CY7C4245-10ASXC

FIFOs Memory Overview

The CY7C4245-10ASXC is a 4K x 18 synchronous FIFO memory manufactured by Cypress Semiconductor. It features an 18-bit data bus width and supports a maximum clock frequency of 100 MHz with a minimum cycle time of 10 ns. The device provides a maximum access time of 8 ns and operates on a single 5V supply. It includes programmable Almost Full/Empty flags, retransmit functionality, and independent read/write enable pins for asynchronous operation.

FIFOs Memory Feature Summary

• Supports high-speed synchronous operations up to 100 MHz with simultaneous read and write capabilities.
• Features programmable Almost Full and Almost Empty status flags for precise buffer management.
• Includes a retransmit function to facilitate packet data acknowledgment and retransmission.
• Allows depth expansion through cascade inputs and outputs for increased buffering capacity.

FIFOs Memory Applications

• High-speed data acquisition systems
• Multiprocessor interface buffering
• Communications data buffering

FIFOs Memory Procurement Notes

Verify the specific speed grade suffix '10' corresponds to the required 100 MHz performance and 8 ns access time. Confirm the package type matches the design requirements, as this part number indicates a specific pinout configuration within the CY7C4245 family. Ensure compatibility with existing system voltage levels and clocking schemes before integration.

FIFOs Memory Selection Notes

Select this component when an 18-bit wide synchronous FIFO with 4K word depth is required. It is suitable for applications demanding high throughput at 100 MHz. Consider the availability of programmable flags and retransmit features if complex buffering logic or packet handling is needed. Verify that the 64-pin TQFP or PLCC package fits the PCB layout constraints.

FIFOs Memory Part Context

This device belongs to the CY7C42X5 series of high-speed, low-power synchronous FIFOs. The series includes variants with different depths ranging from 64 to 4K words. All members share pin and functional compatibility with IDT722X5 devices, facilitating direct replacement in existing designs using that architecture.

FIFOs Memory Replacement Considerations

The CY7C4245-10ASXC is functionally compatible with the IDT72245L10. Designers replacing legacy parts should verify signal integrity and timing margins, as the CY7C4245 operates at higher speeds than some older asynchronous or slower synchronous alternatives.