74ABT543A
Octal latched transceiver with dual enable; 3-state
Rev. 5 — 3 November 2011
Product data sheet
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
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
Description
74ABT543AD 40 C to +85 C SO24
plastic small outline package; 24 leads;
body width 7.5 mm
74ABT543ADB 40 C to +85 C
SSOP24 plastic shrink small outline package; 24 leads;
body width 5.3 mm
74ABT543APW 40 C to +85 C
TSSOP24 plastic thin shrink small outline package; 24 leads;
body width 4.4 mm
Version
SOT137-1
SOT340-1
SOT355-1
