71V424S15PHG

Overview

The IDT71V424S15PHG is a 4-Mbit asynchronous static random-access memory (SRAM) organized as 512K words by 8 bits. Manufactured using high-performance CMOS technology, this component provides parallel interface access with a maximum access time of 15 nanoseconds and a write cycle time of 15 nanoseconds. It operates within a supply voltage range of 3.0V to 3.6V and supports an industrial operating temperature range from -40°C to +85°C. The device is housed in a 44-lead Thin Small Outline Package (TSOP II) with a width of 10.16mm.

Feature Summary

• High-speed asynchronous operation with equal access and cycle times for efficient data handling
• Low-power consumption achieved through chip deselect mechanisms during inactive states
• Bidirectional I/O pins that are directly compatible with TTL logic levels

Applications

• High-speed cache memory systems
• Buffer storage in telecommunications equipment
• Data acquisition systems requiring fast random access

Procurement Notes

Verify the specific suffix 'PHG' against official Renesas or IDT documentation to confirm lead-free status and package variations. Confirm RoHS compliance requirements as older batches may differ. Check current lifecycle status as IDT SRAM lines have undergone significant transitions and end-of-life notifications. Ensure the supplier provides valid traceability for the manufacturer part number.

Selection Notes

Select this component when a 4-Mbit capacity with 15ns speed is required in a 44-pin TSOP II form factor. Compare against the IDT71V424L series if lower power standby modes are critical, noting potential differences in internal architecture. Verify voltage compatibility with the 3V to 3.6V range. Consider pinout compatibility with existing PCB layouts designed for standard 44-TSOP packages.

Part Context

This part belongs to the IDT 71V424 family of high-speed CMOS static RAMs. The family includes variants with different access speeds and package options, such as the SOJ and LCC formats. The 'S' suffix typically denotes commercial/industrial temperature grades, while 'L' variants often feature low-power features. This specific model represents a standard performance option within the broader 4-Mbit SRAM portfolio.

Replacement Considerations

Public confirmed substitutes include the IS61LV5128AL-10TLI from ISSI. Verify pin-to-pin compatibility and electrical specifications before substitution.