7164L70TDB

Overview

The Renesas Electronics Corporation 7164L70TDB is a static random access memory (SRAM) component manufactured using BICMOS technology. It provides a storage capacity of 64 kbit, organized as 8K words by 8 bits. The device features an asynchronous parallel interface with a maximum access time of 70 ns. It operates within a supply voltage range of 4.5 V to 5.5 V and draws a maximum power supply current of 90 mA. The component supports single data rate (SDR) operations and is designed for through-hole installation in a CDIP-28 package. It functions reliably across an extended industrial temperature range from -55°C to +125°C.

Feature Summary

• Asynchronous parallel SRAM architecture utilizing BICMOS process technology
• Extended industrial operating temperature range supporting high thermal stability
• Single data rate memory organization optimized for standard logic interfaces

Applications

• Industrial control systems requiring robust memory under extreme temperatures
• Automotive embedded applications needing wide thermal tolerance
• High-reliability equipment where through-hole mounting is specified

Procurement Notes

Verify component authenticity and datasheet alignment due to discontinued status. Confirm RoHS compliance requirements as the product may not meet current environmental standards. Check for availability of legacy stock or authorized distributors. Ensure replacement strategies account for potential obsolescence risks in long-term production cycles.

Selection Notes

Select this part when a 64 Kbit asynchronous SRAM with through-hole packaging is required. Consider the 70 ns access speed and 5V operation limits. Evaluate the CDIP-28 footprint against PCB layout constraints. Compare performance against other 7164 series variants if different access times or packages are needed.

Part Context

This component belongs to the 7164L70 series of static RAMs produced by Renesas Electronics. It shares architectural similarities with other parts in the family but is distinguished by its specific 70 ns access time and CDIP-28 package configuration. The series targets applications demanding reliable data retention and fast read/write cycles in harsh environments.

Replacement Considerations

Public confirmed substitute part numbers include IDT7164L70TDB.