71V30S25TFI8

Overview

The Renesas Electronics Corporation 71V30S25TFI8 is a high-speed, 8-kbit (1K x 8) dual-port static random-access memory (SRAM). It operates asynchronously with a maximum access time of 25 nanoseconds. The device supports a single 3.3V power supply and features fully asynchronous operation from either port. It utilizes parallel interface technology for data transfer. The component is housed in a 64-pin Thin Quad Flat Package (TQFP) suitable for surface-mount installation.

Feature Summary

• True dual-ported memory cells allow simultaneous independent access to the same memory location from both ports.
• On-chip port arbitration logic manages conflicts when both ports attempt to access the same address simultaneously.
• Interrupt flags facilitate communication between the two ports for status signaling and coordination.

Applications

• Stand-alone 8-bit dual-port SRAM applications requiring independent read/write operations
• Systems utilizing automatic power-down features controlled by chip enable signals
• Battery backup operations requiring data retention capabilities

Procurement Notes

Verify the specific suffix 'S' against official documentation to confirm industrial temperature range compliance (-40°C to +85°C), as variants differ. Confirm RoHS status and moisture sensitivity level (MSL 3) requirements for your assembly process. Check current production status as older TFI8 variants may be obsolete or subject to last-time buy notices.

Selection Notes

Select this part when true dual-port functionality with simultaneous access is required. Ensure the 25ns speed meets system timing constraints compared to slower 35ns or 55ns variants. Verify that the 64-TQFP package fits the PCB footprint and that the 3.3V supply voltage aligns with the target design specifications.

Part Context

This component belongs to the 71V30 series of high-speed dual-port SRAMs. The series offers various access times and temperature grades. The 'S' designation typically indicates an industrial temperature range, while 'L' denotes low-power versions. This specific model provides a balance of speed and standard power consumption within the family.

Replacement Considerations

Direct substitutes include other 71V30 series variants such as 71V30L35TFGI8 or 71V30S55TFG, provided the access time and power characteristics are acceptable. Verify pin compatibility and electrical specifications before swapping.