
UT54ACS04/UT54ACTS04
Radiation-Hardened
Hex Inverters
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 UT54ACS04 and the UT54ACTS04 are hex inverters. The
circuits perform the Boolean function Y = A.
The devices are characterized over full military temperature
range of -55 C to +125 C.
FUNCTION TABLE
INPUT OUTPUT
A Y
H L
L H
PINOUTS
14-Pin DIP
Top View
1 14
A1
2 13
Y1
3 12
A2
4 11
Y2
5 10
A3
6 9
Y3
SS
7 8
V
V
A6
Y6
A5
Y5
A4
Y4
DD
14-Lead Flatpack
Top View
A1
Y1
A2
Y2
A3
Y3
V
SS
1 14
2 13
3 12
4 11
5 10
6 9
7 8
V
DD
A6
Y6
A5
Y5
A4
Y4
LOGIC DIAGRAM
LOGIC SYMBOL
(1)
A1
(3)
A2
(5)
A3
(9)
A4
(11)
A5
(13)
A6
Note:
1. Logic symbol in accordance with ANSI/IEEE standard 91-1984 and
IEC Publication 617-12.
1
(2)
(4)
(6)
(8)
(10)
(12)
Y1
Y2
Y3
Y4
Y5
Y6
A1
A2
A3
A4
A5
A6
Y1
Y2
Y3
Y4
Y5
Y6
9 RadHard MSI Logic

UT54ACS04/UT54ACTS04
RADIATION HARDNESS SPECIFICATIONS
1
PARAMETER LIMIT UNITS
Total Dose 1.0E6 rads(Si)
SEU Threshold
SEL Threshold
2
80
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 10

UT54ACS04/UT54ACTS04
DC ELECTRICAL CHARACTERISTICS
7
(VDD = 5.0V 10%; VSS = 0V 6, -55 C < TC < +125 C)
SYMBOL PARAMETER CONDITION MIN MAX UNIT
V
IL
Low-level input voltage
ACTS
ACS
V
IH
High-level input voltage
ACTS
ACS
I
IN
Input leakage current
ACTS/ACS VIN = V
V
OL
Low-level output voltage
ACTS
ACS
V
OH High-level output voltage
ACTS
ACS
I
OS
Short-circuit output current
ACTS/ACS
1
0.8
.3V
DD
1
.5V
DD
.7V
DD
or V
DD
3
I
= 8mA
OL
I
= 100 A
OL
3
I
= -8mA
OH
I
= -100 A
OH
2 ,4
VO = VDD and V
SS
SS
-1
.7V
DD
VDD - 0.25
-200 200 mA
1 A
0.40
0.25
V
V
V
V
I
OL Output current
(Sink)
I
OH
Output current
(Source)
P
total
I
DDQ
I
DDQ
Power dissipation
Quiescent Supply Current VDD = 5.5V 10 A
Quiescent Supply Current Delta
ACTS
C
C
IN
OUT
Input capacitance
Output capacitance 5
10
VIN = VDD or V
SS
8 mA
VOL = 0.4V
10
VIN = VDD or V
SS
-8 mA
VOH = VDD - 0.4V
2, 8, 9
CL = 50pF 1.8 mW/
MHz
For input under test
1.6 mA
VIN = VDD - 2.1V
For all other inputs
VIN = VDD or V
V
= 5.5V
DD
5
= 1MHz @ 0V 15 pF
SS
= 1MHz @ 0V 15 pF
11 RadHard MSI Logic

UT54ACS04/UT54ACTS04
Notes:
1. Functional tests are conducted in accordance with MIL-STD-883 with the following input test conditions: VIH = VIH(min) + 20%, - 0%; VIL = VIL(max) + 0%,
- 50%, as specified herein, for TTL, CMOS, or Schmitt compatible inputs. Devices may be tested using any input voltage within the above specified range, but
are guaranteed to VIH(min) and VIL(max).
2. Supplied as a design limit but not guaranteed or tested.
3. Per MIL-PRF-38535, for current density 5.0E5 amps/cm2, the maximum product of load capacitance (per output buffer) times frequency should not exceed
3,765 pF/MHz.
4. Not more than one output may be shorted at a time for maximum duration of one second.
5. Capacitance measured for initial qualification and when design changes may affect the value. Capacitance is measured between the designated terminal and V
frequency of 1MHz and a signal amplitude of 50mV rms maximum.
6. Maximum allowable relative shift equals 50mV.
7. All specifications valid for radiation dose 1E6 rads(Si).
8. Power does not include power contribution of any TTL output sink current.
9. Power dissipation specified per switching output.
10. This value is guaranteed based on characterization data, but not tested.
SSs
at
AC ELECTRICAL CHARACTERISTICS
2
(VDD = 5.0V 10%; VSS = 0V 1, -55 C < TC < +125 C)
SYMBOL PARAMETER MINIMUM MAXIMUM UNIT
t
PHL
t
PLH
Notes:
1. Maximum allowable relative shift equals 50mV.
2. All specifications valid for radiation dose 1E6 rads(Si)
Input to Yn 1 19 ns
Input to Yn 1 11 ns
RadHard MSI Logic 12