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UT54ACS132/UT54ACTS132
Radiation-Hardened
Quadruple 2-Input NAND Schmitt Triggers
FEATURES
• radiation-hardened CMOS
- Latchup immune
• High speed
• Low power consumption
• Single 5 volt supply
• Available QML Q or V processes
• Flexible package
- 14-pin DIP
- 14-lead flatpack
DESCRIPTION
The UT54ACS132 and the UT54ACTS132 are 2-input NAND
gates with Schmitt Trigger input levels. A high applied on both
the inputs forces the output to a low state.
The devices are characterized over full military temperature
range of -55 C to +125 C.
FUNCTION TABLE
INPUTS OUTPUT
An Bn Yn
L L H
L H H
H L H
H H L
LOGIC SYMBOL
(1)
A1
B1
A2
B2
A3
B3
A4
B4
(2)
(4)
(5)
(9)
(10)
(12)
(13)
&
(3)
(6)
(8)
(11)
Y1
Y2
Y3
Y4
PINOUTS
A1
B1
Y1
A2
B2
Y2
V
A1
B1
Y1
A2
B2
Y2
V
SS
LOGIC DIAGRAM
A1
B1
A2
B2
A3
B3
A4
B4
14-Pin DIP
Top View
1 14
2 13
3 12
4 11
5 10
6 9
7 8
SS
14-Lead Flatpack
Top View
1 14
2 13
3 12
4 11
5 10
6 9
7 8
V
B4
A4
Y4
B3
A3
Y3
DD
Y1
Y2
Y3
Y4
V
B4
A4
Y4
B3
A3
Y3
DD
Note:
1. Logic symbol in accordance with ANSI/IEEE standard 91-1984
and IEC Publication 617-12.
67 RadHard MSI Logic
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UT54ACS132/UT54ACTS132
RADIATION HARDNESS SPECIFICATIONS
1
PARAMETER LIMIT UNITS
Total Dose 1.0E6 rads(Si)
SEU Threshold
2
80
SEL Threshold 120
Neutron Fluence 1.0E14
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
T
V
V
T
DD
I/O
STG
T
J
LS
Maximum junction temperature +175 C
Lead temperature (soldering 5 seconds) +300 C
Supply voltage -0.3 to 7.0 V
Voltage any pin -.3 to VDD +.3 V
Storage Temperature range -65 to +150 C
MeV-cm2/mg
MeV-cm2/mg
2
n/cm
JC
I
I
P
D
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.
Thermal resistance junction to case 20 C/W
DC input current 10 mA
Maximum power dissipation 1 W
RECOMMENDED OPERATING CONDITIONS
SYMBOL PARAMETER LIMIT UNITS
V
DD
V
IN
T
C
Supply voltage 4.5 to 5.5 V
Input voltage any pin 0 to V
DD
Temperature range -55 to + 125 C
V
RadHard MSI Logic 68