SN74HC688DW

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SN74HC688DW

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IC COMPARATOR IDENTITY 8B 20SOIC

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規格

屬性 價值
Package Bulk,Tube
Series 74HC
ProductStatus Active
Type Identity Comparator
NumberofBits 8
Output Active Low
OutputFunction A=B
Voltage-Supply 2V ~ 6V
Current-OutputHighLow 5.2mA, 5.2mA
MaxPropagationDelay@VMaxCL 36ns @ 6V, 50pF
Current-Quiescent(Iq) 8 µA
OperatingTemperature -40°C ~ 85°C
Package/Case 20-SOIC (0.295, 7.50mm Width)
SupplierDevicePackage 20-SOIC

概述

Description

The SN74HC688DW is an integrated circuit from Texas Instruments, belonging to the 74HC series of high-speed CMOS logic devices. It functions as an 8-bit magnitude comparator, designed to compare two 8-bit binary or BCD numbers. The device outputs a low signal when the two inputs are equal, enabling it to be used in digital systems for equality comparison tasks.
Key features include compatibility with TTL systems, low power consumption due to CMOS technology, and operation at a wide range of voltage levels, typically 2V to 6V. The SN74HC688DW is housed in a SOIC-20 package, making it suitable for surface-mount technology (SMT) applications. This comparator is often used in digital systems where efficient data comparison is required, such as arithmetic operations, memory address decoding, and data sorting algorithms. Overall, the SN74HC688DW provides a reliable and versatile solution for equality comparison in various electronic applications.

Equivalent

The SN74HC688DW is an 8-bit magnitude comparator. Equivalent products include:
1. NTE74HC688 by NTE Electronics
2. CD74HC688 by Texas Instruments
3. MC74HC688A by ON Semiconductor
4. TC74HC688 by Toshiba
5. HD74HC688 by Renesas
These alternatives offer similar functionality and can be used in applications requiring 8-bit comparison. Always verify specifications and pin compatibility before substituting components.

Pinout

The SN74HC688DW is a 20-pin IC that functions as an 8-bit magnitude comparator. This device is used to compare two 8-bit binary values and outputs a signal indicating whether the two values are equal. The SN74HC688DW has the following pin configuration:
1. Pin Count: 20 pins.
2. Key Functions:
- Inputs: There are two sets of 8 input pins, labeled A0-A7 and B0-B7, which are the two binary numbers to be compared.
- Output: It has one output pin, typically labeled as "EQUAL" or "EQ", which goes low when the two 8-bit inputs are equal.
- Control Pins: Includes a "P" (active-low enable) input pin used for enabling the device.
This device is part of the 74HC series, which is known for high-speed CMOS logic with low power consumption. The SN74HC688DW is used in digital systems to facilitate equality comparison operations, making it a useful component in applications like digital data processing and memory address decoding.

Manufacturer

The SN74HC688DW is manufactured by Texas Instruments (TI). Texas Instruments is a multinational corporation headquartered in Dallas, Texas, known for designing and manufacturing semiconductors and various integrated circuits. TI is particularly renowned for its analog chips and embedded processors, which are used in a wide range of electronic devices and applications. As a leading company in the semiconductor industry, Texas Instruments serves various markets, including automotive, industrial, personal electronics, communications, and enterprise systems.

Application

The SN74HC688DW is an 8-bit magnitude comparator commonly used in digital systems for equality comparison. Its application areas include digital signal processing, microprocessor and microcontroller systems, memory address decoding, and data sorting algorithms. It is also employed in hardware-based logic circuits where efficient and fast comparison of binary numbers is required. Additionally, it finds use in networking equipment for address comparison, and in control systems where precise digital input comparisons are necessary for decision-making processes. The device is valued for its speed, low power consumption, and versatility in various digital circuit designs.

Package

The SN74HC688DW is a digital logic device from Texas Instruments, and it comes in a SOIC (Small Outline Integrated Circuit) package type.

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