71V30VL55TFI8

Overview

The 71V30VL55TFI8 is an asynchronous dual-port SRAM manufactured by Renesas Electronics Corporation. It features a memory organization of 1K x 8, providing a total capacity of 8Kbits. The device supports parallel interface access with a maximum access time of 55 ns. It operates on a single 3.3V power supply and includes battery backup capability for data retention down to 2V. The component is housed in a 64-pin TQFP package and is rated for industrial temperature ranges from -40°C to +85°C.

Feature Summary

• True dual-ported architecture enabling simultaneous independent access to the same memory location from both ports.
• On-chip port arbitration logic facilitates interrupt flags for efficient port-to-port communication.
• Fully asynchronous operation allows flexible read and write cycles from either port without clock synchronization.
• Battery backup functionality ensures data retention at voltages as low as 2V.

Applications

• Stand-alone 8-bit dual-port SRAM implementations
• Industrial control systems requiring high-speed data buffering
• Communication gateways needing port-to-port signaling

Procurement Notes

Verify component status carefully as this specific part number may be obsolete or discontinued. Confirm availability through authorized distributors or check for valid replacement alternatives within the 71V30 series. Ensure the required package type and temperature grade match your design specifications before procurement.

Selection Notes

Select this component when true dual-port independence is required for concurrent data access. It is suitable for applications needing asynchronous operation and battery-backed data retention. Consider the 64-TQFP package constraints and 55 ns access speed relative to system timing requirements.

Part Context

This part belongs to the Renesas 71V30 series of high-speed dual-port static RAMs. The series offers various access times and temperature grades. The 'L' suffix typically denotes battery backup support, while 'V' indicates voltage range variations. The 'TFI8' suffix specifies the tape and reel packaging and industrial temperature rating.

Replacement Considerations

Check for other variants in the 71V30 series such as 71V30L25 or 71V30S55 if different access speeds or commercial temperature ranges are acceptable. Verify pin compatibility and electrical characteristics against the original datasheet before substitution.

FAQ

Does the 71V30VL55TFI8 support simultaneous reads from both ports?

Yes, the true dual-ported memory cells allow simultaneous access of the same memory location from both Port A and Port B.

What is the minimum voltage for data retention?

The device supports battery backup operation with data retention down to 2V.