70T653MS12BCGI

Memory IC Overview

The Renesas Electronics Corporation 70T653MS12BCGI is a high-speed asynchronous dual-port static random-access memory (SRAM) device. It features an organization of 512K x 36 bits, providing a total storage capacity of 18 Mbit. The component supports a maximum access time of 12 ns and operates with a parallel interface. Power requirements include a core voltage of 2.5 V and selectable I/O supply voltages of either 3.3 V or 2.5 V. The device is housed in a 256-ball CABGA package and is rated for an industrial operating temperature range from -40 °C to +85 °C.

Memory IC Feature Summary

• Dual-port architecture enables simultaneous independent access to the same memory location by two separate ports.
• RapidWrite mode simplifies high-speed consecutive write cycles for improved throughput efficiency.
• Integrated Busy Input facilitates port contention management during concurrent operations.
• On-chip hardware support for semaphore signaling allows direct communication between the two ports.

Memory IC Applications

• High-performance networking equipment requiring low-latency data buffering
• Telecommunications systems utilizing shared memory architectures
• Industrial control systems needing reliable asynchronous data exchange

Memory IC Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm exact electrical characteristics and pinout compatibility. Confirm RoHS compliance status as it varies by manufacturing origin. Check for active production status and lead times directly with authorized distributors, as availability fluctuates. Ensure the selected package matches the target PCB footprint specifications precisely.

Memory IC Selection Notes

Select this component when a 512K x 36 bit asynchronous dual-port SRAM is required. It is suitable for designs needing simultaneous read/write access from two masters without external arbitration logic. Consider the 256-ball CABGA package constraints and thermal dissipation requirements. Verify that the system power supplies can accommodate both the 2.5V core and the selectable 3.3V or 2.5V I/O levels.

Memory IC Part Context

This part belongs to the 70T653M series of dual-port RAMs from Renesas Electronics. The series is designed for applications demanding high-speed data sharing between processors or peripherals. The 'MS' designation typically indicates standard power consumption variants within the family. These devices are commonly used in embedded systems where deterministic access timing is critical.

Memory IC Replacement Considerations

Official substitutes include the 70T653MS10BC and 70T653MS15BC. Verify pin compatibility and electrical parameter alignment before substitution. Cross-reference datasheets to ensure functional equivalence in the target application environment.