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HD74HC191 |
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| Part Number | HD74HC191 |
| Manufacturer | Hitachi Semiconductor |
| Description | The HD74HC190 and HD74HC191 are synchronous, reverside up/down counters. The HD74HC190 is a 4-bit decade counter and the HD74HC191 is a 4-bit binary counter. Synchronous counting operation is provided... |
| Features |
• • • • • High Speed Operation: tpd (Clock to Q) = 22 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Pin Arrangement Inputs Data B 1 QB 2 QB QA G B A CK Ripple Clock 16 VCC 15 Data A Inputs 14 Clock 13 Ripple Clock 12 Max/Min 11 Load 10 Data C 9 Data D (Top view) Inputs Outputs QA 3 Enable G 4 Inputs Down/Up 5 QC 6 Outputs QD 7 GND 8 QD D C Dn/Up Max/Min Outputs QC Load 2 HD74HC190/HD74HC191 Timing Chart HD74HC190 Illustrated below ... |
| Document |
 HD74HC191 Data Sheet
PDF 75.27KB |
Similar Datasheet
| No. | Parte # | Fabricante | Descripción | Hoja de Datos |
|---|---|---|---|---|
| 1 | HD74HC190 |
Hitachi Semiconductor |
Synchronous Up/Down Decade/4-bit Binary Counter(Single Clock Line) |
|
| 2 | HD74HC190 |
Renesas |
Synchronous Up/Down Decade Counter |
|
| 3 | HD74HC191 |
Renesas |
Synchronous Up/Down 4-bit Binary Counter |
|
| 4 | HD74HC192 |
Hitachi Semiconductor |
Synchronous Up/Down Decade/4-bit Binary Counter(Dual Clock Line) |
|
| 5 | HD74HC192 |
Renesas |
Synchronous Up/Down Decade Counter |
|
| 6 | HD74HC193 |
Hitachi Semiconductor |
Synchronous Up/Down Decade/4-bit Binary Counter(Dual Clock Line) |
|
Desde 2024. D4U Semiconductor.
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