NEW DATABASE - 350 MILLION DATASHEETS FROM 8500 MANUFACTURERS
| Part | Manufacturer | Description | Type | Ordering |
| M54HC00 | STMicroelectronics | RAD-HARD QUAD 2-INPUT NAND GATE |
8 pages, |
Original | |
| M54HC00 | STMicroelectronics | QUAD 2-INPUT NAND GATE |
9 pages, |
Original | |
| M54HC00D | STMicroelectronics | RAD-HARD QUAD 2-INPUT NAND GATE |
8 pages, |
Original | |
| M54HC00D1 | STMicroelectronics | RAD-HARD QUAD 2-INPUT NAND GATE |
8 pages, |
Original | |
| M54HC00F1 | SGS-Thomson | QUAD 2 - INPUT NAND GATE |
4 pages, |
Scan | |
| M54HC00F1 | STMicroelectronics | QUAD 2-INPUT NAND GATE |
4 pages, |
Scan | |
| M54HC00F1R | STMicroelectronics | QUAD 2-INPUT NAND GATE |
9 pages, |
Original | |
| M54HC00K | STMicroelectronics | RAD-HARD QUAD 2-INPUT NAND GATE |
8 pages, |
Original | |
| M54HC00K1 | STMicroelectronics | RAD-HARD QUAD 2-INPUT NAND GATE |
8 pages, |
Original | |
| M54HC02 | STMicroelectronics | RAD-HARD QUAD 2-INPUT NOR GATE |
8 pages, |
Original | |
| Catalog Datasheet Results | Type | Document Tags |
| Abstract: www.st.com 29 Contents M54HCxxx - M54HCTxxx Contents 1 M54HC and M54HCT families overview . , Doc ID 17367 Rev 1 M54HC30 Temp. M54HCxxx - M54HCTxxx Table 1. M54HC75 50 krad (Si , to 125 °C 6.0 M54HC161 0 to Vcc M54HCxxx - M54HCTxxx M54HC158 Rad-hard quad , Temp. 6.0 M54HCT245 Doc ID 17367 Rev 1 M54HC245 Other features M54HC and M54HCT , 6.0 M54HCT374 Independe nt enables TTL compatible M54HCxxx - M54HCTxxx M54HC283 ... | Original |
29 pages, |
DECADE COUNTER USE IN SWITCH M54HC244K 920406501F M54HC4040D open drain hex buffer solder strip 940806501F 940501301F 920305001F DIL-16 9409-007-01F DIL-20 54HC273 datasheet abstract |
| Abstract: M54HC148 M54HC151 M54HC153 M54HC154 M54HC157 M54HC158 M54HC160 M54HC161 M54HC163 M54HC164 M54HC165 M54HC166 , 6.0 6.0 6.0 M54HC00 M54HC02 M54HC03 M54HC04 M54HCU04 M54HC08 M54HC10 M54HC11 M54HC14 M54HC20 , M54HC86D M54HC109K M54HC109D M54HC123K M54HC123D M54HC125K M54HC132K M54HC132D M54HCxxx - M54HCTxxx , M54HC153D M54HC154K M54HC154D M54HC157K M54HC157D M54HC158K M54HC158D M54HC160D M54HC161K M54HC161D , M54HC194K M54HC194D M54HC237K M54HC237D M54HC238K M54HC238D M54HC240K M54HC240D M54HCxxx - M54HCTxxx ... | Original |
29 pages, |
M54HC4066K DIL-24 940900701F 930604810F 920501901F 920305001F 54HC4053 54HC273 dil-20 datasheet abstract |
| Abstract: M54HC670 M74HC670 M74HC670 4 WORD X 4 BIT REGISTER FILE (3 STATE) . . . . . . . . HIGH SPEED tPD = 23 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 4 uA (MAX.) AT TA = 25 °C HIGH NOISE , (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC670F1R M74HC670M1R M74HC670M1R , high speed performance of LSTTL combined with true CMOS low power consumption. The M54HC/74HC670 is a , Voltage Input Voltage VO Output Voltage Top Operating Temperature: M54HC Series M74HC M74HC Series ... | Original |
12 pages, |
