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74HC688AP Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
74HC688APTOS136Yes

74HC688AP** is a high-speed CMOS 8-bit magnitude comparator manufactured by **Toshiba (TOS)**.

The 74HC688AP is a high-speed CMOS 8-bit magnitude comparator manufactured by Toshiba (TOS).

Key Specifications:

  • Logic Family: 74HC (High-Speed CMOS)
  • Function: 8-bit magnitude comparator with enable
  • Operating Voltage: 2V to 6V
  • High-Level Input Voltage (VIH): 3.15V (min) at VCC = 4.5V
  • Low-Level Input Voltage (VIL): 1.35V (max) at VCC = 4.5V
  • Output Current (IOH/IOL): ±5.2mA at VCC = 4.5V
  • Propagation Delay: 18ns (typical) at VCC = 4.5V
  • Package Type: DIP-20 (Plastic Dual In-line Package)
  • Operating Temperature Range: -40°C to +85°C

Description:

The 74HC688AP compares two 8-bit binary numbers (A and B) and provides an active-low output (P=Q) when they are equal. It includes an enable input (G) for control functionality.

Features:

  • High-Speed Operation: Suitable for fast digital systems.
  • Low Power Consumption: CMOS technology ensures low power dissipation.
  • Wide Operating Voltage Range: Compatible with 2V to 6V systems.
  • TTL-Compatible Inputs: Works with TTL logic levels.
  • Output Drive Capability: Can drive up to 10 LSTTL loads.
  • Pin-Compatible with 74LS688: Direct replacement in many applications.

This IC is commonly used in arithmetic circuits, microprocessors, and digital control systems.

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