IDT7201LA35SO

FIFOs Memory Overview

The IDT7201LA35SO is an asynchronous FIFO memory integrated circuit manufactured by Renesas Electronics Corporation. It features a storage capacity of 4.5K bits, organized as 512 words by 9 bits. The device supports a data rate of 22.2 MHz with a maximum access time of 35 ns. It operates on a single power supply voltage ranging from 4.5 V to 5.5 V and draws a maximum supply current of 80 mA. Designed for surface-mount applications, it is housed in a 28-SOIC package. The component functions as a unidirectional buffer and includes relay capability.

FIFOs Memory Feature Summary

• Provides asynchronous buffering for unidirectional data flow between systems operating at different speeds.
• Includes internal relay capability to maintain data integrity during bus transitions or system resets.
• Supports standard 5.0V TTL logic levels for direct interface compatibility with common digital circuits.

FIFOs Memory Applications

• Data buffering in high-speed serial communication interfaces
• Clock domain crossing synchronization in digital signal processing systems
• Interface bridging between microprocessors and peripheral devices

FIFOs Memory Procurement Notes

This component is officially discontinued and no longer in production. Verification of availability is restricted to existing stock held by authorized distributors or third-party suppliers. Buyers must confirm the authenticity and physical condition of units prior to acquisition, as original manufacturer support and warranty are unavailable. Sourcing should focus on verified surplus channels to mitigate risks associated with obsolete electronic components.

FIFOs Memory Selection Notes

Engineers selecting this part should prioritize its specific 512x9 organization and 35ns access speed for legacy system maintenance. The unidirectional architecture limits use cases to simple buffer applications rather than complex bidirectional data exchange. Designers must ensure the 28-SOIC footprint matches the target PCB layout and verify that the 4.5V to 5.5V operating range aligns with the system's power delivery infrastructure.

FIFOs Memory Part Context

The IDT7201LA35SO belongs to the 7200 series of asynchronous FIFO memories produced by Integrated Device Technology (IDT), now part of Renesas Electronics. This series was widely utilized in telecommunications and industrial automation for managing data throughput mismatches. The 'LA' suffix typically denotes lead-free compliant packaging variants within the broader product family, though specific environmental compliance should be verified against the actual unit markings.

FIFOs Memory Replacement Considerations

• IDT7201LA35SC
• IDT7201LA35SOG8