72215LB15TFI8

Overview

The Renesas Electronics Corporation 72215LB15TFI8 is a synchronous FIFO memory device belonging to the 7200 series. It features an 18-bit data bus width and a storage capacity of 512 words (9 kbit). The component supports unidirectional data transfer with a maximum clock frequency of 66.7 MHz and a typical access time of 10 ns. It operates within a supply voltage range of 4.5 V to 5.5 V, drawing a maximum supply current of 60 mA. The device is housed in a 64-pin TQFP package measuring 10x10 mm and is rated for industrial operating temperatures from -40°C to +85°C.

Feature Summary

• Synchronous operation with independent read and write clocks allows flexible interface timing control.
• Programmable Almost-Empty and Almost-Full flags provide customizable buffer status monitoring.
• Zero fall-through architecture ensures immediate data availability upon read enable assertion.

Applications

• Data buffering in high-speed serial communication interfaces
• Interprocessor communication between microcontrollers and DSPs
• Graphics memory buffering for display controllers

Procurement Notes

Verify end-of-life status as this part number may be discontinued. Confirm RoHS compliance requirements against project specifications, as older variants often lack lead-free certification. Validate package dimensions and pinout compatibility during PCB layout finalization. Request official datasheets to confirm specific suffix designations for tape-and-reel packaging versus tube formats.

Selection Notes

Select this component when a 18-bit wide synchronous FIFO with 512-word depth is required. Ensure system clock frequencies do not exceed the 66.7 MHz limit. Verify that the 4.5V to 5.5V supply range matches the target logic levels. Consider the 64-TQFP package constraints for board space and thermal management requirements.

Part Context

This device is part of the IDT 72215 family of synchronous FIFOs, manufactured by Renesas Electronics following its acquisition of Integrated Device Technology. The 72215 series is designed for high-performance data buffering applications requiring precise synchronization between asynchronous clock domains.

Replacement Considerations

Check for direct pin-compatible replacements within the 72215 series with different speed grades or package options. Consult Renesas documentation for officially recommended cross-reference parts if the exact model is unavailable.