NTE40192B & NTE40193B Integrated Circuit CMOS, Presettable Up/Down Counters (Dual Clock with Reset)

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1 NTE40192B & NTE40193B Integrated Circuit CMOS, Presettable Up/Down Counters (Dual Clock with Reset) Description: The NTE40192B (BCD Type), and NTE40193B (Binary Type) are presettable up/down counters in a 16Lead DIP type package coisting of 4 synchronously clocked, gated D type flipflops connected as a counter. The inputs coist of 4 individual jam lines, a PRESET ENABLE control, individual CLOCK UP and CLOCK DOWN signals and a master RESET. Four buffered Q signal outputs as well as CARRY an BORROW outputs for multiplestage counting schemes a provided. The counter is cleared so that all outputs are in a low state by a high on the RESET line. A RESET is accomplished asynchronously with the clock. Each output is individually programmable asynchronously with the clock to the level on the corresponding jam input when the PRESET ENABLE control is low. The counter counts up one count on the positive clock edge of the CLOCK UP signal provided the CLOCK DOWN line is high. The counter counts down one count on the positive clock edge of the CLOCK DOWN signal provided the CLOCK UP line is high. The CARRY and BORROW signals are high when the counter is counting up or down. The CARRY signal goes low onehalf clock cycle after the counter reaches its maximum count in the countup mode. The BORROW signal goes low onehalf clock cycle after the counter reaches its minimum count in the count down mode. Cascading of multiple packages is easily accomplished without the need for additional external circuitry by tying the BORROW and CARRY outputs to the CLOCK DOWN and CLOCK UP inputs, respectively, of the succeeding counter package. Features: Individual Clock Lines for Counting Up or Counting Down Synchronous HighSpeed Carry and Borrow Propagation Delays for Cascading Asynchronous Reset and Preset Capability MediumSpeed Operation: f CL = 8Mhz (TYP0 at V 5V, V, and V Parametric Ratings Standardized, Symmetrical Output Characteristics imum Input Current of 1μA at 18V over Full Package Temperature Range; 0nA at 18V and +25 C Noise Margin (over Full Package Temperature Range): 1V at = 5V, 2V at = V, 2.5V at = V Applicatio: Up/Down Difference Counting Multistage Ripple Counting Synchronous Frequency Dividers A/D and D/A Conversion Programmable Binary or BCD Counting

2 Absolute imum Ratings: DC Supply Voltage Range (Voltages Referenced to V SS ), to +20V Input Voltage Range (All Inputs) to +0.5V DC Input Current (Any One Input)... ±ma Power Dissipation (Per Package), P D For T A = 55 to +0 C mW For T A = +0 to +125 C... Derate Linearly at 12mW/ C to 200mW Device Dissipation (Per Output Traistor) For T A = Full Package Temperature Range... 0mW Operating Temperature Range, T A to +125 C Storage Temperature Range, T stg to +0 C Lead Temperature (During Soldering, sec), T L C Recommended Operating Conditio: (T A = +25 C, Note 1 unless otherwise specified) Parameter Min Limits Supply Voltage Range (Full T A = Full Package Temperature Range) 3 18 V Removal Time: RESET or PE 5 Pulse Width: RESET 5 PE 5 CLOCK 5 Clock Input Frequency 5 Clock Rise or Fall Time DC Unit Mhz Mhz MHz Note 1. For maximum reliability, nominal operating conditio should be selected so that operation is always within the above ranges. Static Electrical Characteristics: Characteristic Conditio Limits at Indicated Temperature ( C) Units Quiescent Device Current, I DD V O V IN 55 C 40 C +85 C +125 C +25 C Min. Typ.. 0, μa 0, μa 0, μa 0, μa

3 Static Electrical Characteristics (Cont d): Characteristic Conditio Limits at Indicated Temperature ( C) Units Output Low (Sink) Current I OL Min. Output High (Source) Current I OH Min. V O V IN 55 C 40 C +85 C +125 C +25 C Min. Typ , ma 0.5 0, ma 1.5 0, ma 4.6 0, ma ma 9.5 0, ma , ma Output Voltage 0, V LowLevel V OL. 0, V 0, V Output Voltage 0, V HighLevel V OH Min. 0, V 0, V Input Voltage 0.5, V LowLevel V IL. 1, V 1.5, V Input Voltage 0.5, V HighLevel V IH Min V 1.5, V Input Current, I IN. 0,18 18 ±0.1 ±0.1 ±1.0 ±1.0 ± 5 ±0.1 μa Dynamic Electrical Characteristics: (T A = +25 C, C L = 50pF, R L = 200kΩ, t r and t f = 20 unless otherwise specified) Parameter Symbol Test Conditio Min Typ Unit Clock Operation Propagation Delay Time t PHL or t PLH = 5V CLOCK UP or CLOCK DOWN to Q, RESET to Q = V = V PE to Q = 5V = V = V CLOCK UP to CARRY, = 5V CLOCK DOWN to BORROW = V = V RESET or PE to BORROW or CARRY = 5V = V = V 1 220

4 Dynamic Electrical Characteristics (Cont d): (T A = +25 C, C L = 50pF, R L = 200kΩ, t r and t f = 20 unless otherwise specified) Parameter Symbol Test Conditio Min Typ Unit Traition Time t THL, t TLH = 5V = V 50 0 = V Minimum Removal Time (Note 2) t rem = 5V RESET or PE = V = V 30 Minimum Pulse Width t W RESET = 5V = V = V PE = 5V = V = V CLOCK = 5V = V = V imum Clock Input Frequency f CL = 5V MHz = V MHz = V MHz Clock Rise & Fall Time t r, t f = 5V = V = V 5 Input Capacitance C IN RESET pf All Other Inputs pf Note 2. The time required for RESET or PRESET ENABLE control to be removed before clocking. Truth Table CLOCK UP CLOCK DOWN PRESET ENABLE RESET Action COUNT UP NO COUNT COUNT DOWN NO COUNT X X 0 0 PRESET X X X 1 PRESET 1 = High Level 0 = Low Level X = Don t Care

5 Pin Connection Diagram J2 Q2 Q1 CLOCK COWN CLOCK UP Q3 Q4 V SS J1 14 Reset 13 BORROW 12 CARRY 11 PRESET ENABLE J3 9 J (22.0).260 (6.6).200 (5.08).0 (2.54).099 (2.5) Min.700 (17.78)