Texas Instruments CD54HC7266, CD74HC7266 High-Speed CMOS Logic Quad 2-Input EXCLUSIVE NOR Gate User Manual Data Sheet
Summary
Datasheet for Texas Instruments CD54HC7266 and CD74HC7266 high-speed CMOS quad 2-input Exclusive NOR gates containing four independent Exclusive NOR functions for logical comparison, parity generation/checking, and adder/subtracter implementation. Features buffered inputs and outputs with 10 LSTTL loads fan-out for standard outputs and 15 for bus driver outputs. Operates from 2V to 6V with balanced propagation delay, achieving significant power reduction compared to LSTTL while maintaining 30% V
Page 1 Text Content
CD54HC7266, CD74HC7266
Data sheet acquired from Harris Semiconductor SCHS219D High-Speed CMOS Logic
August 1997 - Revised September 2003 Quad 2-Input EXCLUSIVE NOR Gate
Features Description Four Independent EXCLUSIVE NOR Gates The ’HC7266 contains four independent Exclusive NOR
gates in one package. They provide the system designer
Buffered Inputs and Outputs
[ /Title
with means for implementation of the EXCLUSIVE NOR
(CD74H Logical Comparators
function.
C7266) Parity Generators and Checkers
This device is functionally the same as the TTL226. They
/Subject Adders/Subtracters differ in that the ’HC7266 has active high and low outputs
whereas the 226 has open collector outputs.
(High Fanout (Over Temperature Range)
Speed Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
CMOS Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads Ordering Information
Logic Wide Operating Temperature Range . . . -55o C to 125o C
TEMP. RANGE
Quad 2- Balanced Propagation Delay and Transition Times PART NUMBER (o C) PACKAGE Input
Significant Power Reduction Compared to LSTTL CD54HC7266F3A -55 to 125 14 Ld CERDIP
EXCLU- Logic ICs
CD74HC7266E -55 to 125 14 Ld PDIP
SIVE HC Types
CD74HC7266M -55 to 125 14 Ld SOIC
2V to 6V Operation
High Noise Immunity: NIL 30%, NIH 30%of VCC at CD74HC7266MT -55 to 125 14 Ld SOIC
VCC = 5V
CD74HC7266M96 -55 to 125 14 Ld SOIC
NOTE: When ordering, use the entire part number. The suffix denotes tape and reel. The suffix denotes small-quantity reel of 250.
Pinout
CD54HC7266 (CERDIP) CD74HC7266 (PDIP, SOIC) TOP VIEW
1A VCC
GND 3A
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © 2003, Texas Instruments Incorporated
Page Summary Contents For Texas Instruments CD54HC7266, CD74HC7266 High-Speed CMOS Logic Quad 2-Input EXCLUSIVE NOR Gate User Manual Data Sheet
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 12 |
| File Size | 436.56 KB |
| Published | June 19, 2026 |
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Frequently Asked Questions
What primary logic function does the HC7266 contain?
It contains four independent 2-Input EXCLUSIVE NOR gates.
What is the recommended operational temperature range?
The device operates across a wide temperature range of -55°C to 125°C.
How should I handle this circuit board during installation?
These devices are sensitive to electrostatic discharge; users must follow proper IC Handling Procedures.
What is the acceptable voltage supply range for HC types?
The operating Supply Voltage (VCC) for HC types ranges from 2V to 6V.