71V2556S133PFG8

Memory IC Overview

The 71V2556S133PFG8 is a synchronous Single Data Rate Zero Bus Turnaround SRAM manufactured by Renesas Electronics Corporation. It features a storage capacity of 4.5 Mbit organized as 128K x 36 bits. The device operates with a maximum clock frequency of 133 MHz and an access time of 4.2 ns. It utilizes a parallel interface and requires a supply voltage between 3.135 V and 3.465 V. The component is housed in a 100-TQFP surface-mount package measuring 14x14 mm. It supports an operating temperature range from 0°C to 70°C.

Memory IC Feature Summary

• Eliminates dead bus cycles during read-to-write or write-to-read transitions through Zero Bus Turnaround architecture
• Provides high-speed data transfer via synchronous pipelined operation at frequencies up to 133 MHz
• Integrates a 36-bit wide parallel interface for efficient data handling in complex system designs

Memory IC Applications

• High-performance embedded systems requiring fast memory access
• Industrial control equipment with strict timing constraints
• Network infrastructure devices utilizing parallel memory interfaces

Memory IC Procurement Notes

Verify the specific suffix PFG8 to confirm the 100-TQFP package and commercial temperature range. Confirm availability status as this series may have discontinuation notices. Ensure compatibility with 3.3V logic levels and check for lead-free compliance requirements before procurement.

Memory IC Selection Notes

Select this component when a 36-bit data width is required for parallel processing applications. Consider the 133 MHz speed grade against system clock requirements. Evaluate the TQFP package suitability for board space constraints compared to BGA alternatives within the same family.

Memory IC Part Context

This part belongs to the 71V2556 family of synchronous ZBT SRAMs. The family offers various speed grades and package options, including PBGA and TQFP configurations. These components are designed for applications needing low latency and high throughput without the complexity of asynchronous memory control.

Memory IC Replacement Considerations

Check for direct pin-compatible upgrades within the 71V2556SA series. Verify if faster speed grades like the 150 MHz variant fit the design timeline. Ensure any substitute maintains the 128K x 36 organization and 100-pin TQFP footprint.