71V30S55TF8

Overview

The 71V30S55TF8 is a high-speed, asynchronous dual-port static random-access memory (SRAM) manufactured by Renesas Electronics Corporation. It features a storage capacity of 8 kilobits organized as 1K x 8 bits. The device supports independent access from two ports with separate control, address, and I/O pins, allowing simultaneous reads or writes to any memory location. It operates on a single 3.3V power supply with TTL-compatible inputs and outputs. Key electrical specifications include a maximum access time of 55 nanoseconds and an automatic power-down feature controlled by the chip enable signal for low standby power consumption.

Feature Summary

• True dual-ported memory architecture enabling simultaneous independent access to the same memory location from both ports
• On-chip port arbitration logic facilitates interrupt flags for direct communication between the two ports
• Fully asynchronous operation allows flexible timing requirements for either port without clock synchronization
• Automatic power-down mode reduces standby current when the chip enable signal is deactivated

Applications

• Stand-alone 8-bit dual-port SRAM modules in embedded systems
• Buffer memory applications requiring concurrent data access from multiple processors
• Industrial equipment utilizing real-time engine microcontrollers
• Systems requiring battery backup operation with data retention capabilities

Procurement Notes

Verify component authenticity through authorized distributors due to potential obsolescence status. Confirm package type matches design requirements, as variants exist in tray or reel formats. Check RoHS compliance status carefully, as specific suffixes may indicate non-compliant versions. Ensure moisture sensitivity level handling procedures are followed during assembly to prevent damage. Validate that the selected variant meets the required temperature range for the intended application environment.

Selection Notes

Select this component when true dual-port functionality is required for concurrent data processing. Choose based on the 55 ns access speed requirement for asynchronous interfaces. Consider the 64-pin TQFP package dimensions for PCB layout constraints. Evaluate power consumption needs, noting the low standby mode availability. Compare against other members of the 71V30 family if different access times or organizational structures are needed.

Part Context

This part belongs to the 71V30 series of high-speed dual-port SRAMs designed for parallel interface applications. The series offers various access speeds and organizational densities to suit different performance requirements. Manufactured using CMOS technology, these devices provide reliable operation across industrial temperature ranges. The 71V30 series is commonly integrated into systems requiring shared memory resources between independent processing units.

Replacement Considerations

Check for exact pin-to-pin compatible replacements within the 71V30 series, such as variants with different access times or packaging options. Verify that substitute parts maintain the same 3.3V supply voltage and TTL-compatible input levels. Ensure alternative components support the required dual-port arbitration and interrupt flag features.