M74HC670M1R M74HC670C1R M74HC670B1R M74HC670 M54HC670F1R M54HC670 54/74LS670 M54HC670 abstract |
| Abstract: M54HC670 M74HC670 M74HC670 4 WORD X 4 BIT REGISTER FILE (3 STATE) . . . . . . . . HIGH SPEED tPD = 23 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 4 uA (MAX.) AT TA = 25 °C HIGH NOISE , (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC670F1R M74HC670M1R M74HC670M1R , high speed performance of LSTTL combined with true CMOS low power consumption. The M54HC/74HC670 is a , Voltage Input Voltage VO Output Voltage Top Operating Temperature: M54HC Series M74HC M74HC Series ... | Original |
12 pages, |
M74HC670M1R M74HC670C1R M74HC670B1R M74HC670 M54HC670F1R M54HC670 54/74LS670 M54HC670 abstract |
| Abstract: M54HC10 M74HC10 M74HC10 TRIPLE 3-INPUT NAND GATE . . . . . . . . HIGH SPEED tPD = 6 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 1 uA (MAX.) AT TA = 25 °C HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE IOH = , Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC10F1R M74HC10M1R M74HC10M1R , 0 to VCC VO Output Voltage 0 to VCC Top tr, tf Operating Temperature: M54HC Series ... | Original |
9 pages, |
M74HC10M1R M74HC10C1R M74HC10B1R M74HC10 M54HC10F1R M54HC10 74HC10 equivalent 54/74LS10 M54HC10 abstract |
| Abstract: M54HCT04 M74HCT04 M74HCT04 HEX INVERTER . . . . . . . HIGH SPEED tPD = 8 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 1 uA (MAX.) AT TA = 25 °C COMPATIBLE WITH TTL OUTPUTS VIH = 2V , fully compatible with 54/74 LSTTL logic families. M54HCT/74HCT devices are designed to directly , ) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HCT04F1R M74HCT04M1R M74HCT04M1R M74HCT04B1R M74HCT04B1R , 0 to VCC Top tr, tf Operating Temperature: M54HC Series M74HC M74HC Series Input Rise and Fall ... | Original |
9 pages, |
M74HCT04M1R M74HCT04C1R M74HCT04B1R M74HCT04 M54HCT04F1R M54HCT04 54/74LS04 M54HCT04 abstract |
| Abstract: ) ORDER CODES : M54HCTXXXF1R M74HCTXXXM1R M74HCTXXXM1R M74HCTXXXB1R M74HCTXXXB1R M74HCTXXXC1R M74HCTXXXC1R PIN CONNECTIONS (top view , Output Voltage 0 to VCC Top tr, tf Operating Temperature: M54HC Series M74HC M74HC Series Input ... | Original |
10 pages, |
M74HCTXXXM1R M74HCTXXXC1R M74HCTXXXB1R m74hct125 M54HCTXXXF1R 74HCT125 TTL 74ls125 hct125 M54/74HCT125 M54/74HCT126 54/74LS125/126 M54/74HCT125 abstract |
| Abstract: M54HC73 M74HC73 M74HC73 DUAL J-K FLIP FLOP WITH PRESET AND CLEAR . . . . . . . . HIGH SPEED fMAX = 75 MHz (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 2 uA (MAX.) AT TA = 25 °C HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT , (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC73F1R M74HC73M1R M74HC73M1R , Voltage Operating Temperature: M54HC Series M74HC M74HC Series Input Rise and Fall Time tr, tf VCC = 2 ... | Original |
11 pages, |
M74HC73M1R M74HC73C1R M74HC73B1R M74HC73B1 M74HC73 M54HC73F1R M54HC73 74LS73 JK pin DIAGRAM OF IC 74HC73 54/74LS73 M54HC73 abstract |
