Aeroflex UTMC UT54ACTS283, UT54ACS283 Datasheet

205 RadHard MSI Logic

UT54ACS283/UT54ACTS283

Radiation-Hardened
4-Bit Binary Full Adders

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 UT54ACS283 and the UT54ACTS283 are 4-bit binary
adders. The adders perform addition of two 4-bit binary words.
The sum ( ) outputs are provided for each bit and the resultant
carry (C4) is obtained as the fifth bit. The adders feature full
internal look-ahead across all four bits for fast carry generation.

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

LOGIC SYMBOL

PINOUTS

16-Pin DIP

Top View

16-Lead Flatpack

Top View

0

(1)

Note:

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

(5)

A1

(3)

A2

(14)

A3

(12)

A4 3

(6)

B1 0

(2)

B2

(15)

B3

(11)

B4 3

(7)

C0 C1

(4)

1

P

Q

2

(10)

(13)

3
4

0

3

(9)

C4

C0

1
2

3
4
5

7

6

16
15

14
13
12

10

11

B2
A2

1

A1
B1

C0

V

DD

B3
A3

3

A4
B4

4

8 9

V

SS

C4

2

1
2

3
4
5

7

6

16
15

14
13
12

10

11

8 9

B2
A2

1

A1
B1
C0

V

SS

2

V

DD

B3
A3

3

A4
B4

4

C4

RadHard MSI Logic 206

UT54ACS283/UT54ACTS283

FUNCTION TABLE

H = high level, L = low level

Note:

Input conditions at A1, A2, B1, B2, and C0 are used to determine outputs 1 and 2 and the value of the internal carry C2. The values at C2, A3, B3, A4, and

B4 are then used to determine outputs 3, 4, and C4.

INPUT OUTPUT

When C0 = L When C2 = L When C0 = H When C2 = H

A1 A3 B1 B3 A2 A4 B2 B4 1 3 2 4 C2 C4 1 3 2 4 C2 C4

L L L L L L L H L L
H L L L H L L L H L
L H L L H L L L H L
H H L L L H L H H L
L L H L L H L H H L
H L H L H H L L L H
L H H L H H L L L H
H H H L L L H H L H
L L L H L H L H H L
H L L H H H L L L H
L H L H H H L L L H
H H L H L L H H L H
L L H H L L H H L H
H L H H H L H L H H
L H H H H L H L H H
H H H H L H H H H H