7140SA100PF

Overview

The Renesas Electronics Corporation 7140SA100PF is a high-speed, 8Kbit (1K x 8) Dual-Port Static Random Access Memory (SRAM). It features asynchronous parallel interface operation with a maximum access time of 100 ns. The device operates on a single 5V power supply within the 4.5V to 5.5V range and supports commercial temperature ranges from 0°C to 70°C. It is housed in a 64-TQFP surface-mount package.

Feature Summary

• Dual-port architecture enabling independent simultaneous access by two processors
• Asynchronous operation for flexible system integration without clock synchronization
• High-speed data handling capabilities suitable for demanding processing tasks

Applications

• Slave dual-port RAM configuration paired with 7130 Master Dual-Port devices
• High-speed data buffering in embedded systems
• FPGA-based designs requiring rapid data handling

Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm RoHS compliance status as older variants may not meet current environmental standards. Check for moisture sensitivity level (MSL 3) handling requirements during storage and assembly. Ensure pinout compatibility with target PCB layout before procurement.

Selection Notes

Select this component when dual-port memory functionality is required for concurrent processor access. Consider the 100 ns access speed against system timing requirements. Evaluate the TQFP package constraints for board space limitations. Compare against the 7140SA55P if faster access times are needed, noting the package difference.

Part Context

Part of the 7140 series of dual-port SRAMs designed for master-slave configurations. Complements the 7130 series for expanded 16-bit or wider memory architectures. Offers static random access memory benefits including non-volatile retention during power loss and fast read/write cycles compared to dynamic alternatives.

Replacement Considerations

The 7140SA55P offers similar dual-port functionality but with 55 ns access time in a 48-PDIP package. Verify package footprint differences between TQFP and DIP formats. Cross-reference electrical specifications to ensure voltage and timing compatibility.