| Abstract: M54HC139 M74HC139 M74HC139 DUAL 2 TO 4 DECODER/DEMULTIPLEXER . . . . . . . . HIGH SPEED tPD = 12 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 4 uA (MAX.) AT TA = 25 °C HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT , (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC139F1R M74HC139M1R M74HC139M1R , Voltage 0 to VCC Top tr, tf Operating Temperature: M54HC Series M74HC M74HC Series Input Rise and ... | Original |
9 pages, |
M74HC139M1R M74HC139C1R M74HC139B1R M74HC139 M54HC139F1R M54HC139 data sheet 74HC139 54/74LS139 M54HC139 abstract |
| Abstract: M54HC107 M74HC107 M74HC107 DUAL J-K FLIP FLOP WITH CLEAR . . . . . . . . HIGH SPEED fMAX = 75 MHz (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 2 uA (MAX.) AT TA = 25 °C HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT , (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HC107F1R M74HC107M1R M74HC107M1R , Parameter Value 2 to 6 VI Input Voltage VO Top Output Voltage Operating Temperature: M54HC ... | Original |
11 pages, |
M74HC107M1R M74HC107C1R M74HC107B1R M74HC107 M54HC107F1R M54HC107 jk flip flop cmos 74LS107 54/74LS107 M54HC107 abstract |
| Abstract: 0 to VCC VO Output Voltage 0 to VCC Top tr, tf Operating Temperature: M54HC Series ... | Original |
9 pages, |
M74HC05M1R M74HC05C1R M74HC05B1R M74HC05 M54HC05F1R M54HC05 74LS05 equivalent Datasheet of IC 74ls05 54/74LS05 M54HC05 abstract |
| Abstract: to VCC Top tr, tf Operating Temperature: M54HC Series M74HC M74HC Series Input Rise and Fall Time ... | Original |
9 pages, |
74LS32 IC 74LS32 M54HC32 M54HC32F1R M74HC32 M74HC32B1R M74HC32C1R M74HC32M1R 74LS32 PIN schematic 74HC32 54/74LS32 M54HC32 abstract |
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| SGS-THOMSON | OCTAL BUS TRANSCEIVER (3-STATE) HC7640 HC7640 HC7640 HC7640 INVERTING , HC7643 HC7643 HC7643 HC7643 INVERTING/NON INVERTING M54HC7245 , M54HC7640 , M54HC7643 , M54HC7645 , M74HC7245 M74HC7245 M74HC7245 M74HC7245 , M74HC7640 M74HC7640 M74HC7640 M74HC7640 , M74HC7643 M74HC7643 M74HC7643 M74HC7643 , M74HC7645 M74HC7645 M74HC7645 M74HC7645 OCTAL BUS TRANSCEIVER (3-STATE) HC7640 HC7640 HC7640 HC7640 INVERTING , HC7643 HC7643 HC7643 HC7643 INVERTING/NON INVERTING Document Number: 2003 Date Update: 9/4/94 Pages: 10 The document is available in the following formats: Portable Document Format and Raw Text Format www.datasheetarchive.com/files/stmicroelectronics/stonline/books/all/2003.htm |
STMicroelectronics | 06/02/1998 | 1.09 Kb | HTM | 2003.htm |
