71V3556SA133BQ8

Overview

The Renesas Electronics Corporation 71V3556SA133BQ8 is a static random access memory (SRAM) device belonging to the 71V3556 series. It features a storage capacity of 4.5 Mbit organized as 128K x 36 bits. The component operates with a maximum clock frequency of 133 MHz and provides an access time of 4.2 ns. It utilizes a parallel interface and functions within a supply voltage range of 3.135 V to 3.465 V. The device is housed in a 165-CABGA package measuring 13x15 mm, designed for surface mount installation.

Feature Summary

• Synchronous Single Data Rate (SDR) Zero-Bus Turnaround (ZBT) architecture
• High-speed parallel data transfer capability
• Wide operating temperature range suitable for industrial applications

Applications

• High-performance embedded systems requiring fast data buffering
• Industrial control equipment demanding reliable volatile memory
• Telecommunications infrastructure hardware
• Network switching devices utilizing wide data buses

Procurement Notes

Verify component authenticity through authorized channels due to potential availability constraints. Confirm RoHS compliance status as specific variants may not meet current environmental directives. Validate package integrity upon receipt to ensure proper soldering performance. Check for recent Product Change Notifications regarding substrate or labeling updates that may affect integration.

Selection Notes

Select this model when a 36-bit data width is required for system bus compatibility. Ensure the design supports the specified 3.3V I/O logic levels. Verify that the PCB layout accommodates the 165-ball CABGA footprint dimensions. Consider thermal management requirements given the power consumption characteristics at high clock speeds.

Part Context

This component is part of the broader 71V3556 family of synchronous SRAMs produced by Renesas Electronics. The family includes various speed grades and packaging options to support different system timing and form factor requirements. The SA suffix typically denotes specific speed binning or internal configuration variations within the standard product line.

Replacement Considerations

Direct replacements include other 71V3556 series variants such as 71V3556SA133BGI or 71V3556SA133BG, provided the package type matches the board design. Cross-reference datasheets to confirm identical pinouts and electrical specifications before substitution.