7035S15PF8/E

Memory IC Overview

The 7035S15PF8/E is a high-speed 8K x 18 Dual-Port Static RAM providing 144K-bit density. It features true dual-port architecture allowing simultaneous reads of the same memory location with separate upper-byte and lower-byte control for multiplexed bus compatibility. The device operates asynchronously from either port with a 15 ns access time. It includes on-chip interrupt flags, port arbitration logic, and hardware semaphore signaling. Power management includes an automatic power-down feature controlled by Chip Enable (CE) for low standby mode. The component supports battery backup operation with 2V data retention and utilizes a single 5V (±10%) TTL-compatible power supply.

Memory IC Feature Summary

• True dual-port architecture enables simultaneous independent access to memory locations from both ports without conflict.
• Integrated hardware support for semaphore signaling and port arbitration logic facilitates efficient inter-port communication.
• Automatic power-down functionality reduces standby power consumption when chip enable signals are inactive.
• Supports battery backup operation ensuring data retention at low voltage levels.

Memory IC Applications

• Stand-alone 144K-bit dual-port memory systems
• Master/Slave dual-port configurations for 36-bit or wider word systems
• Multiplexed bus compatible applications requiring byte-level control

Memory IC Procurement Notes

Verify the specific suffix 'E' indicates industrial temperature range compliance if required for your design environment. Confirm package dimensions match the 100-pin TQFP specification. Check current availability status as this part number may have limited stock or obsolescence notices. Ensure voltage requirements align with the single 5V supply constraint. Validate that the asynchronous interface matches your system timing constraints.

Memory IC Selection Notes

Select this component when simultaneous read access to shared memory is critical for system performance. The integrated arbitration logic eliminates the need for external discrete logic in master/slave configurations. Consider the 15 ns access speed against system clock requirements. Verify that the 100-pin TQFP package fits within the available board space. Ensure the 5V supply voltage is stable within the ±10% tolerance for reliable operation.

Memory IC Part Context

This device belongs to the Renesas 7035 series of dual-port SRAMs. It is designed to replace older discrete logic solutions in high-speed memory applications. The series offers various access times and organization options. The 7035S15PF8/E specifically targets applications requiring fast, conflict-free dual-port access with minimal external components. It serves as a key building block for complex memory architectures in industrial and communication equipment.

Memory IC Replacement Considerations

Check for equivalent parts such as IDT7035S15PF8/E which shares identical specifications. Verify pinout compatibility before substitution. Ensure the replacement part supports the same 8K x 18 organization and 15 ns access time. Confirm package type remains 100-pin TQFP. Review any updates in the latest datasheet for potential minor functional changes.