74HCT688N,652 The 74HCT688N,652 is an 8-bit magnitude comparator from NXP Semiconductors. It features a propagation delay of 34ns and operates within a voltage range of 4.5V to 5.5V.
Mfr Part #:

74HCT688N,652

Available from 1 distributors
Mfr Name: NXP Semiconductors
NXP Semiconductors
The 74HCT688N,652 is an 8-bit magnitude comparator from NXP Semiconductors. It features a propagation delay of 34ns and operates within a voltage range of 4.5V to 5.5V.
Total Stock: 1 pcs
$ Price Range: $0.50

74HCT688N,652 Available from 1 distributor

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74HCT688N,652 Specifications Quick View

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

74HCT688N,652 Description

Short technical summary and product information.

The 74HCT688N,652 is a high-speed Si-gate CMOS 8-bit magnitude comparator manufactured by NXP Semiconductors. This device is designed to compare two 8-bit binary or BCD words, providing an output indicating equality (P = Q). It is pin compatible with low power Schottky TTL (LSTTL) and specified in compliance with JEDEC standard no. 7A.

 

Key electrical characteristics include an operating voltage range of 4.5V to 5.5V and a typical operating current of 8 µA. The maximum propagation delay is 34ns at 4.5V with a 50pF load. The output capability is standard, and the output type is active low.

 

This comparator is housed in a 20-DIP (0.300", 7.62mm) package, suitable for through-hole mounting. The operating temperature range is from -40°C to 125°C. The datasheet also specifies typical values for input capacitance at 3.5pF and power dissipation capacitance at 30pF.

 

Additional specifications from the datasheet include typical propagation delays of 7ns for Pn, Qn to P=Q and 8-12ns for E to P=Q, both measured at VCC = 5V and CL = 15pF.

74HCT688N,652 Quick Information

Product Type: Comparator
Series: 74HCT
Canonical Name: 74HCT688N,652 8-bit magnitude comparator
Subcategory: Magnitude Comparator

74HCT688N,652 Compliance

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

74HCT688N,652 Estimated Pricing

Qty Low High
1+ $0.50 $0.50

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

74HCT688N,652 Features

  • Compares two 8-bit words.
  • Active low output indicates equality.
  • Operates from 4.5V to 5.5V.
  • 34ns maximum propagation delay.
  • 20-DIP through-hole package.

74HCT688N,652 Applications

  • Digital logic circuit design.
  • Binary and BCD word comparison.
  • Control system implementation.
  • Embedded system integration.

74HCT688N,652 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the 74HCT688N,652?

The operating voltage range is 4.5V to 5.5V.

What package does the 74HCT688N,652 come in?

It comes in a 20-DIP (0.300", 7.62mm) package for through-hole mounting.

What is the operating temperature range?

The operating temperature range is -40°C to 125°C.

What is the propagation delay of the comparator?

Maximum propagation delay is 34ns at 4.5V and 50pF load; typical delay from inputs to output is 7ns at 5V and 15pF.

What is the output type of the 74HCT688N,652?

The output is active low.

How many bits does the comparator handle?

It is an 8-bit identity comparator.

What is the mounting type for this device?

Through hole mounting.

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