72235LB15TF8

Overview

The Renesas 72235LB15TF8 is a synchronous FIFO memory device belonging to the 7200 series. It features a storage capacity of 36K bits, organized as 2K words by 18 bits. The component supports unidirectional data transfer with a maximum data rate of 66.7MHz and an access time of 10ns. It operates on a single 4.5V to 5.5V power supply with a maximum current consumption of 60mA. The device is housed in a 64-TQFP package (14x14mm) and is rated for an industrial operating temperature range of -40°C to +85°C.

Feature Summary

• Synchronous operation with programmable status flags for empty, half-full, and full conditions.
• Expandable architecture allowing modification of both word depth and bit width.
• Uni-directional bus interface designed for efficient data buffering.

Applications

• Multiprocessing systems requiring data synchronization between processors.
• Rate matching buffers for asynchronous data streams.
• High-speed digital signal processing interfaces.

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance version, as suffixes indicate environmental specifications. Check moisture sensitivity level handling requirements prior to assembly. Validate package dimensions against PCB footprint specifications to ensure mechanical compatibility during integration.

Selection Notes

Select this part for applications requiring 18-bit wide synchronous buffering with 10ns latency. Compare against the 72235LB10 variant if higher speed (100MHz) is needed, noting the trade-off in access time. Ensure the design accommodates the 64-pin TQFP thermal dissipation characteristics within the specified industrial temperature range limits.

Part Context

This component is part of the IDT/Renesas 7200 series of high-performance FIFO memories. The 72235LB15TF8 specifically denotes the 10ns speed grade and TQFP packaging variant. It succeeds earlier generations by offering expanded configurability while maintaining pin compatibility with standard FIFO interfaces for seamless system upgrades.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The product status is listed as obsolete; consult manufacturer notices for potential lifecycle alternatives or last-time buy information.