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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Brand: National Semiconductor
Model: 74LS139N (DM74LS139N) Decoder-Demultiplexer - National
DM74LS139N Decoder-Demultiplexer by National Semiconductor. Package: 16-pin DIP Download National Semiconductor DM74LS139N datasheet: Status: Perfect NOS (New Old Stock) Individually tested components: YES RoHS compliant: ..
£0.79
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Brand: SIGNETICS
Model: 74LS139N Decoder-Demultiplexer - Signetics
74LS139N Decoder-Demultiplexe by Signetics. Package: 16-pin DIP Download National Semiconductor DM74LS139N datasheet: Status: NOS (New Old Stock) Tested components: YES RoHS compliant: no
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£0.79
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-31 %
Brand: Fairchild Semiconductor
Model: 74S139 (74S139PC) Decoder-Demultiplexer - Fairchild
74S139PC Decoder-Demultiplexer in a 16 pin DIP package by Fairchild Semiconductor. Download Fairchild 74S139N datasheet: Status: NOS (New Old Stock) Tested Components: YES RoHS compliant: no
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£2.18 £1.50
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-31 %
Brand: Texas Instruments
Model: 74S139 (SN74S139AN) Decoder-Demultiplexer - Texas Instruments
SN74S139AN Decoder-Demultiplexer in a 16 pin DIP package by Texas Instruments. Download Texas Instruments SN74S139AN datasheet: Status: NOS (New Old Stock) Tested Components: YES RoHS compliant: no ..
£2.18 £1.50
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HOT
-31 %
Brand: Texas Instruments
Model: 74S139 (SN74S139N) Decoder-Demultiplexer - Texas Instruments
SN74S139AN Decoder-Demultiplexer by Texas Instruments. Package: 16-pin DIP Download Texas Instruments SN74S139N datasheet: Status: NOS (New Old Stock) Tested Components: YES RoHS compliant: n..
£2.18 £1.50
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-20 %
Brand: National Semiconductor
Model: 74145 (DM74145N) BCD-Decimal decoder / drivers - National
DM74145N BCD-Decimal decoder / drivers by National Semiconductor. Package: 16-pin DIP Download National Semiconductor DM74145N datasheet: Status: NOS (New Old Stock) Tested Components: YES RoHS Compliant: no &nbs..
£2.50 £2.00
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-50 %
Out Of Stock
Brand: Texas Instruments
Model: 74LS145 (SN74LS145N) BCD-Decimal decoder / drivers - Texas
SN74LS145N BCD-Decimal decoder / drivers by Texas Instruments. Package: 16-pin DIP Download Texas Instruments SN74LS145N datasheet: StatusL: NOS (New Old Stock) Tested Components: YES RoHS Compliant: no
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£0.80 £0.40
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Brand: SIGNETICS
Model: 74147 (74147N) priority encoder - Signetics
74147N priority encoder in a 16 pin DIP package by Signetics. Download Signetics 74147N datasheet: Status: NOS (New Old Stock) Tested Components: YES RoHS Compliant: no ..
£2.50
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Brand: National Semiconductor
Model: 74147 (DM74147N) priority encoder - National Semiconductor
DM74147N priority encoder by National Semiconductor. Package: 16-pin DIP Download National Semiconductor DM74147N datasheet: Status: NOS (New Old Stock) Individually tested Components: YES RoHS Compliant: no
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£2.50
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Brand: Texas Instruments
Model: 74147 (SN74147N) priority encoder - Texas Instruments
SN74147N priority encoder in a 16 pin DIP package by Texas Instruments. Download Texas Instruments SN74147N datasheet: Status: NOS (New Old Stock) Tested Components: YES RoHS Compliant: no
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£2.50
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-32 %
Brand: Harris Semiconductor
Model: 74HCT147 (CD74HCT147E) priority encoder - Harris Semiconductor
CD74HCT147E CMOS priority encoder by Harris Semiconductor. Package: 16-pin DIP Download Harris Semiconductor CD74HCT147E datasheet: Status: NOS (New Old Stock) Individually tested Components: YES RoHS Compliant: no &..
£0.37 £0.25
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-50 %
Brand: HITACHI
Model: 74LS148 (HD74LS148P) priority encoder - Hitachi
HD74LS148P priority encoder by Hitachi. Package: 16-pin DIP Download Hitachi HD74LS148P datasheet: Status: NOS (New Old Stock) Individually Tested components: YES RoHS compliant: no
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£1.39 £0.69