ST's rad-hard 54HC/HCT logic series is specifically designed to meet hi-rel requirements and space applications. These 5 V high-speed CMOS are available with supply voltage from 2 V up to 6 V, high speed and low power consumption.
They offer an excellent immunity to radiations up to 50 krad and are ESCC qualified. Operating temperature ranges from -55 to 150 °C.
The available packages are DIL 14-16-20-24, Flat 14-16-20-24.
| Part Number | General Description | Radiation Level | Agency Qualification | Agency Generic Spec | EPPL | Hi-Rel Package | Other Features | Supply Voltage(Vcc) min (V) | Supply Voltage(Vcc) max (V) | Vi Range | Temperature range(T) |
| M54HC00 | Rad-Hard Quad 2-Input NAND Gate | 50 krad (Si) | ESCC | 9201/105 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC02 | Rad-Hard Quad 2-Input NOR Gate | 50 krad (Si) | ESCC | 9201/113 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC03 | Rad-Hard Quad 2-Input NAND Open Drain | 50 krad (Si) | ESCC | 9201/114 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC04 | Rad-Hard Hex Inverter | 50 krad (Si) | ESCC | 9401/033 | Yes | DIL-14; Flat-14 | Unbuffered Output | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC08 | Rad-Hard Quad 2-Input AND Gate | 50 krad (Si) | ESCC | 9201/106 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC10 | Rad-Hard Triple 3-Input NAND Gate | 50 krad (Si) | ESCC | 9201/107 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC109 | Rad-Hard Dual J-K Flip-Flop With Preset & Clear | 50 krad (Si) | ESCC | 9306/048 | Yes | DIL-16; Flat-16 | Positive-Edge | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC11 | Rad-Hard Triple 3-Input AND Gate | 50 krad (Si) | ESCC | 9201/117 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC123 | Rad-Hard Dual Retrigg. Monostable Multivibrator with Clear | 50 krad (Si) | ESCC | 9207/006 | - | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC125 | Rad-Hard Quad Bus Buffer 3-State | 50 krad (Si) | ESCC | 9401/039 | Yes | Flat-14 | Inverted Enables | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC132 | Rad-Hard Quad 2-Input Schmitt NAND Gate | 50 krad (Si) | ESCC | 9201/120 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC137 | Rad-Hard 3-to-8 Line Decoder Latch Inverter | 50 krad (Si) | ESCC | 9205/013 | - | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC138 | Rad-Hard 3-to-8 Line Decoder Inverter | 50 krad (Si) | ESCC | 9408/046 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC139 | Rad-Hard Dual 2-to-4 Line Decoder/Demultiplexer | 50 krad (Si) | ESCC | 9205/017 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC14 | Rad-Hard Hex Schmitt Inverter | 50 krad (Si) | ESCC | 9409/007 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC148 | Rad-Hard 8-to-3 Line Priority Encoder | 50 krad (Si) | ESCC | 9410/017 | - | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC151 | Rad-Hard 8-Channel Multiplexer | 50 krad (Si) | ESCC | 9408/054 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC153 | Rad-Hard Dual 4-Channel Multiplexer | 50 krad (Si) | ESCC | 9408/038 | - | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC154 | Rad-Hard 4-to-16 Line Decoder/Demultiplexer | 50 krad (Si) | ESCC | 9205/023 | Yes | DIL-24; Flat-24 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC157 | Rad-Hard Quad 2-Channel Multiplexer | 50 krad (Si) | ESCC | 9408/057 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC158 | Rad-Hard Quad 2-Channel Multiplexer Inverter | 50 krad (Si) | ESCC | 9408/059 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC160 | Rad-Hard Synchronous Decade Counter With Async. Clear | 50 krad (Si) | ESCC | 9205/062 | - | DIL-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC161 | Rad-Hard Synchronous Binary Counter With Async. Clear | 50 krad (Si) | ESCC | 9204/059 