MC74HC244ADW Price & Stock

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Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi Bus Driver, HC/UH Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20 23472
1-24:  $0.3071
25-99:  $0.301
100-499:  $0.2887
500-999:  $0.2764
1000+:  $0.261
Buy
MC74HC244ADWG onsemi Bus Driver, HC/UH Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20 29343
1-24:  $0.3783
25-99:  $0.3707
100-499:  $0.3556
500-999:  $0.3405
1000+:  $0.3216
Buy
MC74HC244ADWR2G onsemi Bus Driver, HC/UH Series, 2-Func, 4-Bit, True Output, CMOS, PDSO20 25375
1-24:  $0.3646
25-99:  $0.3573
100-499:  $0.3427
500-999:  $0.3281
1000+:  $0.3099
Buy
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWG onsemi 100% new and original in stock
Inquiry
MC74HC244ADWR2G onsemi 100% new and original in stock
Inquiry
MC74HC244ADW price|Ersa Limited
Ersa Limited
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi IC BUFF/DVR TRI-ST DUAL 20SOIC 24651
Inquiry
MC74HC244ADWG onsemi IC BUFFER NON-INVERT 6V 20SOIC 950
Inquiry
MC74HC244ADWR2G onsemi IC BUFFER NON-INVERT 6V 20SOIC 1444
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi IC BUFF/DVR TRI-ST DUAL 20SOIC 15195
$0.232
Buy
MC74HC244ADWG onsemi IC BUFFER NON-INVERT 6V 20SOIC 62
$0.713
Buy
MC74HC244ADWR2G onsemi IC BUFFER NON-INVERT 6V 20SOIC 4652
$0.697
Buy
MC74HC244ADW price|Microchip USA
Microchip USA
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWR2G ON Semiconductor OEM/EMS/CM ONLY | NO BROKER QUOTES | Member of ERAI, GIDEP, & ITAR | ISO9001 AND AS9120 Certified ; Tape & Reel (TR) 5027
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW
sku #: 1807-MC74HC244ADW
ON Semiconductor Buffer/Line Driver 8-CH Non-Inverting 3-ST CMOS 20-Pin SOIC W Rail 23472
1:  $0.357
10:  $0.337
100:  $0.318
500:  $0.300
1000:  $0.283
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWG ON Semiconductor IC BUFF/DVR TRI-ST DUAL 20SOIC
Logic - Buffers, Drivers, Receivers, Transceivers
5694
Buy
MC74HC244ADWR2G ON Semiconductor IC BUFF/DVR TRI-ST DUAL 20SOIC
Logic - Buffers, Drivers, Receivers, Transceivers
39825
Buy
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA IC 20SOIC TUBE 8
$0.98
Buy
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi 25637
$0.28
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW Onsemi IC BUFF/DVR TRI-ST DUAL 20SOIC
Integrated Circuits (ICs)>Logic-Buffers, Drivers, Receivers, Transceivers
28166
1:  $2.140
25:  $2.097
100:  $2.011
500:  $1.926
1000:  $1.819
Buy
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWG ON Semiconductor IC BUFFER NON-INVERT 6V 20SOIC 1707
Inquiry
MC74HC244ADWR2G ON Semiconductor IC BUFFER NON-INVERT 6V 20SOIC 3000
Inquiry
MC74HC244ADW price|J2 Sourcing
J2 Sourcing
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWR2G
sku #: MC74HC244ADWR2G
ON 2803
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ON Semiconductor
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Part # Manufacturer Description Stock Price Buy
MC74HC244ADW Analog Devices Inc./Maxim Integrated new and original 2643
Inquiry
MC74HC244ADWG Analog Devices Inc./Maxim Integrated new and original 2412
Inquiry
MC74HC244ADWR2 Analog Devices Inc./Maxim Integrated new and original 2678
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW Rochester Electronics DC:24+ ; IC BUFF/DVR TRI-ST DUAL 20SOIC 20163
Inquiry
MC74HC244ADW price|Mouser
Mouser
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWG
sku #: 863-MC74HC244ADWG
onsemi Buffers & Line Drivers 2-6V Octal 3-State Non-Inverting
Buffers & Line Drivers
569 In Stock
1:  $0.77
10:  $0.582
114:  $0.481
1026:  $0.366
2242:  $0.348
4484:  $0.335
11210:  $0.334
26904:  $0.331
Buy
MC74HC244ADWR2G
sku #: 863-MC74HC244ADWR2G
onsemi Buffers & Line Drivers 2-6V Octal 3-State Non-Inverting
Buffers & Line Drivers
4488 In Stock
1:  $0.61
10:  $0.473
100:  $0.371
500:  $0.36
1000:  $0.314
2000:  $0.312
25000:  $0.305
Buy
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW Rochester Electronics IC BUFFER NON-INVERT 6V 20SOIC 25637
1:  $0.280
