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74LS623 Octal Bus Transceiver
74LS623
Texas Instrumentsic logic
The SN54LS620/621/622, SN74LS620/621/623 are octal bus transceivers designed for asynchronous two-way communication between data buses. They feature dual-enable inputs (GAB and GBA) to control the direction of data flow.
In stock
Specifications
3- Supply Voltage, VCC
- 7V
- Input Voltage
- 7V
- Off-State Output Voltage
- 5.5V
Pinout
20| Pin | Name | Functions | Notes |
|---|---|---|---|
| — | VCC | POWER | Supply voltage |
| 19 | GBA | GPIO | Enable input for bus A |
| 1 | GAB | GPIO | Enable input for bus B |
| 20 | B8 | GPIO | Bus output for bit 7 of bus A |
| 18 | B1 | GPIO | Bus output for bit 0 of bus B |
| 3 | B2 | GPIO | Bus output for bit 1 of bus B |
| 4 | B3 | GPIO | Bus output for bit 2 of bus B |
| 5 | B4 | GPIO | Bus output for bit 3 of bus B |
| 6 | B5 | GPIO | Bus output for bit 4 of bus B |
| 7 | B6 | GPIO | Bus output for bit 5 of bus B |
| 8 | B7 | GPIO | Bus output for bit 6 of bus B |
| 9 | A1 | GPIO | Bus input for bit 0 of bus A |
| 13 | A2 | GPIO | Bus input for bit 1 of bus A |
| 14 | A3 | GPIO | Bus input for bit 2 of bus A |
| 15 | A4 | GPIO | Bus input for bit 3 of bus A |
| 16 | A5 | GPIO | Bus input for bit 4 of bus A |
| 17 | A6 | GPIO | Bus input for bit 5 of bus A |
| 18 | A7 | GPIO | Bus input for bit 6 of bus A |
| 19 | A8 | GPIO | Bus input for bit 7 of bus A |
| 10 | GND | GND | Ground |
Interactive pinout
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74LS623
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