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74LV161 Binary Counter
74LV161
Texas Instrumentsic logic
The 74LV161 is a synchronous binary counter that operates from 2V to 5.5V and supports mixed-mode voltage operation on all ports.
In stock
Specifications
8- Operating Voltage
- 2-5.5 V (VCC) / 0-5.5 V (VI, VO)
- Supply Current
- ±25 mA
- Interface
- Synchronous digital
- Resolution
- 4-bit binary counter
- Range
- 0-15 (binary)
- Accuracy
- ±1 ns for tpd, ±2.5 ns typical for setup and hold times ns
- Temperature Range
- -40°C to 85°C (TSSOP-DB) / -55°C to 125°C (CDIP-J)
- Package
- SOIC, SOP-NS, TSSOP-PW, SSOP-DB, CDIP-J, CFP-FK
Pinout
16Low source legibility.The original manufacturer datasheet for this part was difficult to read, so this pinout may be incomplete or imperfect. Always confirm against the specific manufacturer’s datasheet before wiring.
| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | CLR | GPIO | Clear outputs to zero (asynchronous) |
| 2 | CLK | GPIO | Triggers the four flip-flops on the rising edge of the clock waveform |
| 3 | A | GPIO | |
| 4 | B | GPIO | |
| 5 | C | GPIO | |
| 6 | D | GPIO | |
| 7 | ENP | GPIO | Synchronous enable for presetting |
| 8 | ENT | GPIO | Synchronous enable for counting and cascading |
| 9 | QA | — | |
| 10 | QB | — | |
| 11 | QC | — | |
| 12 | QD | — | |
| 13 | LOAD | GPIO | Preset data |
| 14 | RCO | GPIO | Ripple-carry output for cascading counters |
| 15 | GND | GND | |
| 16 | VCC | POWER |
Interactive pinout
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74LV161
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