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Renesas Electronics 74FCT521ATSOG, 8-Bit CMOS, TTL, 20-Pin

RS Stock No.:: 254-4982
Mfr. Part No.:: 74FCT521ATSOG
Manufacturer:: Renesas Electronics

Renesas Electronics 74FCT521ATSOG, 8-Bit CMOS, TTL, 20-Pin

This image is representative of the product range

Bulk discount available

Subtotal (1 pack of 5 units)*

SGD20.27

(exc. GST)

SGD22.095

(inc. GST)

Add 45 units to get free delivery

Orders below SGD150.00 (exc. GST) cost SGD25.00.

In Stock

Plus 275 unit(s) shipping from 16 February 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit	Per Pack*
5 - 5	SGD4.054	SGD20.27
10 - 20	SGD3.658	SGD18.29
25 - 105	SGD3.452	SGD17.26
110 +	SGD3.384	SGD16.92

*price indicative

RS Stock No.:: 254-4982
Mfr. Part No.:: 74FCT521ATSOG
Manufacturer:: Renesas Electronics

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Renesas Electronics
	Product Type	Comparator
	Logic Family	CMOS
	Number of Bits	8
	Output Type	TTL
	Mount Type	Surface
	Minimum Supply Voltage	4.75V
	Pin Count	20
	Maximum Supply Voltage	5.25V
	Maximum High Level Output Current	15mA
	Logic Comparator Type	Comparator
	Maximum Low Level Output Current	48mA
	Minimum Operating Temperature	-40°C
	Maximum Propagation Delay Time @ CL	7.2ns
	Maximum Operating Temperature	85°C
	Standards/Approvals	JEDEC standard 18
	Series	74FCT
	Automotive Standard	No

	Select all
	Brand Renesas Electronics
	Product Type Comparator
	Logic Family CMOS
	Number of Bits 8
	Output Type TTL
	Mount Type Surface
	Minimum Supply Voltage 4.75V
	Pin Count 20
	Maximum Supply Voltage 5.25V
	Maximum High Level Output Current 15mA
	Logic Comparator Type Comparator
	Maximum Low Level Output Current 48mA
	Minimum Operating Temperature -40°C
	Maximum Propagation Delay Time @ CL 7.2ns
	Maximum Operating Temperature 85°C
	Standards/Approvals JEDEC standard 18
	Series 74FCT
	Automotive Standard No

Datasheet - 74FCT521ATSOG

The Renesas Electronics 8-bit identity comparator built using an Advanced dual metal CMOS technology. These devices compare two words of up to eight bits each and provide a low output when the two words match bit for bit. The expansion input IA = B also serves as an Active low enable input.

A and C grades

Low input and output leakage ≤ 1 μA (max.)

CMOS power levels

High drive outputs (-15 mA IOH, 48 mA IOL)

Meets or exceeds JEDEC standard 18 specifications

Power off disable outputs permit "live insertion"

Available in SOIC and QSOP packages

Renesas Electronics 74FCT521ATSOG, 8-Bit CMOS, TTL, 20-Pin

Add 45 units to get free delivery

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