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC164 | Rad-Hard 8-bit SIPO Shift Register | 50 krad (Si) | ESCC | 9306/041 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC165 | Rad-Hard 8-bit PISO Shift Register | 50 krad (Si) | ESCC | 9306/042 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC166 | Rad-Hard 8-bit PISO Shift Register With Clear | 50 krad (Si) | ESCC | 9306/043 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC174 | Rad-Hard Hex D-Type Flip-Flop With Clear | 50 krad (Si) | ESCC | 9306/052 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC175 | Rad-Hard Quad D-Type Flip-Flop With Clear | 50 krad (Si) | ESCC | 9203/052 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC191 | Rad-Hard 4-bit Synchronous Binary Up/Down Counter | 50 krad (Si) | ESCC | 9204/066 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC193 | Rad-Hard Synchronous Up/Down Binary Counter | 50 krad (Si) | ESCC | 9204/065 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC194 | Rad-Hard 4-bit PIPO Shit Register | 50 krad (Si) | ESCC | 9306/047 | - | DIL-16 | 4 Shift Modes | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC20 | Rad-Hard Dual 4-Input NAND Gate | 50 krad (Si) | ESCC | 9201/118 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC21 | Rad-Hard Dual 4-Input AND Gate | 50 krad (Si) | ESCC | 9201/108 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC237 | Rad-Hard 3-to-8 Line Decoder Latch | 50 krad (Si) | ESCC | 9205/021 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC240 | Rad-Hard Octal Bus Buffer 3-State Inverter | 50 krad (Si) | ESCC | 9401/034 | Yes | DIL-20; Flat-20 | Independent Enables | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC244 | Rad-Hard Octal Bus Buffer 3-State | 50 krad (Si) | ESCC | 9401/048 | Yes | DIL-20; Flat-20 | Inverted Enables | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC245 | Rad-Hard Octal Bus Transceiver 3-State | 50 krad (Si) | ESCC | 9405/013 | Yes | DIL-20; Flat-20 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC251 | Rad-Hard 8-Channel Multiplexer 3-State | 50 krad (Si) | ESCC | 9408/048 | - | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC257 | Rad-Hard Quad 2-Channel Multiplexer 3-State | 50 krad (Si) | ESCC | 9408/047 | Yes | Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC259 | Rad-Hard 8-bit Adressable Latch | 50 krad (Si) | ESCC | 9203/073 | - | Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC27 | Rad-Hard Triple 3-Input NOR Gate | 50 krad (Si) | ESCC | 9201/109 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC273 | Rad-Hard Octal D-Type Flip-Flop With Clear | 50 krad (Si) | ESCC | 9203/053 | Yes | DIL-20; Flat-20 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC283 | Rad-Hard 4-bit Binary Full Adder | 50 krad (Si) | ESCC | 9202/075 | - | DIL-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC30 | Rad-Hard 8-Input NAND Gate | 50 krad (Si) | ESCC | 9201/110 | - | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC32 | Rad-Hard Quad 2-Input OR Gate | 50 krad (Si) | ESCC | 9201/111 | Yes | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC367 | Rad-Hard Hex Bus Buffer 3-State | 50 krad (Si) | ESCC | 9401/044 | - | DIL-16; Flat-16 | Independent Enables | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC373 | Rad-Hard Octal D-Type Latch 3-State | 50 krad (Si) | ESCC | 9203/059 | Yes | DIL-20; Flat-20 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC374 | Rad-Hard Octal D-Type Flip-Flop 3-State | 50 krad (Si) | ESCC | 9203/060 | Yes | DIL-20; Flat-20 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC393 | Rad-Hard Dual Binary Counter | 50 krad (Si) | ESCC | 9204/074 | - | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC4020 | Rad-Hard 14-Stage Binary Counter | 50 krad (Si) | ESCC | 9204/070 | - | Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC4040 | Rad-Hard 