These octal bus transceivers are designed for asynchronous two-way communication between data buses. These 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 output-enable (OE)\ input can be used to disable the device so the buses are effectively isolated.
Products containing the "SN74HC640" keyword are: SN74HC640ANSR , SN74HC640DW , SN74HC640DW , SN74HC640DWG4 , SN74HC640DWR , SN74HC640DWR , SN74HC640DWRG4 , SN74HC640N , SN74HC640N , SN74HC640N TI , SN74HC640NE4 , SN74HC640NS , SN74HC640NS-EL , SN74HC640NSLE , SN74HC640NSR , SN74HC640NSR , SN74HC640NSRG4 , SN74HC640PW , SN74HC640PW , SN74HC640PWR| Status | ACTIVE |
| SubFamily | Standard transceiver |
| Technology Family | HC |
| VCC | 6 |
| Bits | 8 |
| Voltage | 6 |
| F @ nom voltage | 28 |
| tpd @ Nom Voltage | 22 |
| IOL | 6 |
| Rating | Catalog |
| Operating temperature range | -40 to 85 |
| Package Group | PDIP|20 |
| Package size: mm2:W x L (PKG) | See datasheet (PDIP) |
| Approx. price | 0.53 | 1ku |
| Schmitt Trigger | No |