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MC74HC244A_06 Datasheet, PDF (2/8 Pages) ON Semiconductor – Octal 3−State Noninverting Buffer/Line Driver/ Line Receiver High−Performance Silicon−Gate CMOS | |||
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PIN ASSIGNMENT
ENABLE A 1
A1 2
YB4 3
A2 4
YB3 5
A3 6
YB2 7
A4 8
YB1 9
GND 10
20 VCC
19 ENABLE B
18 YA1
17 B4
16 YA2
15 B3
14 YA3
13 B2
12 YA4
11 B1
FUNCTION TABLE
Inputs
Outputs
Enable A,
Enable B A, B YA, YB
L
L
L
L
H
H
H
X
Z
Z = high impedance
MC74HC244A
A1 2
A2 4
A3 6
DATA
INPUTS
A4 8
B1 11
B2 13
B3 15
B4 17
LOGIC DIAGRAM
18 YA1
16 YA2
14 YA3
12 YA4
NONINVERTING
9 YB1 OUTPUTS
7 YB2
5 YB3
3 YB4
OUTPUT ENABLE A 1
ENABLES ENABLE B 19
PIN 20 = VCC
PIN 10 = GND
ORDERING INFORMATION
Device
Package
Shippingâ
MC74HC244AN
PDIPâ20
18 Units / Rail
MC74HC244ANG
PDIPâ20
(PbâFree)
18 Units / Rail
MC74HC244ADW
SOICâ20 WIDE
38 Units / Rail
MC74HC244ADWG
SOICâ20 WIDE
(PbâFree)
38 Units / Rail
MC74HC244ADWR2
SOICâ20 WIDE
1000 Tape & Reel
MC74HC244ADWR2G
SOICâ20 WIDE
(PbâFree)
1000 Tape & Reel
MC74HC244ADT
TSSOPâ20*
75 Units / Rail
MC74HC244ADTG
TSSOPâ20*
75 Units / Rail
MC74HC244ADTR2
TSSOPâ20*
2500 Tape & Reel
MC74HC244ADTR2G
TSSOPâ20*
2500 Tape & Reel
MC74HC244AF
SOEIAJâ20
40 Units / Rail
MC74HC244AFG
SOEIAJâ20
(PbâFree)
40 Units / Rail
MC74HC244AFEL
SOEIAJâ20
2000 Tape & Reel
MC74HC244AFELG
SOEIAJâ20
(PbâFree)
2000 Tape & Reel
â For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently PbâFree.
http://onsemi.com
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