72235LB15PFI8

Overview

The Renesas Electronics Corporation 72235LB15PFI8 is a synchronous FIFO memory device with a storage capacity of 36K bits, organized as 2K words by 18 bits. It operates at a maximum data rate of 66.7MHz with an access time of 10ns. The component supports unidirectional bus direction and programmable status flags. It functions within a supply voltage range of 4.5V to 5.5V, drawing a maximum current of 60mA. The device is housed in a 64-TQFP package (14x14mm) and is rated for industrial operating temperatures from -40°C to 85°C.

Feature Summary

• Synchronous first-in-first-out memory architecture supporting simultaneous read and write operations under a single clock domain.
• Programmable status flags provide real-time monitoring of buffer conditions to prevent overflow and underflow scenarios.
• Unidirectional data flow design simplifies interface integration for dedicated input or output buffering applications.

Applications

• Data buffering between asynchronous system components requiring synchronized transfer rates
• Rate matching interfaces in high-speed digital signal processing chains
• Temporary storage buffers in multiprocessing systems

Procurement Notes

Verify the specific suffix PFI8 against official Renesas documentation to confirm package type and moisture sensitivity level requirements. Confirm end-of-life status and lead availability through authorized distributors, as this part may be discontinued. Ensure environmental compliance matches project specifications, noting RoHS3 status where applicable.

Selection Notes

Select this component when a 2K x 18 word depth is required for synchronous buffering. Compare against the 72235LB15PFGI8 variant if different packaging or tape-and-reel options are needed. Consider the 72225LB15PFI model if half the memory depth suffices for the application constraints.

Part Context

This device belongs to the Renesas 7200 series of high-performance FIFO memories. It shares architectural similarities with other parts in the IDT/Renesas legacy portfolio, offering reliable synchronous data handling. The 72235LB15 designation indicates the specific speed grade and memory organization within the broader 72235 family line.

Replacement Considerations

Public confirmed substitute part numbers: IDT72235LB15PFI8.