Aeroflex UTMC UT54ACTS253, UT54ACS253 Datasheet
177 RadHard MSI Logic
UT54ACS253/UT54ACTS253
Radiation-Hardened
Dual 4-Input Multiplexers, Three-State Outputs
FEATURES
Permits multiplexing from N lines to 1 line
Performs parallel-to-serial conversion
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 UT54ACS253 and the UT54ACTS253 are 1-line to 4-line
multiplexers that contain drivers to supply full binary decoding.
Separate output control inputs are provided for each of the two
four-line sections.
Use the three-state outputs to drive data lines in bus-organized
systems. With all but one of the common outputs disabled the
low-impedance of the single enable output will drive the bus
line to a high or low logic level. Each output has its own strobe
(G).
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
SELECT
INPUTS
DATA INPUTS OUTPUT
CONTROL
OUTPUT
B A C0 C1 C2 C3 G Y
X X X X X X H Z
L L L X X X L L
L L H X X X L H
L H X L X X L L
L H X H X X L H
H L X X L X L L
H L X X H X L H
H H X X X L L L
H H X X X H L H
1
2
3
4
5
7
6
16
15
14
13
12
10
11
1G
B
1C3
1C2
1C1
1C0
1Y
V
DD
2G
A
2C3
2C2
2C1
2C0
8 9
V
SS
2Y
1
2
3
4
5
7
6
16
15
14
13
12
10
11
V
DD
1G
B
1C3
1C2
1C1
1C0
1Y
2G
A
2C3
2C2
2C1
2C0
V
SS
2Y
8
9
(14)
A
(2)
B
1
0
MUX
Note:
1. Logic symbol in accordance with ANSI/IEEE Std 91-1984 and IEC
Publication 617-12.
(1)
1G
EN
(6)
1C0 0
(5)
1C1
(4)
1C2
(3)
1C3
(15)
2G
(10)
2C0
(11)
2C1
(7)
1Y
2C2
(13)
2C3
(9)
2Y
(12)
1
2
3
G
0
3
---
RadHard MSI Logic 178
UT54ACS253/UT54ACTS253
LOGIC DIAGRAM
(7)
1Y
(9)
2Y
(1)
(6)
(5)
(4)
(3)
(2)
(14)
(10)
(11)
(12)
(13)
2C3
2C2
2C1
2C0
A
B
1C3
1C2
1C1
1C0
1G
(15)
OUTPUT
CONTROL
OUTPUT
CONTROL
2G
DATA 1
DATA 2
SELECT
1G
Loading...