7025S17G

Memory IC Overview

The Renesas Electronics Corporation 7025S17G is a high-speed 8K x 16 Dual-Port Static RAM providing a total storage capacity of 128 Kbit. It features asynchronous parallel interface operation with a maximum access time of 17 ns. The device operates on a single 5V (±10%) TTL-compatible power supply, supporting voltage ranges from 4.5V to 5.5V. It includes automatic power-down functionality controlled by Chip Enable signals for low standby power modes and supports battery backup operation with data retention down to 2V.

Memory IC Feature Summary

• True dual-ported memory cells enabling simultaneous independent reads of the same memory location from either port
• Separate upper-byte and lower-byte control logic designed for multiplexed bus compatibility
• On-chip hardware support for semaphore signaling and interrupt flags between ports
• Automatic power-down feature controlled by Chip Enable to minimize standby power consumption

Memory IC Applications

• Stand-alone 128K-bit Dual-Port RAM systems
• Master/Slave Dual-Port RAM configurations for 32-bit or wider word systems
• High-speed data buffering in asynchronous communication interfaces
• Industrial control systems requiring reliable dual-port memory access

Memory IC Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as older variants may not meet current environmental standards. Check for moisture sensitivity level requirements during handling and storage. Ensure package integrity matches design specifications before assembly. Review datasheet revisions for any pinout or electrical parameter updates prior to final procurement.

Memory IC Selection Notes

Select this component when simultaneous independent access to shared memory is required without external arbitration logic. Consider the 17 ns access speed for applications needing moderate-to-high throughput. Evaluate the 84-pin PGA package suitability for through-hole mounting if preferred over surface-mount options. Verify that the 5V single-supply requirement aligns with system power architecture. Assess thermal performance within the specified operating temperature range for the target environment.

Memory IC Part Context

The 7025 series represents a family of high-speed dual-port SRAMs designed for versatile memory sharing applications. The 7025S17G specifically offers a 17 ns access time variant within this lineup. It is part of Renesas' legacy portfolio, often succeeding earlier IDT designs. The series supports various packages including PGA, PLCC, and TQFP, catering to different PCB layout needs. This specific model targets applications requiring robust, asynchronous dual-port memory solutions.

Memory IC Replacement Considerations

Direct substitutes include other 7025 series variants with compatible pinouts and electrical characteristics. Models such as 7025S20G or 7025S25G offer similar functionality with different access speeds. Cross-reference pin assignments and package dimensions to ensure mechanical compatibility. Verify that replacement parts maintain the same dual-port architecture and control signal definitions.