Standard Products
UT54ACS244/UT54ACTS244
Octal Buffers & Line Drivers, Three-State Outputs
Datasheet
November 2010
www.aeroflex.com/logic
FEATURES
Three-state outputs drive bus lines or buffer memory address
registers
1.2μ CMOS
- Latchup immune
High speed
Low power consumption
Single 5 volt supply
Available QML Q or V processes
Flexible package
- 20-pin DIP
- 20-lead flatpack
UT54ACS244 - SMD 5962-96570
UT54ACTS244 - SMD 5962-96571
PINOUTS
DESCRIPTION
The UT54ACS244 and the UT54ACTS244 are non-inverting
octal buffer and line drivers which improve the performance and
density of three-state memory address drivers, clock drivers, and
bus-oriented receivers and transmitters.
The devices are characterized over full military temperature
range of -55°C to +125°C.
FUNCTION TABLE
INPUTS
1G, 2G
L
L
H
A
L
H
X
OUTPUT
Y
L
H
Z
LOGIC SYMBOL
1G (1)
(2)
1A1
1A2 (4)
(6)
1A3
(8)
1A4
EN
(18)
1Y1
(16)
1Y2
(14)
1Y3
(12)
1Y4
1G
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
VSS
(19)
2G
EN
(11)
2A1
(13)
2A2
(15)
2A3
(17)
2A4
(9)
2Y1
(7)
2Y2
(5)
2Y3
(3)
2Y4
Note:
1. Logic symbol in accordance with ANSI/IEEE Std 91-1984 and IEC
Publication 617-12.
1
20-Pin DIP
Top View
1G 1 20 VDD
1A1 2 19 2G
2Y4 3 18 1Y1
1A2 4 17 2A4
2Y3 5 16 1Y2
1A3 6 15 2A3
2Y2 7 14 1Y3
1A4 8 13 2A2
2Y1 9 12 1Y4
VSS 10 11 2A1
20-Lead Flatpack
Top View
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
VDD
2G
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