| SGS-THOMSON | HC691/693 HC691/693 HC691/693 HC691/693 4 BIT BINARY COUNTER/REGISTER (3-STATE) , HC690/692 HC690/692 HC690/692 HC690/692 DECADE COUNTER/REGISTER (3-STATE) M54HC690 , M54HC691 , M54HC692 , M54HC693 , M74HC690 M74HC690 M74HC690 M74HC690 , M74HC691 M74HC691 M74HC691 M74HC691 , M74HC692 M74HC692 M74HC692 M74HC692 , M74HC693 M74HC693 M74HC693 M74HC693 HC691/693 HC691/693 HC691/693 HC691/693 4 BIT BINARY COUNTER/REGISTER (3-STATE) , HC690/692 HC690/692 HC690/692 HC690/692 DECADE COUNTER/REGISTER (3-STATE) Document Number: 1996 Date Update: 9/4/94 Pages: 23 The document is available in the following formats: Portable Document Format and Raw Text www.datasheetarchive.com/files/stmicroelectronics/stonline/books/all/1996.htm |
STMicroelectronics | 06/02/1998 | 1.11 Kb | HTM | 1996.htm |
| SGS-THOMSON | PROGRAMMABLE DIVIDER/TIMER M54HC292 , M54HC294 , M54HC7292 , M54HC7294 , M74HC292 M74HC292 M74HC292 M74HC292 , M74HC294 M74HC294 M74HC294 M74HC294 , M74HC7292 M74HC7292 M74HC7292 M74HC7292 , M74HC7294 M74HC7294 M74HC7294 M74HC7294 PROGRAMMABLE DIVIDER/TIMER Document Number: 1940 Date Update: 9/4/94 Pages: 14 The document is available in the following formats: Portable Document Format and Raw Text Format www.datasheetarchive.com/files/stmicroelectronics/stonline/books/all/1940.htm |
STMicroelectronics | 06/02/1998 | 0.98 Kb | HTM | 1940.htm |
| SGS-THOMSON | SYNCHRONOUS PRESETTABLE 4-BIT COUNTER M54HC160 , M54HC161 , M54HC162 , M54HC163 , M74HC160 M74HC160 M74HC160 M74HC160 , M74HC161 M74HC161 M74HC161 M74HC161 , M74HC162 M74HC162 M74HC162 M74HC162 , M74HC163 M74HC163 M74HC163 M74HC163 SYNCHRONOUS PRESETTABLE 4-BIT COUNTER Document Number: 1909 Date Update: 9/4/94 Pages: 16 The document is available in the following formats: Portable Document Format and Raw Text Format www.datasheetarchive.com/files/stmicroelectronics/stonline/books/all/1909.htm |
STMicroelectronics | 06/02/1998 | 1 Kb | HTM | 1909.htm |
| SGS-THOMSON | SINGLE 8 CHANNEL, DUAL 4 CHANNEL, TRIPLE 2 CHANNEL ANALOG MULTIPLEXER/DEMULTIPLEXER WITH ADDRESS LAT M54HC4351 , M54HC4352 , M54HC4353 , M74HC4351 M74HC4351 M74HC4351 M74HC4351 , M74HC4352 M74HC4352 M74HC4352 M74HC4352 , M74HC4353 M74HC4353 M74HC4353 M74HC4353 SINGLE 8 CHANNEL, DUAL 4 CHANNEL, TRIPLE 2 CHANNEL ANALOG MULTIPLEXER/DEMULTIPLEXER WITH ADDRESS LAT Document Number: 1976 Date Update: 9/4/94 Pages: 16 The document is available in the following formats: Portable Document Format and Raw Text Format www.datasheetarchive.com/files/stmicroelectronics/stonline/books/all/1976.htm |
STMicroelectronics | 06/02/1998 | 1.1 Kb | HTM | 1976.htm |
| SGS-THOMSON | OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HC7240 HC7240 HC7240 HC7240 INVERTED , HC7241/7244 HC7241/7244 HC7241/7244 HC7241/7244 NON INVERTED M54HC7240 , M54HC7241 , M54HC7244 , M74HC7240 M74HC7240 M74HC7240 M74HC7240 , M74HC7241 M74HC7241 M74HC7241 M74HC7241 , M74HC7244 M74HC7244 M74HC7244 M74HC7244 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HC7240 HC7240 HC7240 HC7240 INVERTED , HC7241/7244 HC7241/7244 HC7241/7244 HC7241/7244 NON INVERTED Document Number: 1998 Date Update: 9/4/94 Pages: 12 The document is available in the following formats: Portable Document Format and Raw Text Format www.datasheetarchive.com/files/stmicroelectronics/stonline/books/all/1998.htm |
