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74LS603 Memory Refresh Controllers IC (74603) DIP-20 Package

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Description

The 74LS603 is a memory refresh controller IC designed to generate refresh cycles for dynamic RAM (DRAM) memory systems. It ensures that DRAM cells are periodically refreshed to retain their data, preventing data loss due to charge leakage. The IC provides timing and control signals necessary for proper memory refresh operations, simplifying the implementation of refresh logic in DRAM systems.

Features

  • Refresh Controller: Generates refresh cycles for DRAM memory.
  • Timing Signals: Provides the necessary timing signals to control the refresh process.
  • Programmable Refresh Rate: Allows adjustment of the refresh rate to suit different memory systems.
  • TTL-Compatible Inputs/Outputs: Compatible with standard TTL logic levels.
  • Low Power Consumption: Designed with Schottky transistor technology for reduced power usage.
  • Fast Operation: Ensures timely generation of refresh cycles.

Specifications

  • Logic family: 74LS (Low Power Schottky TTL).
  • Number of pins: 20.
  • Package type: DIP-20 (Dual In-line Package with 20 pins).
  • Supply voltage (Vcc): 4.75V to 5.25V.
  • Input voltage: TTL level inputs.
  • Output current: Typically sinks up to 16mA per output.
  • Propagation delay: Typically 22ns.
  • Power consumption: Low due to Schottky technology.
  • Operating temperature range: 0°C to 70°C.

Note

* Product Images are shown for illustrative purposes only and may differ from actual product

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