Datasheet Details
| Part number | SN74AS638A |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 638.95 KB |
| Description | OCTAL BUS TRANSCEIVERS |
| Datasheet | SN74AS638A-etcTI.pdf |
|
|
Overview: SN74ALS638A, SN74ALS639A, SN74AS638A, SN74AS639 OCTAL BUS TRANSCEIVERS • Bidirectional Bus Transceivers in High-Density 20-Pin Packages • Choice of True or Inverting Logic • A-Bus Outputs Are Open Collector; B-Bus.
| Part number | SN74AS638A |
|---|---|
| Manufacturer | Texas Instruments |
| File Size | 638.95 KB |
| Description | OCTAL BUS TRANSCEIVERS |
| Datasheet | SN74AS638A-etcTI.pdf |
|
|
|
These octal bus transceivers are designed for asynchronous two-way munication between open-collector and 3-state buses.
The devices transmit data from the A bus (open-collector) to the B bus (3 state) or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input.
The output-enable (OE) input can be used to disable the device so the buses are isolated.
| Part Number | Description |
|---|---|
| SN74AS639 | OCTAL BUS TRANSCEIVERS |
| SN74AS623 | OCTAL BUS TRANSCEIVERS |
| SN74AS640 | OCTAL BUS TRANSCEIVERS |
| SN74AS641 | OCTAL BUS TRANSCEIVERS |
| SN74AS645 | Octal Bus Transceivers |
| SN74AS646 | OCTAL BUS TRANSCEIVERS AND REGISTERS |
| SN74AS648 | OCTAL BUS TRANSCEIVERS AND REGISTERS |
| SN74AS651 | OCTAL BUS TRANSCEIVERS AND REGISTERS |
| SN74AS652 | OCTAL BUS TRANSCEIVERS AND REGISTERS |
| SN74AS00 | Quadruple 2-Input Positive-NAND Gates |