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HomeProductsIntegrated Circuits (ICs)Logic - ComparatorsSN74HC688N
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SN74HC688N - Texas Instruments

Manufacturer Part Number
SN74HC688N
Manufacturer
Texas Instruments
Allelco Part Number
32D-SN74HC688N
ECAD Model
Parts Description
IC COMPARATOR IDENTITY 8B 20DIP
Package
20-DIP (0.300', 7.62mm)
Data sheet
SN54HC688, SN74HC688.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 53850

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Specifications

SN74HC688N Tech Specifications
Texas Instruments - SN74HC688N technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - SN74HC688N

Product Attribute Attribute Value  
Manufacturer Texas Instruments  
Voltage - Supply 2V ~ 6V  
Type Identity Comparator  
Supplier Device Package 20-PDIP  
Series 74HC  
Package / Case 20-DIP (0.300', 7.62mm)  
Package Tube  
Output Function A=B  
Product Attribute Attribute Value  
Output Active Low  
Operating Temperature -40°C ~ 85°C  
Number of Bits 8  
Mounting Type Through Hole  
Max Propagation Delay @ V, Max CL 36ns @ 6V, 50pF  
Current - Quiescent (Iq) 8 µA  
Current - Output High, Low 5.2mA, 5.2mA  
Base Product Number 74HC688  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

SN74HC688N

Manufacturer

Texas Instruments

Introduction

An 8-bit identity comparator designed for logic-level systems.

Product Features and Performance

8-bit binary comparison

Active Low output

Compatible with 74HC logic level systems

Product Advantages

High precision differentiation between two 8-bit words

Low power consumption with 8 µA quiescent current

Key Technical Parameters

Type: Identity Comparator

Number of Bits: 8

Output Function: A=B

Voltage - Supply Range: 2V to 6V

Current - Output High, Low: 5.2mA

Max Propagation Delay: 36ns at 6V, 50pF load

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Tested for reliable operation within specified temperature ranges

Compatibility

Compatible with multiple microcontrollers and digital systems requiring logic comparison

Application Areas

Data processing systems

Error checking and management circuits

General digital logic environments

Product Lifecycle

Active status

Not nearing discontinuation

Replacement and upgrade options available

Several Key Reasons to Choose This Product

Reliable operating temperature range for diverse environments

Direct compatibility with other 74HC series logic components

Low propagation delay for faster processing speeds

Ideal for system design requiring precise comparison checks

Through-hole package easy to mount on standard PCBs

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments SN74HC688N

Product Attribute SN74HC688N SN74HC688DW SN74HC688DWR SN74HC684DWR
Part Number SN74HC688N SN74HC688DW SN74HC688DWR SN74HC684DWR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Supplier Device Package 20-PDIP 20-SOIC 20-SOIC 20-SOIC
Series 74HC 74HC 74HC 74HC
Output Function A=B A=B A=B A=B, A>B
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Type Identity Comparator Identity Comparator Identity Comparator Magnitude Comparator
Package / Case 20-DIP (0.300', 7.62mm) 20-SOIC (0.295', 7.50mm Width) 20-SOIC (0.295", 7.50mm Width) 20-SOIC (0.295", 7.50mm Width)
Base Product Number 74HC688 74HC688 74HC688 74HC684
Max Propagation Delay @ V, Max CL 36ns @ 6V, 50pF 36ns @ 6V, 50pF 36ns @ 6V, 50pF 47ns @ 6V, 50pF
Number of Bits 8 8 8 8
Current - Output High, Low 5.2mA, 5.2mA 5.2mA, 5.2mA 5.2mA, 5.2mA 5.2mA, 5.2mA
Package Tube Tube Tape & Reel (TR) Tape & Reel (TR)
Mounting Type Through Hole Surface Mount Surface Mount Surface Mount
Voltage - Supply 2V ~ 6V 2V ~ 6V 2V ~ 6V 2V ~ 6V
Current - Quiescent (Iq) 8 µA 8 µA 8 µA -
Output Active Low Active Low Active Low Active Low

SN74HC688N Datasheet PDF

Download SN74HC688N pdf datasheets and Texas Instruments documentation for SN74HC688N - Texas Instruments.

Datasheets
SN54HC688, SN74HC688.pdf
PCN Design/Specification
Material Set 30/Mar/2017.pdf CD74HC573x/SN74HCTx 11/May/2022.pdf
PCN Assembly/Origin
2.73KHz.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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SN74HC688N

Texas Instruments
32D-SN74HC688N

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