71V124SA12PHGI

Overview

The Renesas 71V124SA12PHGI is a 3.3V CMOS static random-access memory organized as 128K x 8, providing a total capacity of 1Mb. It features asynchronous parallel interface with a maximum access time of 12 ns. The device operates on a single 3.3V supply within a voltage range of 3V to 3.6V and supports an industrial temperature range of -40°C to 85°C. It utilizes LVTTL-compatible bidirectional I/Os and employs JEDEC center power/GND pinout in a 32-TSOP II package to reduce noise.

Feature Summary

• Utilizes fully static asynchronous circuitry requiring no clocks or refresh cycles for operation.
• Incorporates JEDEC center power and ground pinout architecture to minimize noise generation and enhance system performance.
• Features LVTTL-compatible bidirectional inputs and outputs for direct interfacing with standard logic families.

Applications

• Data buffering in high-speed digital systems
• Cache memory implementation in embedded controllers
• Industrial equipment real-time data storage

Procurement Notes

Verify the specific suffix PHGI confirms the 32-TSOP II package and industrial temperature grade (-40°C to 85°C). Confirm RoHS compliance status as documentation indicates variations across the 71V124 family. Ensure lead-free specifications match project requirements before finalizing procurement orders.

Selection Notes

Select this component when a 12 ns access speed and 3.3V operation are required for asynchronous SRAM applications. The 128K x 8 organization suits systems needing moderate density with low power consumption. Verify that the TSOP II footprint fits the PCB layout constraints compared to alternative packages like SOJ or TSOP.

Part Context

This part belongs to the Renesas 71V124 series of 3.3V CMOS SRAMs. It shares architectural similarities with other variants such as the 71V124SA10PHGI and 71V124SA15TYI, differing primarily in access speed and package type. The series is designed for general-purpose memory applications requiring reliable static storage without refresh overhead.

Replacement Considerations

The 71V124SA12TYGI is listed as a manufacturer-recommended replacement. Verify that the TYGI suffix corresponds to the same TSOP II package and electrical characteristics. Cross-reference datasheets to ensure pin compatibility and timing parameters meet design specifications.