71V124SA10PHGI

Overview

The 71V124SA10PHGI is a 1-Mbit asynchronous static random-access memory (SRAM) manufactured by Renesas Electronics Corporation. It is organized as 128K words by 8 bits and operates from a single 3.3V power supply with a voltage range of 3.15V to 3.6V. The device features a 10 ns access time and utilizes LVTTL-compatible bidirectional inputs and outputs. It is housed in a 32-pin TSOP II surface-mount package with dimensions of 20.95 x 10.16 x 1.0 mm. The component supports an operating temperature range of -40°C to 85°C and adheres to RoHS3 standards.

Feature Summary

• Utilizes JEDEC center power and ground pinout architecture to reduce noise generation and improve system performance.
• Employs fully static asynchronous circuitry that eliminates the need for external clocks or periodic refresh cycles.
• Features LVTTL-compatible bidirectional I/Os designed for direct interface with standard logic families.

Applications

• Data buffering in embedded systems
• Cache memory implementation in microcontroller applications
• Industrial control system data storage

Procurement Notes

This specific part number is officially classified as obsolete and no longer manufactured by Renesas Electronics Corporation. Procurement must rely on verified replacement components, such as the 71V124SA12TYGI, which is recommended by the manufacturer. Buyers should verify current stock availability through authorized distributors and confirm that substitute parts meet all original electrical and mechanical specifications before integration into production designs.

Selection Notes

Designers requiring this memory capacity should evaluate the 71V124SA12TYGI as the primary manufacturer-recommended alternative. Selection criteria must include verification of the 12 ns access time against the original 10 ns specification to ensure timing compatibility within the target system. Package compatibility remains consistent with the 32-TSOP II form factor, facilitating potential board-level retention if pin assignments align with the new variant's datasheet requirements.

Part Context

The 71V124SA10PHGI belongs to the 71V124 family of 3.3V CMOS SRAMs produced by Renesas Electronics Corporation. This family is characterized by high-speed asynchronous operation and low power consumption. The component was historically utilized in applications requiring fast, non-volatile-free data retention without complex controller overhead, serving as a standard solution for parallel memory interfaces in consumer and industrial electronics prior to its discontinuation.

Replacement Considerations

The 71V124SA12TYGI is the confirmed manufacturer-recommended substitute. Designers must account for the increased 12 ns access time compared to the original 10 ns specification to ensure system timing margins remain sufficient.