Aeroflex UTMC UT54ACTS157, UT54ACS157 Datasheet

95 RadHard MSI Logic

UT54ACS157/UT54ACTS157

Radiation-Hardened
Quadruple 2 to 1 Multiplexers

FEATURES

• radiation-hardened CMOS

- Latchup immune

• High speed

• Low power consumption

• Single 5 volt supply

• Available QML Q or V processes

• Flexible package

- 16-pin DIP

- 16-lead flatpack

DESCRIPTION

The UT54ACS157 and the UT54ACTS157 are monolithic data
selectors/multiplexers. A 4-bit word is selected from one of two
sources and is routed to the four outputs. A separate strobe
input, G, is provided.

The devices are characterized over full military temperature
range of -55 C to +125 C.

FUNCTION TABLE

PINOUTS

16-Pin DIP

Top View

16-Lead Flatpack

Top View

LOGIC SYMBOL

INPUTS OUTPUT

STROBEGSELECT

A/B

DATA

A B

Y

H X X X L

L L L X L
L L H X H
L H X L L
L H X H H

1
2
3

4
5

7

6

16

15
14
13
12

10

11

A/B

A1
B1
Y1
A2
B2
Y2

V

DD

G
A4
B4
Y4
A3
B3

8

9V

SS

Y3

1
2
3

4
5

7

6

16
15

14
13
12

10

11

V

DD

A/B

A1
B1
Y1
A2
B2
Y2

G
A4
B4
Y4
A3
B3

V

SS

Y3

8

9

(15)

G

(1)

A/B G1

EN

MUX

Note:

1. Logic symbol in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.

(2)

A1

1

(3)

B1 1

(5)

A2

(6)

B2

(11)

A3

(10)

B3

(14)

A4

(13)

B4

(4)

Y1

(7)

Y2

(9)

Y3

(12)

Y4

RadHard MSI Logic 96

UT54ACS157/UT54ACTS157

LOGIC DIAGRAM

(12)

(9)

(4)

(7)

1A

1B

2A

2B

3A

3B

4A

4B

STROBE G

SELECT A/B

(2)

(3)

(5)

(6)

(11)

(10)

(14)

(13)

(15)

(1)

1Y

2Y

3Y

4Y