72205LB15J8

Overview

The Renesas Electronics Corporation 72205LB15J8 is a synchronous FIFO memory integrated circuit belonging to the 7200 series. It provides a storage capacity of 4.5K bits, organized as 256 words by 18 bits. The device supports a maximum data rate of 66.7MHz with an access time of 15ns. It operates on a single power supply voltage ranging from 4.5V to 5.5V and draws a maximum supply current of 60mA. The component features unidirectional bus direction and programmable flag support. It is housed in a 68-pin PLCC package and is rated for operation within a temperature range of -40°C to 85°C.

Feature Summary

• Synchronous FIFO architecture with 18-bit data width
• Programmable status flags for full and empty conditions
• Unidirectional data transfer capability
• Industrial temperature range operation

Applications

• Data buffering between asynchronous clock domains
• Interface bridging in high-speed digital systems
• Temporary data storage in communication protocols

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance requirements as original versions may not meet current standards. Validate package integrity upon receipt. Check for moisture sensitivity handling instructions prior to soldering. Ensure design-in compatibility with existing system voltage levels.

Selection Notes

Select this component when 18-bit wide synchronous buffering is required. Consider the 68-pin PLCC package constraints for PCB layout. Evaluate the 15ns access time against system timing requirements. Compare power consumption specifications with alternative solutions. Verify availability of compatible replacement packages if redesign is necessary.

Part Context

This part belongs to the IDT 72205LB family of synchronous FIFOs. The family offers various access times and packaging options. The 72205LB15J8 specifically denotes the 15ns speed grade in PLCC-68 packaging. Related parts include variants with different speeds or pin counts within the same logical family.

Replacement Considerations

Official substitutes include the 72205LB15TFI (64-TQFP) and 72205LB10J8 (PLCC-68). Verify pinout compatibility before substitution. Check datasheet differences for electrical characteristics.