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N74S189N Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
N74S189NSIGNETIC100Yes

N74S189N** is a **64-bit random access memory (RAM)** integrated circuit manufactured by **Signetics**.

The N74S189N is a 64-bit random access memory (RAM) integrated circuit manufactured by Signetics.

Specifications:

  • Type: 64-bit (16 x 4) TTL RAM
  • Technology: Schottky TTL (S-series)
  • Organization: 16 words x 4 bits
  • Access Time: Typically 35 ns
  • Power Supply: +5V DC
  • Operating Temperature Range: 0°C to +70°C
  • Package: 16-pin DIP (Dual In-line Package)
  • Logic Family: 74S (Schottky TTL)

Features:

  • Fully decoded memory array
  • Three-state outputs for bus-oriented applications
  • Schottky-clamped for high-speed performance
  • TTL-compatible inputs and outputs
  • Non-destructive read operation
  • Single +5V power supply

Applications:

  • Microprocessor systems
  • Buffer storage
  • Data logging
  • Small-scale memory expansion

This IC was commonly used in early computing and digital systems for fast, small-capacity memory storage.

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