74 Series Logic
A range of classic 74 series logic chips from Silicon ARK
The older hard to find items are tested unused NOS ( New Old Stock ) in perfect condition.
Modern 74's will be NEW Stock and RoHS Compliant.
All varients are listed: 74xxx (original) , 74LSxxx (low power Schottky TTL) , 74HCxxx (high speed CMOS) , 74HTCxxx (HC version with LS TTL compatible inputs),
So as to make one for one replacement selection easier we also list the same chips but by different manufacturers, for complete compatibility.
Power requirements: 74LS: 5V +/- 0.25V , 74HC: 2 to 6V , 74HCT: 5V +/- 0.5V HC and HCT devices are static sensitive.
To search for all the available options for a single device simply key in the basic number inthe top search box i.e 7401 .... 7474 or 74HC01, 74HC74 or 74LS01, 74LS74 .....
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-40 %
Out Of Stock
Brand: Motorola
Model: 74LS682 (SN74LS682N) 8-Bit magnatude comparator - Motorola
SN74LS682N 8-Bit magnatude comparator by Motorola. Package: 20-pin DIP Download Motorola SN74LS682N datasheet: Status: NOS (New Old Stock) Individually tested components: YES RoHS compliant: no ..
£2.10 £1.25
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-40 %
Brand: Texas Instruments
Model: 74LS682 (SN74LS682N) 8-Bit magnatude comparator-Texas
SN74LS682N 8-Bit magnatude comparator by Texas Instruments. Package: 20-pin DIP Download Texas Instruments SN74LS682N datasheet: Status: NOS (New Old Stock) Individually tested components: YES RoHS compliant: n..
£2.10 £1.25
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-18 %
Brand: Motorola
Model: 74LS685 (SN74LS685N) Magnitude Comparator - Motorola
SN74LS685N 8-Bit Magnitude Comparator by Motorola. Package: 20-pin DIP Download Motorola SN74LS685N datasheet: Status: NOS (New Old Stock) Individually tested components: YES RoHS compliant: no &nbs..
£4.28 £3.50
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Brand: STMicroelectronics
Model: 74HC688 (M74HC688B1) 8-bit equality comparator - STM
M74HC688B1 8-bit equality comparator by STMicroelectronics. Package: 20-pin DIP Download STMicroelectronics M74HC688B1 datasheet: Status: NOS (New Old Stock) Individually tested Components: YES RoHS com..
£1.20
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Out Of Stock
Brand: National Semiconductor
Model: 74HC688 (MM74HC688N) equality comparator - National
MM74HC688N 8-bit equality comparator by National Semiconductor. Package: 20-pin DIP Download National Semiconductor MM74HC688N .pdf datasheet: Dual topside markings : MM74HC688N / MC74HC688N Status: NOS (New Old Stock) ..
£1.20
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Brand: TOSHIBA
Model: 74HC688 (TC74HC688AP) 8-bit equality comparator - Toshiba
TC74HC688AP 8-bit equality comparator by Toshiba. Package: 20-pin DIP Download Toshiba TC74HC688AP datasheet: Status: NOS (New Old Stock) Individually tested Components: YES RoHS compliant: no..
£1.20
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-34 %
Out Of Stock
Brand: Harris Semiconductor
Model: 74HCT688 (CD74HCT688E) 8-bit equality comparator - Harris
CD74HCT688E 8-bit equality comparator by Harris Semiconductor. Package: 20-pin DIP Download Harris CD74HCT688E datasheet: Status: NOS (New Old Stock) Individually tested Components: YES RoHS Compliant: no
..
£0.91 £0.60
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-50 %
Out Of Stock
Brand: STMicroelectronics
Model: M74HCT688N 8-bit equality comparator - STMicroelectronics
M74HCT688N 8-bit equality comparator by STMicroelectronics. Package: 20-pin DIP Download STMicroelectronics M74HCT688N datasheet: Status: NOS (New Old Stock) Individually tested Components: YES RoHS Compliant: tbc&n..
£1.20 £0.60
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HOT
-34 %
Out Of Stock
Brand: National Semiconductor
Model: 74HCT688 (MM74HCT688N) 8-bit equality comparator - National
MM74HCT688N 8-bit equality comparator by National Semiconductor. Package: 20-pin DIP Download National Semiconductor MM74HCT688N .pdf datasheet: Status: NOS (New Old Stock) Individually tested Components: YES &nbs..
£0.91 £0.60
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-50 %
Out Of Stock
Brand: Philips Electronics
Model: 74HCT688 (PC74HCT688P) 8-bit equality comparator - Philips
PC74HCT688P 8-bit equality comparator by Philips. Package: 20-pin DIP Download Philips PC74HCT688P datasheet: Status: NOS (New Old Stock) Individually tested Components: YES RoHS Compliant: tbc
..
£1.20 £0.60
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-40 %
Brand: Motorola
Model: 74LS688 (SN74LS688N) 8-Bit magnatude comparator - Motorola
SN74LS688N 8-Bit magnatude comparator by Motorola. Package: 20-pin DIP Download Motorola SN74LS688N datasheet: Status: NOS (New Old Stock) Individually tested components: YES RoHS compliant: no ..
£2.10 £1.25
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-40 %
Brand: Texas Instruments
Model: 74LS688 (SN74LS688N) 8-Bit magnatude comparator-Texas
SN74LS688N 8-Bit magnatude comparator by Texas Instruments. Package: 20-pin DIP Download Texas Instruments SN74LS688N datasheet: Status: NOS (New Old Stock) Individually tested components: YES RoHS compliant: n..
£2.10 £1.25