72245LB25TF

Overview

The Renesas Electronics Corporation 72245LB25TF is a synchronous FIFO memory device belonging to the 7200 series. It features an organization of 4K x 18 bits, providing a total storage capacity of 72 Kbits. The component supports unidirectional data flow with a maximum data rate of 66 MHz and a typical access time of 15 ns. It operates within a supply voltage range of 3.0 V to 3.6 V and draws a maximum supply current of 30 mA. The device is housed in a 64-pin TQFP package (10x10 mm) and is rated for industrial operating temperatures from -40°C to +85°C.

Feature Summary

• Supports independent read and write clocks allowing simultaneous operation or single-clock synchronization
• Includes programmable almost-empty and almost-full flags for buffer management
• Features output enable control to place the data bus in a high-impedance state

Applications

• Optical disk controllers
• Local Area Network (LAN) buffering
• Interprocessor communication interfaces

Procurement Notes

Verify the exact suffix against official Renesas documentation to confirm pinout compatibility and electrical specifications. Confirm RoHS compliance status as older variants may differ. Check for active production status or end-of-life notices before finalizing procurement plans.

Selection Notes

Select this component when a 3.3V synchronous FIFO with 18-bit width is required. Ensure the design accommodates the 64-pin TQFP footprint. Verify that the 66 MHz speed meets system timing requirements and that the industrial temperature range aligns with environmental conditions.

Part Context

This part belongs to the IDT 722x5LB family of synchronous FIFOs. These devices are designed for high-speed data buffering applications requiring reliable first-in, first-out memory structures. The LB variant typically denotes specific speed grades and packaging options within the broader product line.

Replacement Considerations

Consult official Renesas datasheets for direct cross-references. Potential substitutes include other members of the 72245 series with compatible pinouts and electrical characteristics.