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74HC244 Octal Buffer
SN74HC244
Texas Instrumentsic logic
The SN54HC244 and SN74HC244 are octal buffers designed to improve performance in memory address drivers, clock drivers, and bus-oriented receivers/transmitters with 3-state outputs.
In stock
Specifications
8- Operating Voltage
- 2V to 6V (VCC) (TA = 25°C)
- Supply Current
- 8 µA (VI = VCC or 0, IO = 0, VCC = 6V) (ICC)
- Interface
- TTL compatible
- Resolution
- N/A
- Range
- 0 to VCC (VOH, VOL)
- Accuracy
- N/A
- Temperature Range
- -55°C to 125°C (TA)
- Package
- J, DB, DW, N, NS, PW, W Package (20-pin)
Pinout
20| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1A1 | Input | GPIO | Input A1 |
| 20 | VCC | POWER | Power Pin |
| 2 | Output Enable | GPIO | OE for 1st buffer |
| 18 | Output | GPIO | Y1 of 1st buffer |
| 4 | Input | GPIO | Input A2 |
| 16 | Output | GPIO | Y2 of 1st buffer |
| 6 | Input | GPIO | Input A3 |
| 14 | Output | GPIO | Y3 of 1st buffer |
| 8 | Input | GPIO | Input A4 |
| 12 | Output | GPIO | Y4 of 1st buffer |
| 11 | Input | GPIO | Input B1 |
| 13 | Input | GPIO | Input B2 |
| 15 | Input | GPIO | Input B3 |
| 17 | Input | GPIO | Input B4 |
| 19 | Output Enable | GPIO | OE for 2nd buffer |
| 9 | Output | GPIO | Y1 of 2nd buffer |
| 7 | Output | GPIO | Y2 of 2nd buffer |
| 5 | Output | GPIO | Y3 of 2nd buffer |
| 3 | Output | GPIO | Y4 of 2nd buffer |
| 10 | GND | GND | Ground |
Interactive pinout
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SN74HC244
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