SN54HC266 Datasheet, PDF (1/4 Pages) Texas Instruments – QUADRUPLE 2-INPUT EXCLUSIVE-NOR GATES WITH OPEN-DRAIN OUTPUTS

SN54HC266, SN74HC266
QUADRUPLE 2-INPUT EXCLUSIVE-NOR GATES
WITH OPEN-DRAIN OUTPUTS
SCLS135C – DECEMBER 1982 – REVISED MAY 1997
D Package Options Include Plastic
Small-Outline (D) and Ceramic Flat (W)
Packages, Ceramic Chip Carriers (FK), and
Standard Plastic (N) and Ceramic (J)
300-mil DIPs
description
The ’HC266 are composed of four independent
2-input exclusive-NOR gates and feature
open-drain outputs. They perform the Boolean
function Y = A ⊗ B or Y = AB + AB in positive logic.
SN54HC266 . . . J OR W PACKAGE
SN74HC266 . . . D OR N PACKAGE
(TOP VIEW)
1A ₁
1B 2
1Y 3
2Y 4
2A 5
2B 6
GND 7
14 ^V_CC
13 4B
12 4A
11 4Y
10 3Y
9 3B
8 3A
The SN54HC266 is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74HC266 is characterized for
operation from –40°C to 85°C.
SN54HC266 . . . FK PACKAGE
(TOP VIEW)
FUNCTION TABLE
INPUTS
A
B
OUTPUT
Y
L
L
H
L
H
L
H
L
L
H
H
H
1Y
3 2 1 20 19
4
18
4A
NC 5
17 NC
2Y 6
16 4Y
NC 7
15 NC
2A 8
14 3Y
9 10 11 12 13
logic symbol^†
1
1A
2
1B
5
2A
6
2B
8
3A
9
3B
12
4A
13
4B
NC – No internal connection
=1
3
1Y
4
2Y
10
3Y
11
4Y
† _{This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.}
Pin numbers shown are for the D, J, N, and W packages.
logic diagram, each gate (positive logic)
A
Y
B
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
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