Controlled Baseline
– One Assembly/Test Site, One Fabrication
Site
Extended Temperature Performance of
–40°C to 125°C
Enhanced Diminishing Manufacturing
Sources (DMS) Support
Enhanced Product Change Notification
Qualification Pedigree†
Member of the Texas Instruments
Widebus Family
Inputs Are TTL-Voltage Compatible
3-State Bus Driving True Outputs
Full Parallel Access for Loading
Distributed VCC and GND Pins Minimize
High-Speed Switching Noise

description
The SN74ACT16373Q-EP is a 16-bit D-type
transparent latch with 3-state outputs, designed
specifically for driving highly capacitive or
relatively low-impedance loads. It is particularly
suitable for implementing buffer registers, I/O
ports, bidirectional bus drivers, and working
registers.
This device can be used as two 8-bit latches or one 16-bit latch. The Q outputs of the latches follow the data
(D) inputs if the latch-enable (LE) input is taken high. When LE is taken low, the Q outputs are latched at the
levels set up at the D inputs.
A buffered output-enable (OE) input can be used to place the outputs in either a normal logic state (high or low
logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the
bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines
in a bus-organized system, without need for interface or pullup components.
OE does not affect the internal operations of the latches. Old data can be retained or new data can be entered
while the outputs are in the high-impedance state.