7035L12PF

Memory IC Overview

The 7035L12PF is a high-speed 8K x 18 Dual-Port Static RAM designed for stand-alone or MASTER/SLAVE configurations in wider memory systems. It features true dual-port architecture allowing simultaneous reads of the same location, with separate upper-byte and lower-byte control for multiplexed bus compatibility. The device includes on-chip interrupt flags, port arbitration logic, and semaphore signaling support. It operates asynchronously from either port, supports battery backup with 2V data retention, and uses a single 5V (±10%) TTL-compatible power supply.

Memory IC Feature Summary

• True dual-port architecture enables simultaneous independent access to shared memory locations without external arbitration logic.
• Integrated hardware support for semaphore signaling and interrupt flags facilitates efficient inter-port communication.
• Separate byte control allows compatibility with multiplexed bus systems by independently managing upper and lower data bytes.

Memory IC Applications

• Stand-alone 144K-bit dual-port memory systems
• Master/Slave dual-port RAM combinations for 36-bit or wider word architectures
• Multiplexed bus compatible memory interfaces requiring independent byte control

Memory IC Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm package type, temperature grade, and lead-free status. Confirm current production status as some variants may be obsolete. Ensure voltage requirements match the 5V specification and check for industrial temperature range availability if operating outside commercial limits.

Memory IC Selection Notes

Select this component when simultaneous read access to shared memory is required without external logic. It is suitable for applications needing master/slave configurations for wider data buses. Verify that the 5V supply and asynchronous interface align with system requirements. Consider the 100-pin TQFP package constraints for PCB layout.

Memory IC Part Context

This part belongs to the Renesas 7035 series of dual-port SRAMs. It shares architectural similarities with other members like the 7035L15PFG but differs in access time and specific suffix designations. The series is designed for high-speed data sharing between processors or controllers.

Memory IC Replacement Considerations

Check for direct substitutes within the 7035 family such as 7035L15PFG for similar functionality with different timing. Verify pinout and electrical compatibility before substitution. Obsolete variants like 7035L15PF should not be used as replacements due to potential end-of-life issues.