16-BIT D-TYPE EDGE-TRIGGERED FLIP-FLOP
WITH 3-STATE OUTPUTS
SCAS679B – MAY 2002 – REVISED JULY 2002
D Controlled Baseline
– One Assembly/Test Site, One Fabrication
D Extended Temperature Performance of
–40°C to 125°C
D Enhanced Diminishing Manufacturing
Sources (DMS) Support
D Enhanced Product Change Notification
D Qualification Pedigree†
D Member of the Texas Instruments
D Inputs Are TTL-Voltage Compatible
D 3-State Bus Driving True Outputs
D Flow-Through Architecture Optimizes
D Distributed VCC and GND Pins Minimize
High-Speed Switching Noise
† Component qualification in accordance with JEDEC and industry
standards to ensure reliable operation over an extended
temperature range. This includes, but is not limited to, highly
accelerated stress test (HAST) or biased 85/85, temperature
cycle, autoclave or unbiased HAST, electromigration, bond
intermetallic life, and mold compound life.
The SN74ACT16374Q-EP is a 16-bit
edge-triggered D-type flip-flop 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
This device can be used as two 8-bit flip-flops or one 16-bit flip-flop. On the positive transition of the clock (CLK)
input, the Q outputs of the flip-flop take on the logic levels set up at the data (D) inputs.
An 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 provides 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 flip-flop. Old
data can be retained or new data can be entered while the outputs are in the high-impedance state.
–40°C to 125°C SSOP – DL
Tape and reel SN74ACT16374QDLREP ACT16374QEP
‡ Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 2002, Texas Instruments Incorporated
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