70T659S15BC8

Memory IC Overview

The Renesas Electronics Corporation 70T659S15BC8 is a high-speed, asynchronous dual-port static random-access memory (SRAM) device. It features a storage capacity of 4.5 Mbit organized as 128K words by 36 bits. The component operates with a supply voltage range of 3.15V to 3.45V and supports an access time of 15 ns. It utilizes a parallel interface and is housed in a 256-CABGA package measuring 17x17 mm. The device is rated for commercial operating temperatures between 0°C and 70°C.

Memory IC Feature Summary

• Supports simultaneous independent read and write operations through two separate ports without bus contention.
• Enables cascading configurations as Master/Slave units to expand system word width beyond 36 bits.
• Includes automatic power-down functionality controlled by chip enable signals to minimize standby current.

Memory IC Applications

• High-performance telecommunications equipment requiring low-latency data buffering
• Industrial automation systems utilizing master/slave memory expansion architectures
• Network infrastructure hardware needing fast asynchronous data processing

Memory IC Procurement Notes

Verify the specific suffix 'BC8' against official manufacturer documentation to confirm packaging type and availability status. This component is identified as obsolete or end-of-life in multiple distributor records. Ensure compatibility with existing board layouts regarding the 256-CABGA footprint and validate that the 3.3V logic levels match the target system requirements before procurement.

Memory IC Selection Notes

Select this component when a system requires true dual-port memory capabilities with a 36-bit data width. It is suitable for applications needing independent port access without external arbitration logic. Consider the 15 ns access speed and 3.3V operation for standard industrial environments. Verify if the 256-CABGA package is compatible with the assembly process.

Memory IC Part Context

This part belongs to the 70V659 series of dual-port SRAMs from Renesas Electronics. The series is designed for high-speed data handling in complex digital systems. Variants within the family differ primarily in access speeds, voltage tolerances, and temperature ratings. The 70V659 series provides a robust solution for applications demanding reliable, non-volatile-free memory structures with concurrent access capabilities.

Memory IC Replacement Considerations

Direct replacements are limited due to the component's obsolete status. Evaluate other parts within the 70V659 family or the 70T659 series for similar specifications. Cross-reference pinouts and electrical characteristics carefully. Consult official Renesas documentation for approved substitute part numbers or recommended design modifications.