7164L20YGI

Overview

The Renesas Electronics Corporation 7164L20YGI is a 64Kbit (8K x 8) asynchronous static random-access memory (SRAM) IC. It features a parallel interface with a maximum access time of 20 ns and a write cycle time of 20 ns. The device operates on a single 5V power supply within the range of 4.5V to 5.5V. It is housed in a 28-lead Small Outline J-Lead (SOJ) package, measuring 0.300 inches (7.62mm) in width. The component supports surface mount installation and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Asynchronous SRAM technology providing fast data access without clock synchronization requirements
• Parallel interface architecture supporting standard digital logic connections
• Industrial-grade operational capability ensuring stability across wide temperature variations

Applications

• Industrial control systems requiring reliable volatile memory storage
• Embedded applications utilizing 5V logic families
• Equipment operating in harsh environmental conditions

Procurement Notes

This component has reached End-of-Life status, as confirmed by Product Change Notices regarding discontinuation. Verification of authenticity is critical when sourcing from secondary markets due to limited availability. Buyers must confirm the specific suffix 'YGI' matches the required 28-SOJ package and lead-free specifications. Ensure compatibility with existing board layouts before procurement.

Selection Notes

Select this part for designs requiring 64Kbit capacity with 20ns speed in a 28-pin SOJ form factor. Verify that the system voltage remains strictly between 4.5V and 5.5V. Confirm that the PCB footprint accommodates the 7.62mm width. Consider alternative packages if surface-mount constraints differ or if lower power consumption is needed.

Part Context

The 7164L series represents a family of high-speed CMOS static RAMs manufactured by Renesas Electronics. This specific model belongs to the asynchronous SRAM category, designed for general-purpose memory applications. The 'L' designation typically indicates commercial/industrial temperature grades, while the '20' denotes the 20 nanosecond access speed characteristic.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the End-of-Life status, direct pin-to-pin replacements may require careful verification of electrical parameters and physical dimensions against the original design specifications.