70T631S15BF

Memory IC Overview

The 70T631S15BF is a high-speed asynchronous dual-port static RAM manufactured by Renesas Electronics. It features a memory organization of 256K x 18 bits, providing a total capacity of 4.5 Mbit. The device supports both 3.3V and 2.5V interface voltages, ensuring compatibility with various logic families. It offers an access time of 15 ns and operates within a commercial temperature range of 0°C to +70°C. The component is housed in a 208-pin CABGA package.

Memory IC Feature Summary

• Dual-port architecture enabling independent simultaneous access from two separate buses
• Asynchronous operation for flexible system integration without clock synchronization requirements
• Supports mixed voltage interfaces allowing connection to either 3.3V or 2.5V logic systems

Memory IC Applications

• High-performance computing systems requiring fast data buffering
• Network infrastructure equipment needing low-latency packet storage
• Industrial control systems utilizing dual-bus architectures

Memory IC Procurement Notes

Verify the specific suffix BF against official Renesas documentation to confirm the 208-pin CABGA package configuration. Confirm that the 15 ns access time meets your system timing requirements. Check current lifecycle status as availability may be limited. Ensure voltage levels match your design's 3.3V or 2.5V interface needs before ordering.

Memory IC Selection Notes

Select this component when a dual-port SRAM with 18-bit width is required. The 15 ns speed suits applications demanding rapid data exchange between processors. Consider the 208-pin CABGA package for board space constraints. Verify thermal management capabilities for operation up to +70°C. Compare against single-port alternatives if only one bus access is needed.

Memory IC Part Context

This part belongs to Renesas' 70V/70T series of high-speed dual-port SRAMs. These devices are designed for embedded applications requiring independent port access. The series typically includes variants with different access times and package options. The 70T631S15BF specifically targets cost-sensitive applications while maintaining high performance standards.

Memory IC Replacement Considerations

Check for direct pin-compatible substitutes within the same Renesas family. Verify electrical parameters such as access time and voltage tolerance. Ensure the replacement maintains the 256K x 18 organization. Confirm package dimensions match the existing PCB footprint.