOH Tout 1.V 1.V VOL tphlt tplht Figure. Waveforms for tphlt and tplht Measurement

5 TYPICAL PERFORMANCE CHARACTERISTICS (, unless otherwise noted) VO(V) IOL(mA) =V 1 =V VI(V) 1 VO(V) Figure. Driver Voltage Transfer Characteristics for Trasmitter Inputs Figure.Output Current vs. Output Low Voltage VO(V) IOH(mA) =V =.V VI(V) Figure. Driver Voltage Transfer Characteristics for Receiver Inputs VOH(V) Figure 6.Output Current vs. Output High Voltage IOL(mA) IOH(mA) =.V =V 1 VO(V) VOH(V) Figure 7. Output Current vs. Output Low Voltage Figure 8.Output Current vs. Output High Voltage

6 TYPICAL PERFORMANCE CHARACTERISTICS(CONTINUED) VO(mV) - - =V VI(V) Figure 9. Receiver Input Resistance TYPICAL APPLICATION.V.1µF.1µF.1µF.1µF 1 C1 C1- C C- 16 V 6.1µF T1IN 11 1 T1OUT TTL / CMOS Input TIN 1 7 RS- Output TOUT R1OUT 1 1 R1IN TTL / CMOS Output ROUT 9 k 8 RS- Input RIN k 1 Figure 1. Application circuit 6

7 B θ C PHYSICAL DIMENSIONS SOP16L A1 A A D D1 B B1 D θ1 A θ R θ C1 C R1 C C A A1 A A B B1 B C C1 C C Dimension(mm) Min Max (TYP).(TYP) (TYP) C D D1 D R1 R θ1 θ θ θ Dimension(mm) Min Max.(TYP) 1.(TYP) (TYP).1(TYP) 8 (TYP) 8 (TYP) (TYP) 1 (TYP) 7

8 C C1 C DIP16L D A θ1 B θ D1 D C C A A1 A A A A A1 A A A A B C1 C Dimension(mm) Dimension(mm) Min Max Min Max C..6 1.(TYP) C.8..6(TYP) C.8(TYP).(TYP) D (TYP) D1...99(TYP) D 7.6 (TYP) θ1 8º (TYP)..7 θ º (TYP).1(TYP) 8

MAX232, MAX232I DUAL EIA-232 DRIVER/RECEIVER

MAX232, MAX232I DUAL EIA-232 DRIVER/RECEIVER Operates With Single 5-V Power Supply LinBiCMOS Process Technology Two Drivers and Two Receivers ± 30-V Input Levels Low Supply Current...8 ma Typical Meets or Exceeds TIA/EIA-232-F and ITU Recommendation