CY7C421-10JXCT

FIFOs Memory Overview

The CY7C421-10JXCT is a 512 x 9 asynchronous FIFO memory device. It features independent read and write operations at speeds up to 50 MHz with a maximum access time of 10 ns. The component utilizes dual-ported RAM cells for true asynchronous operation and includes Full, Empty, and Half Full status flags. It operates on a single 5V supply (4.5V to 5.5V) and supports depth and width expansion capabilities.

FIFOs Memory Feature Summary

• Asynchronous first-in first-out buffer memory architecture
• Independent read and write operations up to 50 MHz
• Dual-ported RAM cell technology
• Full, Empty, and Half Full status flag outputs

FIFOs Memory Applications

• Data buffering between asynchronous clock domains
• Packet data transfer systems requiring retransmit capability
• High-speed interface bridging in communication equipment

FIFOs Memory Procurement Notes

Verify the specific ordering suffix 'JXCT' against official manufacturer documentation. The datasheet lists 'JXC' as the Pb-Free Plastic Leaded Chip Carrier package. Confirm if 'T' denotes a specific tape-and-reel configuration or variant not explicitly detailed in the provided text. Ensure compatibility with the required commercial temperature range specifications.

FIFOs Memory Selection Notes

Select this component when a 512-word by 9-bit depth is required for asynchronous data buffering. It is suitable for applications needing independent read/write clocks up to 50 MHz. Consider the PLCC package form factor and TTL-compatible input levels. Verify that the 5V supply voltage aligns with the system design requirements.

FIFOs Memory Part Context

This part belongs to the CY7C419/21/25/29/33 family of asynchronous FIFOs manufactured by Cypress Semiconductor Corporation. The CY7C421 specifically provides a 512 x 9 organization. These devices are fabricated using advanced 0.65-micron P-well CMOS technology and offer pin compatibility with legacy IDT and AMD FIFO parts.

FIFOs Memory Replacement Considerations

The datasheet states the device is pin compatible and functionally equivalent to IDT7201, AM7201, and similar parts in the IDT7200 series.