70T3539MS133BC8

Memory IC Overview

The Renesas Electronics Corporation 70T3539MS133BC8 is a high-speed synchronous dual-port static random access memory (SRAM) with an organization of 512K x 36 bits, providing a total storage capacity of 18 Mbit. It operates at a maximum clock frequency of 133 MHz with a typical access time of 4.2 ns. The device supports a supply voltage range of 2.4 V to 2.6 V and features a parallel interface. It is housed in a 256-pin CABGA package measuring 17x17 mm, designed for surface mount installation.

Memory IC Feature Summary

• Dual-port architecture enabling simultaneous independent access to the same memory location from two separate ports.
• Full synchronous operation on both ports optimized for unidirectional or bidirectional data flow in bursts.
• Automatic power-down feature controlled by chip enables to achieve very low standby power modes.

Memory IC Applications

• High-speed networking equipment requiring rapid data buffering
• Telecommunications systems utilizing burst data processing
• Industrial control systems needing reliable dual-access memory

Memory IC Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status as documentation indicates potential variations. Check moisture sensitivity level requirements before assembly. Ensure proper ESD handling procedures are followed during procurement and storage to maintain device integrity.

Memory IC Selection Notes

Select this component when synchronous dual-port SRAM with 36-bit width is required. Consider the 133 MHz speed and 4.2 ns access time for high-throughput applications. Verify that the 256-CABGA package fits the PCB layout constraints. Ensure the 2.5V core voltage aligns with system power design.

Memory IC Part Context

This part belongs to the 70T3539M series of synchronous dual-port RAMs. It shares architectural similarities with other members like the 70T3539MS133BCG and 70T3539MS133BCI8, differing primarily in packaging suffixes and specific manufacturing revisions within the broader Renesas memory portfolio.

Memory IC Replacement Considerations

The IDT70T3539MS133BCI8 is a documented alias for this component family. Verify pin compatibility and electrical specifications against original datasheets before substitution. Ensure the replacement matches the 256-CABGA package dimensions and thermal characteristics.