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC ; Tube 8886
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ON Semiconductor Contains Lead Not Qualified GULL WING 2005 (Amplifier Type) Amplifier 500mW 15ns 50pF 125C 2622
1:  $0.175
200:  $0.143
500:  $0.139
1000:  $0.135
Buy
MC74HC244ADW price|Win Source
Win Source
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ON Semiconductor IC BUFF/DVR TRI-ST DUAL 20SOIC / Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC 3540
275:  $0.184
Buy
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi Available, Contact us 20000
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW Rochester Electronics IC BUFFER NON-INVERT 6V 20SOIC 25637
1:  $0.280
Buy
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi Buffer, Non-Inverting 2 Element 4 Bit per Element 3-State Output 20-SOIC 27374
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWR2G ON In stock
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi 2-6V Octal 3-State 8000
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MC74HC244ADW price|IC Online Co.,Ltd
IC Online Co.,Ltd
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi IC BUFF/DVR TRI-ST DUAL 20SOIC
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ON Semiconductor DC:21+ ; SMD /PB 3000
Inquiry
MC74HC244ADWG ON Semiconductor DC:21+ ; SMD /PB 3000
Inquiry
MC74HC244ADWR2 ON Semiconductor DC:21+ ; SMD /PB 3000
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MC74HC244ADWR2G ON Semiconductor DC:21+ ; SMD /PB 3000
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ON DC:22+ 9000
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MC74HC244ADWG ON DC:22+ ; SOIC-20_300mil 9000
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MC74HC244ADWR2 ON DC:22+ 9000
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MC74HC244ADWR2G ON DC:22+ ; SOIC-20_300mil 9000
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MC74HC244ADW price|Direct Components
Direct Components
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Part # Manufacturer Description Stock Price Buy
MC74HC244ADWG ON BUY DIRECT----> 26710
Inquiry
MC74HC244ADWR2G ON BUY DIRECT----> 36678
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA 72
Inquiry
MC74HC244ADW 58
Inquiry
MC74HC244ADW MOT 4
Inquiry
MC74HC244ADW price|Resion LLC
Resion LLC
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA In-Stock ; DC:1999 30
Inquiry
MC74HC244ADW MOTOROLA In-Stock ; DC:1991 8
Inquiry
MC74HC244ADW MOTOROLA In-Stock ; DC:1994+ 42
Inquiry
MC74HC244ADW ON In-Stock ; DC:2000 5
Inquiry
MC74HC244ADW price|BARUM Electronics
BARUM Electronics
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW AMI Semiconductor / ON Semiconductor in stock,Can be ship within 1 day 17278
Inquiry
MC74HC244ADWG AMI Semiconductor / ON Semiconductor IC BUFFER NON-INVERT 6V 20SOIC 25267
Inquiry
MC74HC244ADWR2 AMI Semiconductor / ON Semiconductor in stock,Can be ship within 1 day 26352
Inquiry
MC74HC244ADWR2G AMI Semiconductor / ON Semiconductor IC BUFFER NON-INVERT 6V 20SOIC 12164
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ON Brand new original 4020
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi IC BUFF/DVR TRI-ST DUAL 20SOIC ; DC:21+ ; 20-SOIC 111
Inquiry
MC74HC244ADW MOTOROLA DC:9921+ ; SOP 88
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWR2 MOTOROLA new and original ROHS ; DC:9936+ ; SOP20 338
Inquiry
MC74HC244ADWR2 ON new and original ROHS ; DC:04+ ; SOP 13
Inquiry
MC74HC244ADWR2G ON new and original ROHS ; DC:0534+ ; SOP7.2 100
Inquiry
MC74HC244ADWR2G ON new and original ROHS ; DC:16+ ; SOP20 896
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi IC BUFF/DVR TRI-ST DUAL 20SOIC 17272
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA IN STOCK 521
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA IN STOCK Immediate delivery 471
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi 20-SOIC (0.295 7.50mm Width) New and original,In Stock 13446
Inquiry
MC74HC244ADW price|Ariat Technology
Ariat Technology
