SN74ALS521DW The SN74ALS521DW from Texas Instruments is an 8-bit identity comparator. It operates within a voltage range of 4.5V to 5.5V and has an operating temperature of 0°C to 70°C.
Mfr Part #:

SN74ALS521DW

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The SN74ALS521DW from Texas Instruments is an 8-bit identity comparator. It operates within a voltage range of 4.5V to 5.5V and has an operating temperature of 0°C to 70°C.
Total Stock: 898 pcs
$ Price Range: $1.28

SN74ALS521DW Available from 1 distributor

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SN74ALS521DW Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Lead Spacing
Lead Style
Max Propagation Delay @ V, Max CL
Mounting Type
Number of Bits
Operating Temperature
Output
Output Function
Supplier Device Package
Type
Voltage

SN74ALS521DW Description

Short technical summary and product information.

The SN74ALS521DW is an 8-bit identity comparator manufactured by Texas Instruments. This device is designed to compare two 8-bit binary or BCD words, providing P = Q\ outputs. It features an active low output and operates over a voltage range of 4.5V to 5.5V.

 

Key electrical characteristics include a maximum propagation delay of 20ns at 5V and 50pF, with a current consumption of 2.6mA and 24mA. The operating temperature range for this component is 0°C to 70°C.

 

Packaged in a 20-SOIC (0.295", 7.50mm Width) format, the SN74ALS521DW is designed for surface mount applications. It is part of the ALS technology family, offering a balance of speed and power consumption suitable for various digital logic applications.

 

This comparator is identical to the ALS688 and is suitable for applications requiring the comparison of two 8-bit words. The device offers choice of totem-pole or open-collector outputs, with the SN74ALS521 providing P = Q\ outputs.

SN74ALS521DW Quick Information

Product Type: Identity Comparator
Series: SN74ALS521
Canonical Name: SN74ALS521DW 8-Bit Identity Comparator
Subcategory: Comparators

SN74ALS521DW Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

SN74ALS521DW Estimated Pricing

Qty Low High
1+ $1.28 $1.28

Estimated market price range - modelled values for guidance only, not live distributor offers.

SN74ALS521DW Features

  • 8-bit identity comparator for word comparison.
  • Operates from 4.5V to 5.5V supply voltage.
  • Active low output with P = Q\ function.
  • 20ns maximum propagation delay.
  • Surface mount 20-SOIC package.

SN74ALS521DW Applications

  • Digital data comparison circuits.
  • BCD word comparison tasks.
  • Logic function implementation.
  • Embedded system control.

SN74ALS521DW FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SN74ALS521DW?

The operating voltage range is 4.5V to 5.5V.

What is the package type of the SN74ALS521DW?

The package is 20-SOIC (0.295", 7.50mm width).

What is the operating temperature range?

The operating temperature range is 0°C to 70°C.

What is the output type?

The output is active low, meaning the output goes low when the inputs are equal.

How many bits does the comparator handle?

It is an 8-bit identity comparator, comparing two 8-bit words.

What is the maximum propagation delay?

The maximum propagation delay is 20ns at 5V supply and 50pF load.

What is the mounting type?

Surface mount.

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