1. General description
The 74ABT543A high performance BiCMOS device combines low static and dynamic
power dissipation with high speed and high output drive.
The 74ABT543A octal registered transceiver contains two sets of D-type latches for
temporary storage of data flowing in either direction. Separate latch enable (LEAB, LEBA)
and output enable (OEAB, OEBA) inputs are provided for each register to permit
independent control of data transfer in either direction. The outputs are guaranteed to sink
64 mA.
2. Features and benefits
 Combines 74ABT245 and 74ABT373 type functions in one device
 8-bit octal transceiver with D-type latch
 Back-to-back registers for storage
 Separate controls for data flow in each direction
 Live insertion and extraction permitted
 Output capability: +64 mA to 32 mA
 Power-up 3-state
 Power-up reset
 Latch-up protection exceeds 500 mA per JESD78B class II level A
 ESD protection:
 HBM JESD22-A114F exceeds 2000 V
 MM JESD22-A115-A exceeds 200 V