7164S45TPG

Memory IC Overview

The Renesas Electronics Corporation 7164S45TPG is a CMOS Static RAM IC with a storage capacity of 64Kbit, organized as 8K x 8 bits. It features an asynchronous parallel interface with a maximum access time of 45 ns and a write cycle time of 45 ns. The device operates on a single 5V supply voltage ranging from 4.5V to 5.5V. It is housed in a 28-PDIP (0.300 inch, 7.62mm) package designed for through-hole mounting. The component supports a commercial operating temperature range of 0°C to +70°C.

Memory IC Feature Summary

• Asynchronous parallel memory architecture for direct system integration
• CMOS technology ensuring low power consumption
• Through-hole 28-pin DIP packaging for standard board mounting

Memory IC Applications

• Industrial control systems requiring volatile data retention
• Embedded applications utilizing 5V logic interfaces
• Legacy hardware maintenance and replacement scenarios

Memory IC Procurement Notes

Verify the specific suffix 'TPG' against official Renesas documentation to confirm pinout compatibility and RoHS status. Confirm that the 45ns speed grade meets system timing requirements. Check current lifecycle status as older SRAM variants may be discontinued or subject to last-time buys. Ensure the 28-PDIP package aligns with existing PCB footprints.

Memory IC Selection Notes

Select this component when a 64Kbit parallel SRAM with 5V operation is required. The 45ns access time suits moderate-speed asynchronous applications. Consider the 28-PDIP form factor if through-hole assembly is necessary. Compare against faster variants like the 20ns or 25ns models if system latency permits, or slower variants if cost reduction is prioritized over speed.

Memory IC Part Context

This part belongs to the 7164 series of static random-access memories manufactured by Renesas Electronics. The series typically offers various speed grades and package options to accommodate different design constraints. The 7164S45TPG specifically denotes the 45 nanosecond access time variant within the parallel interface family, providing a balance between performance and ease of integration in standard digital circuits.

Memory IC Replacement Considerations

Direct substitutes include other 7164 series parts with identical pinouts but different speeds, such as the 7164S20TPG or 7164L20TPG, provided timing budgets allow. Verify that any replacement maintains the same 5V supply requirement and 28-PDIP package dimensions to ensure mechanical fit.