7005S35J

Overview

The Renesas Electronics Corporation 7005S35J is a dual-port static random access memory (SRAM) device with a storage capacity of 64 kbit, organized as 8k x 8. It features an asynchronous parallel interface and a typical access time of 35 ns. The component operates on a single 5V power supply within a voltage range of 4.5 V to 5.5 V, with a maximum supply current of 250 mA. It supports surface mount installation in a 68-pin PLCC package and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• True dual-ported memory cells enable simultaneous independent reads from the same memory location by both ports.
• On-chip hardware support for semaphore signaling facilitates master/slave configurations and port arbitration logic.
• Automatic power-down feature controlled by chip enable allows entry into low standby power mode.
• TTL-compatible inputs and outputs ensure compatibility with standard digital logic families.

Applications

• Stand-alone 64K-bit dual-port RAM systems
• Master/Slave dual-port RAM combinations for 16-bit or wider word systems
• Battery backup operation requiring data retention

Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm RoHS compliance requirements as indicated by manufacturer specifications. Validate package integrity upon receipt. Check datasheet revisions for any functional updates. Ensure proper handling procedures are followed during assembly.

Selection Notes

Select this component when simultaneous independent access to shared memory locations is required. Consider the 68-pin PLCC package for surface mount applications. Evaluate power consumption against system constraints given the 250 mA maximum current rating. Verify temperature range suitability for the intended operational environment.

Part Context

The 7005S35J belongs to the Renesas 7005 series of high-speed dual-port SRAMs. This family provides flexible memory solutions for embedded systems requiring concurrent data access. The device integrates advanced arbitration logic to manage bus conflicts between two independent ports efficiently.

Replacement Considerations

Public confirmed substitute part numbers include IDT7005S35J. Verify pinout compatibility and electrical specifications before substitution. Review datasheet differences regarding package dimensions and timing parameters.