CY7C4205V-15ASXC

FIFOs Memory Overview

The CY7C4205V-15ASXC is a low-voltage synchronous FIFO memory with a 256 x 18 organization and an 18-bit data bus. It operates at a maximum frequency of 66.7 MHz with a 15 ns cycle time. The device supports 3.3 V operation, features TTL-compatible inputs, and includes programmable Almost Full/Empty flags. It offers depth and width expansion capabilities via cascade pins and provides independent read/write clocks for asynchronous operations.

FIFOs Memory Feature Summary

• Supports simultaneous independent read and write operations using separate clock domains
• Features programmable status flags for precise buffer level monitoring
• Enables system scalability through cascading for increased word depth or bus width
• Includes retransmit functionality to facilitate reliable packet data transfer

FIFOs Memory Applications

• High-speed data acquisition systems requiring temporary storage
• Multiprocessor interfaces managing data flow between processors
• Communications buffering for network protocol handling

FIFOs Memory Procurement Notes

Verify the specific suffix ASXC against official Infineon documentation to confirm package type and lead-free status. Confirm current availability as this component series may be subject to discontinuation notices. Ensure compatibility with existing board layouts regarding the 64-pin TQFP or STQFP footprint before procurement.

FIFOs Memory Selection Notes

Select this component when an 18-bit wide interface is required for synchronous data buffering. The 256-word depth suits moderate buffering needs without excessive pin count. Verify that the 3.3 V supply voltage aligns with the target system logic levels and that the 66.7 MHz speed meets the application timing requirements.

FIFOs Memory Part Context

This part belongs to the CY7C42X5V family of low-voltage synchronous FIFOs manufactured by Cypress Semiconductor, now part of Infineon Technologies. The family includes variants with different depths ranging from 64 to 4K words. The CY7C4205V specifically provides the 256-word capacity within this architecture.

FIFOs Memory Replacement Considerations

Check for direct replacements within the CY7C42X5V family such as the CY7C4205V-25ASXC for slower speeds. Verify if newer generations like the CY7C42XXV series offer pin-compatible upgrades. Consult official obsolescence notices for end-of-life status.