| TYPE | DESCRIPTION |
|---|
| Mounting Style | Through Hole |
| Number of Pins | 20 Pin |
| Supply Voltage (DC) | 4.75 V to 5.25 V |
| Case/Package | DIP |
| Number of Outputs | 8 Output |
| Output Current | 24.0 mA |
| Number of Bits | 8 Bit |
| Propagation Delay Max (tpd) | 15.0 ns |
| Voltage Nodes | 5.00 V |
| Output Current Drive | -625 µA |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
The SN74LS645N is an octal Bus Transceiver with open collector outputs and designed for asynchronous 2-way communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction control (DIR) input. The enable input (G) can be used to disable the device so the buses are effectively isolated. The -1 version of the SN74LS645 is identical to the standard versions except that the recommended maximum IOL is increased to 48mA. It is characterized for operation from 0 to 70°C.
● Hysteresis at bus inputs improves noise margins
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