TMS45165-70DZR — Texas Instruments — Memory ICs — product image
Texas Instruments

TMS45165-70DZR – 70ns Fast Page Mode DRAM Chip

Memory ICs · Texas Instruments

MPNTMS45165-70DZR

70ns Access Time – Optimized for fast read/write operations in high-performance systems. 256K x 16-Bit Organization – Balances memory density with efficient data handling. 5V Single Supply Voltage – Compatible with legacy industrial and embedded devices.

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Product Overview

A closer look at TMS45165-70DZR as a memory ics: functional summary, usage notes, and the features that matter in real designs.

  • 70ns Access Time – Optimized for fast read/write operations in high-performance systems.
  • 256K x 16-Bit Organization – Balances memory density with efficient data handling.
  • 5V Single Supply Voltage – Compatible with legacy industrial and embedded devices.

TMS45165-70DZR 262144-WORD BY 16-BIT HIGH-SPEED DYNAMIC RANDOM-ACCESS MEMORIES ICs

The TMS45165-70DZR is a Fast Page Mode (FPM) DRAM chip manufactured by Texas Instruments, designed for high-speed, low-latency memory access in industrial computing, embedded systems, and retro computing applications. With a 70ns access time, this DRAM delivers reliable performance in legacy systems requiring consistent data throughput.

Technical Specifications

      • Memory Organization: 256K x 16-bit
      • Access Time: 70ns
      • Operating Voltage: 5V ±10%
      • Package: 40-pin DIP (Dual In-Line Package)
      • Refresh Cycles: 512 cycles every 8ms
      • Operating Temperature: 0°C to 70°C

Applications

      • Industrial Control Systems – Stable memory performance for PLCs and automation.
      • Retro Computing/Arcade Boards – Used in classic gaming and vintage computers.
      • Telecommunications Equipment – Reliable data buffering in legacy networking hardware.

Performance Benefits

      • Page Mode Efficiency: Reduces latency during sequential memory access.
      • Low Power Consumption: Ideal for energy-sensitive embedded designs.
      • Long-Term Reliability: TI’s manufacturing ensures durability in harsh environments.

Design Considerations

      • Decoupling Capacitors: Required near VCC/GND pins for stable operation.
      • Refresh Management: Needs periodic refresh cycles (CAS-before-RAS support).
      • Compatibility: Works best with 5V TTL logic systems (check datasheet for interfacing).

Why Choose TMS45165-70DZR?

      • Trusted Brand: Texas Instruments ensures high-quality silicon.
      • Legacy Support: Perfect for repairing/maintaining older systems.
      • Proven Durability: Used in aerospace, medical, and military applications historically.

Availability & Support

    • Obsolete (Not Recommended for New Designs) – Available via specialty distributors.

Design Resources

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Frequently Asked Questions

3 practical questions buyers ask about TMS45165-70DZR — availability, specs, and how to request a quote.

What is TMS45165-70DZR?

70ns Access Time – Optimized for fast read/write operations in high-performance systems. 256K x 16-Bit Organization – Balances memory density with efficient data handling. 5V Single Supply Voltage – Compatible with legacy industrial and embedded devices.

What type of component is TMS45165-70DZR?

TMS45165-70DZR is a Memory ICs from Texas Instruments.

Is TMS45165-70DZR in stock at MOZ Electronics?

TMS45165-70DZR is listed as in stock. Order online when a price is shown, or submit an RFQ for volume pricing and lead time.

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