Radiation-Hardened Quadruple 2-Input NAND Schmitt Triggers
Description
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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
PINOUTS 14-Pin DIP Top View
A1 B1 Y1 A2 B2 Y2 VSS 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VDD B4 A4 Y4 B3 A3 Y3
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 An L L H H Bn L H L H OUTPUT Yn H H H L A1 B1 Y1 A1 B1 Y1
14-Lead Flatpack Top View
1 2 3 4 5 6 7 14 13 12 11 10 9 8 VDD B4 A4 Y4 B3 A3 Y3
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B2 Y2 VSS
LOGIC DIAGRAM
LOGIC SYMBOL
A1 B1 A2 B2 A3 B3 A4 B4 (1) (2) (4) (5) (9) (10) (12) (13) (11) (6) (8) Y2 Y3 Y4 &
A2 B2 (3) A3 Y1 B3 A4 B4
Y2
Y3
Y4
Note: 1.
Logic symbol in accordance with ANSI/IEEE standard 91-1984 and IEC Publication 617-12.
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67 RadHard MSI Logic
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UT54ACS132/UT54ACTS132
RADIATION HARDNESS SPECIFICATIONS 1 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 VDD VI/O TSTG TJ TLS
JC
PARAMETER Supply voltage Voltage any pin Storage Temperature range Maximum junction temperature Lead temperature (soldering 5 seconds) Thermal resistance junction to case DC input current DataSheet4U.
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LIMIT -0.
3 to 7.
0 -.
3 to VDD +.
3 -65 to +150 +175 +300 20 10 1
UNITS V V C C C C/W mA W
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Note:
1.
Stresses outside the list...
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