70T653MS12BCI8

Memory IC Overview

The 70T653MS12BCI8 is a high-speed asynchronous dual-port static RAM with a density of 18 Mbit, organized as 512K x 36 bits. It operates on a single 2.5V core supply and supports selectable 3.3V or 2.5V I/O logic levels. The device features a 12 ns access time and is housed in a 256-ball CABGA package measuring 17x17 mm. It includes JTAG functionality and interrupt flags for port arbitration.

Memory IC Feature Summary

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

Memory IC Applications

• High-performance networking equipment requiring low-latency data buffering
• Telecommunications systems utilizing interleaved I/O architectures
• Industrial control systems needing robust dual-processor communication

Memory IC Procurement Notes

Verify component authenticity through authorized channels due to potential counterfeit risks. Confirm RoHS compliance status as the base series may not meet current environmental standards. Check moisture sensitivity level handling requirements during storage and assembly. Validate that the specific suffix matches the required voltage and temperature grade for your design.

Memory IC Selection Notes

Select this part when a 36-bit wide data bus is required for dual-port applications. Ensure the system supports 2.5V core voltage and compatible I/O levels. Consider the 256-ball BGA package constraints for PCB layout. Verify that the 12 ns access time meets the timing requirements of the host processors.

Memory IC Part Context

This component belongs to the 70T653M family of high-speed asynchronous dual-port SRAMs. It is designed for applications demanding simultaneous access and high bandwidth. The family supports various access times and voltage configurations within the same physical footprint.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for end-of-life alternatives if discontinuation is a concern.