Document
Standard Products
UT54ACS157/UT54ACTS157
Quadruple 2 to 1 Multiplexers
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
- 16-pin DIP - 16-lead flatpack UT54ACS157 - SMD 5962-96552 UT54ACTS157 - SMD 5962-96553
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
INPUTS
OUTPUT
STROBE G
SELECT A/B
DATA AB
Y
HXXX L
LLLXL
L LHXH
LHXL L
L HXHH
PINOUTS
A/B A1 B1 Y1 A2 B2 Y2 VSS
16-Pin DIP Top View
A/B 1 16 VDD
A1 2 15 G
B1 3 14 A4
Y1 4 13 B4
A2 5 12 Y4
B2 6 11 A3
Y2 7 10 B3
VSS 8
9 Y3
16-Lead Flatpack Top View
1 16 2 15 3 14 4 13 5 12 6 11 7 10 89
VDD G A4 B4 Y4 A3 B3 Y3
LOGIC SYMBOL
(15) G
(1) A/B
(2) A1
(3) B1
(5) A2
(6) B2
(11) A3
(10) B3
(14) A4
(13) B4
EN G1
1 MUX 1
(4) Y1 (7) Y2 (9) Y3 (12) Y4
Note: 1. Logic symbol in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
1
LOGIC DIAGRAM
1A (2) 1B (3) 2A (5) 2B (6) 3A (11) 3B (10) 4A (14) 4B (13) STROBE G (15) SELECT A/B (1)
(4) 1Y
(7) 2Y
(9) 3Y
(12) 4Y
2
OPERATIONAL ENVIRONMENT1 PARAMETER Total Dose SEU Threshold 2 SEL Threshold
Neutron Fluence
LIMIT 1.0E6
80 120 1.0E14
UNITS rads(Si) MeV-cm2/mg MeV-cm2/mg n/cm2
Notes: 1. Logic will not latchup during radiation exposure within the limits defined in the table. 2. Device storage elements are immune to SEU affects.
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
LIMIT
UNITS
VDD
Supply voltage
-0.3 to 7.0
V
VI/O TSTG
TJ TLS ΘJC II
Voltage any pin Storage Temperature range Maximum junction temperature Lead temperature (soldering 5 seconds) Thermal resistance junction to case
DC input current
-.3 to VDD +.3 -65 to +150 +175 +300 20 ±10
V °C °C °C °C/W mA
PD
Maximum power dissipation
1W
Note: 1. Stresses outside the listed absolute maximum ratings may cause permanent damage to the device. This is a stress rating only, functional operation of the device at
these or any other conditions beyond limits indicated in the operational sections is not recommended. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
SYMBOL VDD VIN TC
PARAMETER Supply voltage Input voltage any pin Temperature range
LIMIT 4.5 to 5.5 0 to VDD -55 to + 125
UNITS V V °C
3
DC ELECTRICAL CHARACTERISTICS 7
(VDD = 5.0V ±10%; VSS = 0V 6, -55°C < TC < +125°C); Unless otherwise noted, Tc is per the temperature range ordered.
SYMBOL VIL
VIH
IIN VOL
VOH
IOS IOL IOH Ptotal
PARAMETER
Low-level input voltage 1 ACTS ACS
High-level input voltage 1 ACTS ACS
Input leakage current ACTS/ACS
Low-level output voltage 3 ACTS ACS
High-level output v.