12-Stage Binary Counter | 50 krad (Si) | ESCC | 9204/069 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC4049 | Rad-Hard Hex Buffer/Converter Inverter | 50 krad (Si) | ESCC | 9401/037 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC4050 | Rad-Hard Hex Buffer/Converter | 50 krad (Si) | ESCC | 9401/038 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC4051 | Rad-Hard Single 8-Channel Analog Mux/Demux | 50 krad (Si) | ESCC | 9408/064 | - | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC4053 | Rad-Hard Triple 2-Channel Analog Mux/Demux | 50 krad (Si) | ESCC | 9408/065 | - | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC4060 | Rad-Hard 14-Stage Binary Counter/Oscillator | 50 krad (Si) | ESCC | 9204/076 | - | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC4066 | Rad-Hard Quad Bilateral Switch | 50 krad (Si) | ESCC | 9408/052 | - | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC4078 | Rad-Hard 8-Input Nor/OR Gate | 50 krad (Si) | ESCC | 9201/123 | - | DIL-14; Flat-14 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC4094 | Rad-Hard 8-bit SIPO Shit Register 3-State | 50 krad (Si) | ESCC | 9306/050 | - | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC4514 | Rad-Hard 4-to-16 Line Decoder Latch | 50 krad (Si) | ESCC | 9205/019 | - | DIL-24; Flat-24 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC540 | Rad-Hard Octal Bus Buffer 3-State Inverter | 50 krad (Si) | ESCC | 9401/049 | Yes | Flat-20 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC541 | Rad-Hard Octal Bus Buffer 3-State | 50 krad (Si) | ESCC | 9401/047 | Yes | DIL-20; Flat-20 | Non Inverted Enables | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC573 | Rad-Hard Octal D-Type Latch 3-State | 50 krad (Si) | ESCC | 9202/072 | Yes | DIL-20; Flat-20 | Through Chip Pinout | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC574 | Rad-Hard Octal D-Type Flip-Flop 3-State | 50 krad (Si) | ESCC | 9203/054 | Yes | DIL-20; Flat-20 | Through Chip Pinout | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC590 | Rad-Hard 8 Bit Binary Counter Register 3-State | 50 krad (Si) | ESCC | 9204/071 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC595 | Rad-Hard 8 Bit Shift Register Output Latch 3-State | 50 krad (Si) | ESCC | 9306/051 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC597 | Rad-Hard 8 Bit Latch/Shift Register | 50 krad (Si) | ESCC | 9306/054 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC688 | Rad-Hard 8 Bit Equality Comparator | 50 krad (Si) | ESCC | 9209/005 | Yes | DIL-20; Flat-20 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC74 | Rad-Hard Dual D-Type Flip-Flop With Preset & Clear | 50 krad (Si) | ESCC | 9203/050 | Yes | DIL-14; Flat-14 | Positive-Edge | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC85 | Rad-Hard 4-bit Magnitude Comparator | 50 krad (Si) | ESCC | 9209/004 | Yes | DIL-16; Flat-16 | - | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HC86 | Rad-Hard Quad Exclusive OR Gate | 50 krad (Si) | ESCC | 9201/119 | Yes | DIL-14; Flat-14 | Pinout 1 | 2 | 6 | 0 to VCC | -55 to 125 C |
| M54HCT244 | Rad-Hard Octal Bus Buffer 3-State | 50 krad (Si) | ESCC | 9402/009 | Yes | Flat-20 | Inverted Enables - TTL Compatible | 4.5 | 5.5 | 0 to VCC | -55 to 125 C |
| M54HCT245 | Rad-Hard Octal Bus Transceiver 3-State | 50 krad (Si) | ESCC | 9405/014 | Yes | DIL-20; Flat-20 | TTL Compatible | 4.5 | 5.5 | 0 to VCC | -55 to 125 C |
| M54HCT373 | Rad-Hard Octal D-Type Latch 3-State | 50 krad (Si) | ESCC | 9203/064 | Yes | DIL-20; Flat-20 | TTL Compatible | 4.5 | 5.5 | 0 to VCC | -55 to 125 C |
| M54HCT74 | Rad-Hard Dual D-Type Flip-Flop With Preset & Clear | 50 krad (Si) | ESCC | 9203/070 | Yes | DIL-14; Flat-14 | Positive-Edge - TTL Compatible | 4.5 | 5.5 | 0 to VCC | -55 to 125 C |
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