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74HC193 Up/Down Counter
SN74HC193
Texas Instrumentsic logic
The 74HC193 is a 4-bit synchronous up/down binary counter that can be preset and cascaded without external circuitry.
In stock
Specifications
8- Package
- D, J, N, NS, PW, W, CDIP (J), SOP (NS), PDIP (N) packages available.
- Operating Voltage
- 2 V to 6 V
- Supply Current
- 80-µA Max µA
- Interface
- Synchronous, reversible up/down counter
- Resolution
- 4-bit
- Range
- 0 to 15 (binary)
- Accuracy
- ±4-mA Output Drive at 5 V mA
- Temperature Range
- -55°C to 125°C for some packages, -40°C to 85°C for others °C
Pinout
12Low 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 |
|---|---|---|---|
| A | CLR | GPIO | Clear input |
| B | QA | GPIO | Output of the first flip-flop |
| C | QB | GPIO | Output of the second flip-flop |
| D | QC | GPIO | Output of the third flip-flop |
| E | QD | GPIO | Output of the fourth flip-flop |
| F | UP | GPIO | Count up input |
| G | DOWN | GPIO | Count down input |
| H | LOAD | GPIO | Preset input |
| I | BO | GPIO | Borrow output (for cascading) |
| J | CO | GPIO | Carry output (for cascading) |
| K | VCC | POWER | Supply voltage |
| L | GND | GND | Ground |
Interactive pinout
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SN74HC193
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