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SCAS016A − D2957, JUNE 1987 − REVISED APRIL 1993
• Inputs Are TTL-Voltage Compatible
54ACT11020 . . . J PACKAGE
74ACT11020 . . . D OR N PACKAGE
• Flow-Through Architecture to Optimize
(TOP VIEW)
PCB Layout
• Center-Pin V
and GND Configurations to
Minimize High-Speed Switching Noise
CC
1B
1A
NC
1C
1D
V
1
2
3
4
5
6
7
14
13
12
11
10
9
• EPICt (Enhanced-Performance Implanted
1Y
CMOS) 1-mm Process
GND
2Y
CC
• 500-mA Typical Latch-Up Immunity
at 125°C
• Package Options Include Plastic
Small-Outline Packages, Ceramic Chip
Carriers, and Standard Plastic and Ceramic
300-mil DIPs
2A
2B
NC
2D
2C
8
54ACT11020 . . . FK PACKAGE
(TOP VIEW)
description
These devices contain two independent 4-input
NAND gates. They perform the Boolean functions
Y = ASBSCSD or Y = A + B + C + D in positive logic.
3
2
1
20 19
18
2B
NC
NC
1B
4
5
6
7
8
NC
NC
NC
2C
17
16
15
14
The 54ACT11020 is characterized for operation
over the full military temperature range of − 55°C
to 125°C. The 74ACT11020 is characterized for
operation from − 40°C to 85°C.
NC
1A
9 10 11 12 13
FUNCTION TABLE
(each gate)
INPUTS
OUTPUT
Y
NC − No internal connection
A
H
L
B
C
H
X
X
L
D
H
X
X
X
L
H
X
L
L
logic diagram (positive logic)
H
H
H
H
X
X
X
1A
X
X
1B
1C
1D
1Y
2Y
X
†
logic symbol
2A
2B
2C
2D
2
1A
&
1
1B
3
5
1Y
2Y
13
1C
12
1D
10
2A
9
2B
7
2C
6
2D
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
EPIC is a trademark of Texas Instruments Incorporated.
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Copyright 1993, Texas Instruments Incorporated
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2−1
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