STMicroelectronics | 06/02/1998 | 1.06 Kb | HTM | 1998.htm |
| SGS-THOMSON | OCTAL BUS TRANSCEIVER (3-STATE) HC245 HC245 HC245 HC245 NON INVERTING HC640 HC640 HC640 HC640 INVERTING , HC643 HC643 HC643 HC643 INVERTING/NON IN M54HC245 , M54HC640 , M54HC643 , M74HC245 M74HC245 M74HC245 M74HC245 , M74HC640 M74HC640 M74HC640 M74HC640 , M74HC645 M74HC645 M74HC645 M74HC645 OCTAL BUS TRANSCEIVER (3-STATE) HC245 HC245 HC245 HC245 NON INVERTING HC640 HC640 HC640 HC640 INVERTING , HC643 HC643 HC643 HC643 INVERTING/NON IN Document Number: 1930 Date Update: 9/4/94 Pages: 11 The document is available in the following formats: Portable Document Format and Raw Text Format www.datasheetarchive.com/files/stmicroelectronics/stonline/books/all/1930.htm |
STMicroelectronics | 06/02/1998 | 1.08 Kb | HTM | 1930.htm |
| SGS-THOMSON | OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HC240 HC240 HC240 HC240 INVERTED , HC241/244 HC241/244 HC241/244 HC241/244 NON INVERTED M54HC240 , M54HC241 , M54HC244 , M74HC240 M74HC240 M74HC240 M74HC240 , M74HC241 M74HC241 M74HC241 M74HC241 , M74HC244 M74HC244 M74HC244 M74HC244 OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HC240 HC240 HC240 HC240 INVERTED , HC241/244 HC241/244 HC241/244 HC241/244 NON INVERTED Document Number: 1927 Date Update: 9/4/94 Pages: 12 The document is available in the following formats: Portable Document Format and Raw Text Format www.datasheetarchive.com/files/stmicroelectronics/stonline/books/all/1927.htm |
STMicroelectronics | 06/02/1998 | 1.05 Kb | HTM | 1927.htm |
| SGS-THOMSON | SINGLE 8 CHANNEL, DUAL 4 CHANNEL, TRIPLE 2 CHANNEL ANALOG MULTIPLEXER/DEMULTIPLEXER M54HC4051 , M54HC4052 , M54HC4053 , M74HC4051 M74HC4051 M74HC4051 M74HC4051 , M74HC4052 M74HC4052 M74HC4052 M74HC4052 , M74HC4053 M74HC4053 M74HC4053 M74HC4053 SINGLE 8 CHANNEL, DUAL 4 CHANNEL, TRIPLE 2 CHANNEL ANALOG MULTIPLEXER/DEMULTIPLEXER Document Number: 1966 Date Update: 9/4/94 Pages: 15 The document is available in the following formats: Portable Document Format and Raw Text Format www.datasheetarchive.com/files/stmicroelectronics/stonline/books/all/1966.htm |
STMicroelectronics | 06/02/1998 | 1.07 Kb | HTM | 1966.htm |
| SGS-THOMSON | DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR M54HC423 , M54HC423A , M74HC423 M74HC423 M74HC423 M74HC423 , M74HC423A M74HC423A M74HC423A M74HC423A DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR Document Number: 1974 Date Update: 9/4/94 Pages: 14 The document is available in the following formats: Portable Document Format and Raw Text Format www.datasheetarchive.com/files/stmicroelectronics/stonline/books/all/1974.htm |
STMicroelectronics | 06/02/1998 | 0.96 Kb | HTM | 1974.htm |
| Part | Manufacturer | Description | Shortform Datasheet | Ordering |
