CY7C43684-10AC

FIFOs Memory Overview

The CY7C43684-10AC is a 3.3V synchronous FIFO memory device from the Cypress CY7C436xxAV series, featuring a 16K x 36 x 2 organization. It utilizes 0.25-micron CMOS technology to support high-speed operation up to 133 MHz with read/write cycle times as fast as 7.5 ns. The component offers low power consumption with an operating current of 60 mA and supports fully asynchronous and simultaneous read and write operations. It is housed in a 128-pin TQFP package.

FIFOs Memory Feature Summary

• Supports fully asynchronous and simultaneous read and write operations for flexible data handling
• Includes mailbox bypass registers for each FIFO to enhance bus matching capabilities
• Features parallel and serial programmable almost full and almost empty flags
• Allows user-selectable standard or First Word Fall Through (FWFT) modes

FIFOs Memory Applications

• Bus matching between different speed domains in system architectures
• Data buffering in high-speed digital signal processing applications
• Temporary storage in bidirectional communication interfaces

FIFOs Memory Procurement Notes

Verify the specific suffix '10AC' against official Cypress documentation to confirm the exact speed grade and package variant, as suffixes define critical electrical and mechanical specifications. Ensure compatibility with 3.3V logic levels and check for RoHS compliance status if required by your manufacturing standards. Cross-reference the part number with the manufacturer's current product status to confirm availability and lifecycle stage.

FIFOs Memory Selection Notes

Select this component when a dual-port synchronous FIFO with a 36-bit word width is required for high-throughput applications. The 16K depth provides substantial buffering capacity compared to smaller variants like the 1K or 4K versions in the same family. Consider the 128-pin TQFP package constraints for PCB layout and ensure the design supports the necessary control signals for mailbox and flag programming features.

FIFOs Memory Part Context

This part belongs to the CY7C436xxAV family of 3.3V synchronous FIFOs, which includes variants with different depths such as the CY7C43644AV (1K) and CY7C43664AV (4K). All members share the same 36-bit width and core architecture but differ in memory size and potentially speed grades. The family is designed for applications requiring efficient data transfer between asynchronous systems.

FIFOs Memory Replacement Considerations

Direct substitutes within the same family include the CY7C43644AV and CY7C43664AV, though these offer different memory depths. Verify that the replacement part meets the required 133 MHz performance and 3.3V operating voltage. Check pinout compatibility and software configuration requirements before swapping.