70T653MS15BC

Memory IC Overview

The Renesas Electronics Corporation 70T653MS15BC is an asynchronous dual-port static random-access memory (SRAM) integrated circuit. It provides a total storage capacity of 18 Mbit, organized as 512K words by 36 bits. The device features a parallel interface with a maximum access time of 15 ns. It operates within a supply voltage range of 2.4 V to 2.6 V and supports a wider industrial operating temperature range from -40°C to +85°C. The component is housed in a 256-pin CABGA package measuring 17x17 mm.

Memory IC Feature Summary

• Dual-port architecture enabling independent simultaneous access for two processors
• Asynchronous operation without requiring a system clock signal
• Wide industrial temperature rating for robust environmental performance

Memory IC Applications

• High-speed data buffering in telecommunications equipment
• Cache memory implementation in network routers and switches
• Data acquisition systems requiring concurrent read/write operations

Memory IC Procurement Notes

Verify the specific suffix requirements for your design, as variants like 70T653MS15BCI offer extended temperature ranges compared to standard versions. Confirm RoHS compliance status, as older stock may not meet current environmental directives. Check for end-of-life notices or obsolescence announcements from the manufacturer before finalizing procurement plans.

Memory IC Selection Notes

Select this component when dual-processor systems require independent access to shared memory resources without arbitration delays. The 36-bit word width suits applications needing error correction code integration or wide data paths. Ensure the PCB layout accommodates the 256-pin CABGA package dimensions and thermal requirements for the specified operating temperature range.

Memory IC Part Context

This part belongs to the IDT70T653M family of high-speed asynchronous dual-port SRAMs. The series is designed for demanding applications requiring fast, non-blocking memory access. Variants within the family differ primarily in access speed and operating temperature specifications while maintaining the same core memory organization and pinout compatibility.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers include 70T653MS12BCI and 70T653MS10BC. These alternatives offer faster access times but may have different temperature ratings or power consumption characteristics. Verify electrical compatibility and package integrity before substitution.