1

Standard Products

UT54ACS20/UT54ACTS20

Dual 4-Input NAND Gates

Datasheet

November 2010

www.aeroflex.com/logic

FEATURES

1.2μ CMOS

- Latchup immune

High speed

Low power consumption

Single 5 volt supply

Available QML Q or V processes

Flexible package

- 14-pin DIP

- 14-lead flatpack

UT54ACS20 - SMD 5962-96526

UT54ACTS20 - SMD 5962-96527

DESCRIPTION

The UT54ACS20 and the UT54ACTS20 are dual 4-input

NAND gates. The circuits perform the Boolean functions

Y = A

⋅B⋅C⋅D or Y = A + B + C + D in positive logic.

The devices are characterized over full military temperature

range of -55

°C to +125°C.

FUNCTION TABLE

LOGIC SYMBOL

PINOUTS

14-Pin DIP

Top View

14-Lead Flatpack

Top View

LOGIC DIAGRAM

INPUTS

OUTPUT

A

B

C

D

Y

H

H

H

H

L

L

X

X

X

H

X

L

X

X

H

X

X

L

X

H

X

X

X

L

H

Y1

(6)

(8)

Y2

(1)

A1

(2)

B1

(4)

C1

(5)

D1

(9)

A2

(10)

B2

(12)

C2

(13)

D2

Note:

1. Logic symbol in accordance with ANSI/IEEE standard 91-1984 and IEC

Publication 617-12.

&

1

2

3

4

5

7

6

14

13

12

11

10

8

9

A1

B1

NC

C1

D1

Y1

D2

C2

NC

B2

A2

Y2

1

2

3

4

5

7

6

14

13

12

11

10

8

9

D2

C2

NC

B2

A2

Y2

A1

B1

NC

C1

D1

Y1

Y1

A1

B1

C1

D1

A2

B2

C2

D2

Y2