7025S25GB

Memory IC Overview

The Renesas Electronics Corporation 7025S25GB is a high-speed, 128-kbit dual-port static random-access memory (SRAM) organized as 8K x 16 bits. It features a parallel interface with a maximum access time of 25 nanoseconds. The device operates on a single 5V power supply within a voltage range of 4.5V to 5.5V. It is housed in an 84-pin PGA package and supports asynchronous operation from either port.

Memory IC Feature Summary

• True dual-ported memory cells enabling simultaneous independent reads of the same memory location from both ports.
• On-chip hardware support for semaphore signaling and port arbitration logic to manage data integrity between ports.
• Separate upper-byte and lower-byte control signals designed for multiplexed bus compatibility.
• Battery backup capability allowing data retention at voltages as low as 2V.

Memory IC Applications

• High-performance digital signal processing systems requiring concurrent data access
• Master/slave cascaded configurations for expanding data bus widths beyond 16 bits
• Telecommunications equipment utilizing asynchronous parallel memory interfaces

Memory IC Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance requirements against specific project standards, as lead finish variants exist. Validate package integrity upon receipt, ensuring no damage to the 84-pin PGA contacts. Review manufacturer discontinuation notices for final purchase deadlines and last-time buy availability windows.

Memory IC Selection Notes

Select this component when simultaneous independent port access is required for 16-bit data paths. Ensure system design accommodates the 84-pin PGA footprint and 5V logic levels. Consider thermal management for active power consumption. Verify that the 25ns access speed meets timing constraints compared to faster or slower variants in the 7025 series.

Memory IC Part Context

The 7025S25GB belongs to the IDT/Renesas 7025 family of high-speed dual-port SRAMs. This series provides flexible memory solutions for applications needing concurrent read/write operations. The 'S' designation typically indicates commercial temperature range specifications, while the 'GB' suffix denotes the specific 84-pin PGA package configuration.

Memory IC Replacement Considerations

IDT7025S25GB

Memory IC FAQ

Can the 7025S25GB operate in a master/slave configuration?

Yes, multiple devices can be cascaded using the Master/Slave select pin to expand the data bus width to 32 bits or more.

What is the data retention voltage for battery backup?

The device supports battery backup operation with data retention down to 2V.