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW Motorola, Inc MC74HC244ADW MOTOROLA
Specialized ICs
2680
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWR2G ON DC:0534+ ; SOP7.2 100
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi Check alternative solution with competitive price 52383
$0.249
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA IN STOCK Immediate delivery 921
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW AMI Semiconductor / ON Semiconductor The parts are in stock 9530
Inquiry
MC74HC244ADWG AMI Semiconductor / ON Semiconductor IC BUFFER NON-INVERT 6V 20SOIC 8151
Inquiry
MC74HC244ADWR MOTOROLA The parts are in stock 10000
Inquiry
MC74HC244ADWR2 AMI Semiconductor / ON Semiconductor The parts are in stock 11760
Inquiry
MC74HC244ADWR2G AMI Semiconductor / ON Semiconductor IC BUFFER NON-INVERT 6V 20SOIC 18000
Inquiry
MC74HC244ADWR2R AMI Semiconductor / ON Semiconductor The parts are in stock 33383
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWG
sku #: MC74HC244ADWG
ON 38
Inquiry
MC74HC244ADWR2G
sku #: MC74HC244ADWR2G
ON 1000
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA Stock to ship immediately 421
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA OEM/CM In stock 466
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW onsemi IC BUFF/DVR TRI-ST DUAL 20SOIC 2437
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW AUG Electronic Distribution since 1988. ERAI Certified supplier. ; DC:Unchecked 49
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ON Semiconductor BUS DRIVER
Integrated Circuits (ICs)
520
10:  $0.65
100:  $0.59
1000:  $0.47
2500:  $0.47
Inquiry
MC74HC244ADWG AMI Semiconductor / ON Semiconductor IC BUFFER NON-INVERT 6V 20SOIC
Logic - Buffers, Drivers, Receivers, Transceivers
376
10:  $0.65
100:  $0.59
1000:  $0.47
2500:  $0.47
Inquiry
MC74HC244ADWR2G AMI Semiconductor / ON Semiconductor IC BUFFER NON-INVERT 6V 20SOIC
Logic - Buffers, Drivers, Receivers, Transceivers
1789
10:  $0.45
100:  $0.36
1000:  $0.33
2500:  $0.33
Inquiry
MC74HC244ADWR2R ON
Integrated Circuits (ICs)
1250
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ROCHESTER ELECTRONICS, LL OEM/CM QUOTES ONLY | NO BROKERS 29739
Inquiry
MC74HC244ADW2G On Semi OEM/CM QUOTES ONLY | NO BROKERS 951
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA SOP ; DC:9921+ 3747
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ON 6378
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA Original stock,24-hour delivery 1321
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOT In Stock
Inquiry
MC74HC244ADW ONSEMI In Stock
Inquiry
MC74HC244ADW Motorola Semiconductor In Stock
Inquiry
MC74HC244ADW ON Semiconductor In Stock
Inquiry
MC74HC244ADW price|Utsource
Utsource
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWR2 ON
Elec-component>IC Chips>
37871
1:  $0.69650
5:  $0.55720
10:  $0.32039
Buy
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ON SMD ; DC:2022+ 800
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA in stock Immediately 1014
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA IN STOCK Immediate delivery 481
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW Rochester Electronics, LLC Buffer/Line Driver 8-CH Non-Inverting 3-ST CMOS 20-Pin SOIC W Rail - Bulk (Alt: MC74HC244ADW) in stock
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA MC74HC244ADW MOTOROLA SOP 3000
Buy
MC74HC244ADW price|Quest Components
Quest Components
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW Motorola Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 1025
731:  $0.2448
154:  $0.2741
1:  $0.5874
Buy
MC74HC244ADW ON Semiconductor Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 277
154:  $0.2741
42:  $0.3916
1:  $0.5874
Buy
MC74HC244ADW Motorola Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 14
11:  $0.4200
1:  $0.5250
Buy
MC74HC244ADW ON Semiconductor Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 91
40:  $0.3813
9:  $0.5084
1:  $0.6355
Buy
MC74HC244ADW Motorola Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 36
