CY7C4241-10AXC

FIFOs Memory Overview

The CY7C4241-10AXC is a 4K x 9 synchronous FIFO memory manufactured by Cypress Semiconductor. It features a 10 ns minimum cycle time and supports operation up to 100 MHz. The device utilizes advanced 0.65 μm N-Well CMOS technology for high speed and low power consumption, with an active supply current of 35 mA. It includes programmable Almost Empty and Almost Full flags, TTL-compatible inputs, and independent read/write clocks. The component is housed in a space-saving 7 mm × 7 mm 32-pin TQFP package.

FIFOs Memory Feature Summary

• Supports fully asynchronous and simultaneous read and write operations with independent clock domains.
• Features programmable Almost Empty and Almost Full status flags for precise buffer management.
• Includes width-expansion capability to increase data bus width using multiple devices.
• Provides center power and ground pins to reduce noise and improve signal integrity.

FIFOs Memory Applications

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

FIFOs Memory Procurement Notes

Verify the specific suffix 'AXC' against official documentation to confirm package type and temperature range. Confirm RoHS compliance status as legacy parts may vary. Check for pin compatibility requirements with IDT722X1 series if replacing existing designs. Ensure voltage levels match the 5V ±10% operating requirement.

FIFOs Memory Selection Notes

Select this part for applications requiring 4K depth and 9-bit width synchronous buffering. Choose the -10 speed grade for 100 MHz operation needs. Consider the TQFP package for surface-mount assembly constraints. Verify that the programmable flag granularity meets system latency requirements compared to fixed-flag alternatives.

FIFOs Memory Part Context

This component belongs to the CY7C42X1 family of high-speed, low-power synchronous FIFOs. The family offers densities ranging from 64 x 9 to 8K x 9. The CY7C4241 specifically provides 4K words of storage. It is functionally equivalent to IDT72241 and shares architectural similarities with other members like CY7C4231 and CY7C4251.

FIFOs Memory Replacement Considerations

Pin-compatible and functionally equivalent substitutes include IDT72241. Other family members such as CY7C4231 (2K) or CY7C4251 (8K) may be considered if density adjustments are acceptable.

FIFOs Memory FAQ

How are the programmable flags configured?

The Almost Empty and Almost Full flags are programmed via offset registers accessible when WEN2/LD is held LOW during reset. Data is written to these registers using the WCLK and RCLK signals.

What is the default state of the flags upon power-up?

Upon power-up, the FIFO must be reset using the RS pin. The default offset values for both the Almost Empty and Almost Full flags are set to 7 words.