Datasheet Summary
DM74LS645 Octal Bus Transceiver
August 1986 Revised March 2000
DM74LS645 Octal Bus Transceiver
General Description
These octal bus transceivers are designed for asynchronous two-way munication 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 that the buses are effectively isolated.
Features s Bi-directional bus transceivers in high-density 20-pin packages s Hysteresis at bus inputs improves noise margins s 3-STATE outputs
Ordering Code:
Order Number Package Number
Package Description
DM74LS645WM
M20B
20-L...