9:  $0.5084
1:  $0.6355
Buy
MC74HC244ADW Motorola Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 931
441:  $0.3640
111:  $0.4550
1:  $0.9100
Buy
MC74HC244ADW ON Semiconductor Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 89
28:  $0.5460
6:  $0.7280
1:  $0.9100
Buy
MC74HC244ADW Motorola Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 312
103:  $0.4895
27:  $0.5874
1:  $0.9790
Buy
MC74HC244ADW Motorola Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 75
27:  $0.5874
6:  $0.7832
1:  $0.9790
Buy
MC74HC244ADW ON Semiconductor Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 12
6:  $0.7832
1:  $0.9790
Buy
MC74HC244ADW Motorola Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 323
101:  $0.5000
26:  $0.6000
1:  $1.0000
Buy
MC74HC244ADW Motorola Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 4
3:  $3.0000
1:  $4.5000
Buy
MC74HC244ADW Motorola Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 1117
410:  $0.3916
103:  $0.4895
1:  $0.9790
Buy
MC74HC244ADW ON Semiconductor Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 24
6:  $0.7832
1:  $0.9790
Buy
MC74HC244ADW Motorola Driver/Buffer Device, Dual, 4-Bit, 20 Pin, Plastic, SOP 12
6:  $0.7832
1:  $0.9790
Buy
MC74HC244ADWG ON Semiconductor HC/UH SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, 20 Pin Plastic SMT 114
34:  $0.4824
8:  $0.6030
1:  $0.7236
Buy
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ON DC:1202 ; SOIC-20 121
Inquiry
MC74HC244ADW price|Depu Electronics
Depu Electronics
Certificates
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOTOROLA 2019+_SOP_new and original 2500
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW
sku #: MC74HC244ADW
ONSEMI 22927
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW ON Semiconductor IC - TUBES 14
1+:  $0.12709
Buy
MC74HC244ADW ON Semiconductor IC ; DC:0145 24
1+:  $0.12709
Buy
MC74HC244ADWR2 ON Semiconductor IC - T&R ; DC:0130 875
1+:  $0.68895
217+:  $0.54803
547+:  $0.51671
1064+:  $0.48018
1613+:  $0.42798
Buy
MC74HC244ADWR2 ON Semiconductor IC - T&R ; DC:0412 1000
1+:  $0.68895
217+:  $0.54803
547+:  $0.51671
1064+:  $0.48018
1613+:  $0.42798
Buy
Part # Manufacturer Description Stock Price Buy
MC74HC244ADW MOT DC:9941 28
Inquiry
MC74HC244ADW MOT DC:9946 192
Inquiry
MC74HC244ADW MOT DC:9852 5
Inquiry
Part # Manufacturer Description Stock Price Buy
MC74HC244ADWR2 ON Semiconductor Buffer/Line Driver 8-CH Non-Inverting 3-ST CMOS 20-Pin SOI ; DC:2001-07-23 1782
Buy
See Also:
MC74HC244ADWG MC74HC244ADT MC74HC245ADW MC74HCT244ADW MC74HC240ADW MC74HC244AD MC74HC241ADW MC74HC244ADWR MC74HC244AN MC74HC245DW MC74HC374ADW MC74HC244AF MC74HC540ADW MC74HC240ADT MC74HCT245ADW MC74HCT240ADW MC74HC574ADW MC74HC240ADWG MC74HC244ANG MC74HC244A MC74HCT244ADG MC74HC244ADTG MC74HC564ADW MC74HC244AFG MC74HCT241ADW MC74HC240ADWR MC74HC245AD MC74HC245ADWR MC74HC541ADW MC74HCT244ADT MC74HC244AH MC74HCT244ADWG MC74HC244ADWR2 MC74HC245ADWG MC74HC273ADW MC74HC245ADT MC74HCT04AD MC74HCT244A MC74HC240A MC74HC646DW MC74HC14ADG MC74HC640ADT MC74HC374AD MC74HC244ADTEL MC74HCT244AWD MC74HC04ADT MC74HC244AFL1 MC74HCT244AFG MC74HCT244AF More » MC74HC245AFG MC74HCT04ADT MC74HC540ADT MC74HC244ADWR2R MC74HC299DW MC74HC240ADWR2 MC74HC273ADWG MC74HC244AFR2 MC74HC541ADWG MC74HC563ADW MC74HCU04ADG MC74HC245A MC74HC245AN MC74HCT14ADT MC74HC245AF MC74HC154DW MC74HC04ADR MC74HCT244ANG MC74HCT241ADWG MC74HC240AFG MC74HCT74AD MC74HC164ADG MC74HC273ADT MC74HCU04AD MC74HC259ADG MC74HC20ADG MC74HC04ADG MC74HC240ANG MC74HCT541ADW MC74HC245ANG MC74HCT245ADT MC74HC374ADT MC74HC244AFR1 MC74HC574ADWG MC74HCT14ADG MC74HC174AD MC74HC541ADT MC74HCT374ADW MC74HCT574ADW MC74HC174ADG MC74HCT74ADG MC74HC573ADW MC74HC14AD MC74HC04AD MC74HC244ADWR2G MC74HC238ADG MC74HC251ADG MC74HCT244ADWR2 MC74HC240AN MC74HC244ADTR2 MC74HC374ADWG MC74HC164AD MC74HC74AD MC74HC373ADW MC74HC244AFL2 MC74HC74ADT MC74HC74ADG MC74HC574ADT MC74HC174ADT MC74HC245ADWR2 MC74HCT273ADW MC74HCT14AD MC74HCT74ADT MC74HC240AF MC74HC14ADT MC74HCT04ADR MC74HC241AN MC74HC245ADTG MC74HCT245ADWG MC74HC244AFEL