| M54HC00F1 | N/A | 2-Input NAND-Function Logic Gate | ||
| M54HC02F1 | N/A | 2-Input NOR-Function Logic Gate | ||
| M54HC03F1 | N/A | 2-Input NAND-Function Logic Gate | ||
| M54HC04F1 | N/A | Inverting-Function Buffer Gate - 55mW typ quiescent at 5.5V supply | ||
| M54HC08F1 | N/A | 2-Input AND-Function Logic Gate | ||
| M54HC107F1 | N/A | Dual J-K Flip-Flop | ||
| M54HC109F1 | N/A | Dual J-K Flip-Flop | ||
| M54HC10F1 | N/A | 3-Input NAND-Function Logic Gate | ||
| M54HC112F1 | N/A | Dual J-K Flip-Flop | ||
| M54HC113F1 | N/A | Dual J-K Flip-Flop |
| On Semiconductor Part | Industry Part | Manufacturer | Type |
| MC74HC00ANG Buy | M54HC00F1 Buy | SGS-Ates | Close |
| MC74HC00ANG Buy | M54HC00F1R Buy | SGS-Thomson Microelectronics | Close |
| MC74HC02ANG Buy | M54HC02F1 Buy | SGS-Ates | Close |
| MC74HC02ANG Buy | M54HC02F1R Buy | SGS-Thomson Microelectronics | Close |
| MC74HC03ANG Buy | M54HC03F1 Buy | SGS-Ates | Close |
| MC74HC03ANG Buy | M54HC03F1R Buy | SGS-Thomson Microelectronics | Close |
| MC74HC04ANG Buy | M54HC04F1 Buy | SGS-Ates | Close |
| MC74HC04ANG Buy | M54HC04F1R Buy | SGS-Thomson Microelectronics | Close |
| MC74HC08ANG Buy | M54HC08F1 Buy | SGS-Ates | Close |
| MC74HC08ANG Buy | M54HC08F1R Buy | SGS-Thomson Microelectronics | Close |
| Texas Instruments Part | Industry Part | Manufacturer | Type | Comment | Description |
| CD54HC161 Buy | M54HC161 Buy | STMicroelectronics | Direct Replacement | tpd differs | High Speed CMOS Logic 4-Bit Binary Counter with Asynchronous Reset |
| CD54HC163 Buy | M54HC163 Buy | STMicroelectronics | Direct Replacement | tpd differs | High Speed CMOS Logic 4-Bit Binary Counter with Synchronous Reset |
| CD54HC193 Buy | M54HC193 Buy | STMicroelectronics | Direct Replacement | High Speed CMOS Logic Presettable Synchronous 4-Bit Binary Up/Down Counters | |
| CD54HC251 Buy | M54HC251 Buy | STMicroelectronics | Direct Replacement | High Speed CMOS Logic 8-Input Multiplexer with 3-State Outputs | |
| CD54HC257 Buy | M54HC257 Buy | STMicroelectronics | Direct Replacement | tpd differs | High Speed CMOS Logic Non-Inverting Quad 2-Input Multiplexer with 3-State Outputs |
| CD54HC4060 Buy | M54HC4060 Buy | STMicroelectronics | Direct Replacement | tpd differs | High Speed CMOS Logic 14-Stage Binary Counter with Oscillator |
| CD54HC4094 Buy | M54HC4094 Buy | STMicroelectronics | Direct Replacement | High Speed CMOS Logic 8-Stage Shift-and-Store Bus Register with 3-Stage Outputs | |
| CD54HC4520 Buy | M54HC4520 Buy | STMicroelectronics | Direct Replacement | High Speed CMOS Logic Dual Binary Up-Counter | |
| CD54HCT00 Buy | M54HCT00 Buy | STMicroelectronics | Direct Replacement | High Speed CMOS Logic Quad 2-Input NAND Gates | |
| CD54HCT02 Buy | M54HCT02 Buy | STMicroelectronics | Direct Replacement | High Speed CMOS Logic Quad Two-Input NOR Gates |