70T653MS12BC

Memory IC Overview

The Renesas Electronics Corporation 70T653MS12BC is an asynchronous dual-port static RAM with a total density of 18 Mbit. The memory organization is structured as 512K words by 36 bits per word. It features a maximum access time of 12 ns and operates on a parallel interface. The device requires a core supply voltage between 2.4 V and 2.6 V. It supports surface mount installation in a 256-ball CABGA package measuring 17x17 mm. The component is rated for industrial temperature ranges, specifically operating from -40°C to +85°C.

Memory IC Feature Summary

• Dual-port architecture enables simultaneous independent access to the same memory location from two separate ports.
• Includes RapidWrite mode functionality to simplify high-speed consecutive write cycles.
• Supports depth expansion through Dual Chip Enables without requiring external logic.
• Features full on-chip hardware support for semaphore signaling between ports.

Memory IC Applications

• High-speed data buffering in telecommunications systems
• Cache memory implementation in embedded processing applications
• Data storage in network switching equipment

Memory IC Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical characteristics and package variations. Confirm RoHS compliance status as indicated in current datasheets. Check moisture sensitivity level requirements before handling. Ensure compatibility with existing system power supplies and signal levels.

Memory IC Selection Notes

Select this component when simultaneous bidirectional data access is required within a single memory block. Consider the 36-bit word width for applications needing wide data paths without external multiplexing. Evaluate the 12 ns access speed against system clock requirements. Verify that the 256-ball BGA package fits within the available board space constraints.

Memory IC Part Context

This part belongs to the 70T653M series of asynchronous dual-port SRAMs manufactured by Renesas Electronics. The series is designed for high-performance applications requiring fast, independent read/write operations. It utilizes LVTTL-compatible I/O signals and includes JTAG functionality for testing and debugging purposes.

Memory IC Replacement Considerations

The 70T653MS10BC is listed as an available alternative within the same product family. Verify pinout compatibility and timing specifications before substitution.