| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 20 Pin |
| Supply Voltage (DC) | 4.75V ~ 5.25V |
| Case/Package | SOP-20 |
| Number of Outputs | 8 Output |
| Number of Circuits | 8 Circuit |
| Number of Channels | 8 Channel |
| Number of Bits | 8 Bit |
| Propagation Delay Max (tpd) | 15.0 ns |
| Voltage Nodes | 5.00 V |
| Quiescent Current | 64.0 mA |
| Output Current Drive | -625 µA |
| Operating Temperature (Max) | 70 ℃ |
| Operating Temperature (Min) | 0 ℃ |
| Supply Voltage | 4.75V ~ 5.25V |
| Supply Voltage (Max) | 5.25 V |
| Supply Voltage (Min) | 4.75 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Size-Length | 12.6 mm |
| Size-Width | 5.3 mm |
| Size-Height | 1.95 mm |
| Operating Temperature | 0℃ ~ 70℃ |
These octal bus transceivers are designed for asynchronous two-way communication between data buses. The devices transmit 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 versions of the SN74LS640 thru SN74LS642, SN74LS644, and SN74LS645 are identical to the standard versions except that the recommended maximum IOL is increased to 48 milliamperes. There are no -1 versions of the SN54LS640 thru SN54LS642, SN54LS644, and SN54LS645.
●The SN54LS640 thru SN54LS642, SN54LS644, and SN54LS645 are characterized for operation over the full military tempearture range of 55°C to 125°C. The SN74LS640 thru SN74LS642, SN74LS644, and SN74LS645 are characterized for operation from 0°C to 70°C.
TI
TEXAS INSTRUMENTS SN74LS645-1N Bus Transceiver, 74LS645, 8Channels, 48mA, 4.75V to 5.25V, DIP-20
TI
TEXAS INSTRUMENTS SN74LS645-1DW Transceiver, 74LS645, 4.75V to 5.25V, SOIC-20
TI
IC BUS TRANSCEIVER 8Bit 20SO
TI
IC BUS TRANSCEIVER 8Bit 20SOIC
TI
IC BUS TRANSCEIVER 8Bit 20DIP
TI
IC BUS TRANSCEIVER 8Bit 20SOIC
TI
IC BUS TRANSCEIVER 8Bit 20SO
TI
IC BUS TRANSCEIVER 8Bit 20SOIC
TI
IC BUS TRANSCEIVER 8Bit 20SOIC
TI
IC BUS TRANSCEIVER 8Bit 20SO
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