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SN74ALS521NSR The SN74ALS521NSR is an 8-bit identity comparator from Texas Instruments. It compares two 8-bit binary or BCD words and provides P=Q\ outputs.
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SN74ALS521NSR

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The SN74ALS521NSR is an 8-bit identity comparator from Texas Instruments. It compares two 8-bit binary or BCD words and provides P=Q\ outputs.
✓ Total Stock: 1,799 pcs
$ Price Range: $1.38

SN74ALS521NSR Available from 1 distributor

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✓ Non-Authorised
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PROSOFT ELECTRONICS ✓
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1,799 pcs
On Request
1799 pcs On Request 1 On Request On Request 00+ On Request On Request
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SN74ALS521NSR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Max Propagation Delay @ V, Max CL
Mounting Type
Number of Bits
Operating Temperature
Output
Output Function
Supplier Device Package
Supplier Package
Type
Voltage
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SN74ALS521NSR Description

Short technical summary and product information.

The Texas Instruments SN74ALS521NSR is an 8-bit identity comparator designed for comparing two 8-bit binary or BCD words. This device provides P=Q\ outputs and operates within 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 typical current draw of 2.6mA and a maximum of 24mA. The operating temperature range is specified from 0°C to 70°C.

 

This comparator is available in a 20-SOIC surface mount package. It is suitable for applications requiring precise comparison of 8-bit data words in digital systems.

SN74ALS521NSR Quick Information

Product Type: Identity Comparator
Series: SN74ALS521
Canonical Name: SN74ALS521NSR 8-Bit Identity Comparator
Subcategory: Comparators

SN74ALS521NSR Compliance

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

SN74ALS521NSR Estimated Pricing

Qty Low High
1+ $1.38 $1.38

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

SN74ALS521NSR Features

  • 8-bit identity comparator
  • Compares two 8-bit words
  • Active low P=Q\ outputs
  • 20ns maximum propagation delay
  • 0°C to 70°C operating temperature

SN74ALS521NSR Applications

  • Used in memory address comparison circuits.
  • Ideal for data bus monitoring systems.
  • Suitable for alarm detection in logic systems.
  • Applicable to byte comparison in microprocessor designs.

SN74ALS521NSR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SN74ALS521NSR?

4.5V to 5.5V.

What is the package type of the SN74ALS521NSR?

20-SOIC (0.209", 5.30mm Width).

What is the operating temperature range of the SN74ALS521NSR?

0°C to 70°C.

How many bits does the SN74ALS521NSR comparator handle?

8 bits.

What is the output function of the SN74ALS521NSR?

A=B, active low output.

What is the propagation delay of the SN74ALS521NSR?

Maximum 20ns at 5V, 50pF.

What are the current ratings for the SN74ALS521NSR?

Typical supply current 2.6mA, output sink current up to 24mA.

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