The IDT7216L35J is a high-speed CMOS Asynchronous FIFO (First-In, First-Out) memory device. While originally manufactured by IDT (Integrated Device Technology), it is now associated with Renesas Electronics America following acquisitions and company restructuring. This FIFO is designed to buffer data streams between systems operating at different clock speeds or with asynchronous timing. It provides a flexible and efficient solution for managing data flow in a variety of applications.

Applications

• Data communications equipment
• Disk controllers
• Graphics processing
• Inter-processor communication
• Local area networks (LANs)
• Telecommunications systems

Features

• High-speed operation: 35 MHz clock frequency
• Asynchronous operation: Independent read and write clocks
• Bidirectional data flow
• Empty and Full flags to prevent overflow or underflow
• Low power CMOS technology
• Output Enable control
• Pin-compatible with other industry-standard FIFOs
• Available in ceramic DIP packages

Benefits

• Improves system performance by buffering data between devices with different clock speeds
• Simplifies data transfer and management in complex systems
• Reduces the need for complex timing and control circuitry
• Increases system reliability by preventing data loss due to timing conflicts
• Facilitates efficient data flow in real-time applications

Additional Details

The IDT7216L35J operates from a single 5V power supply. It features independent read and write clocks, allowing for fully asynchronous operation. The FIFO depth determines the number of data words it can store. The device incorporates flags that signal when the FIFO is empty or full, enabling the host system to monitor the FIFO status and prevent data overflow or underflow. The asynchronous nature of this FIFO simplifies interfacing with systems that have different clock domains. This FIFO is particularly useful in applications where data needs to be transferred reliably between asynchronous systems. The 'J' suffix likely indicates a ceramic DIP (Dual In-line Package), suitable for environments requiring higher temperature ranges and increased reliability. It is often employed where maintaining data integrity during asynchronous transfers is paramount. Its bidirectional capability suits applications needing flexible data handling.