CY7C4231-15JXC

FIFOs Memory Overview

The CY7C4231-15JXC is a 2K x 9 synchronous FIFO memory manufactured by Cypress Semiconductor. It features a 9-bit data bus width and operates with a maximum clock frequency of 66.7 MHz, corresponding to a cycle time of 15 ns and an access time of 10 ns. The device utilizes a 32-pin PLCC package and supports independent read and write clocks for asynchronous operation. It includes programmable Almost Empty and Almost Full flags, TTL-compatible inputs, and center power/ground pins for noise reduction.

FIFOs Memory Feature Summary

• Supports fully asynchronous and simultaneous read and write operations using independent clocks
• Features programmable Almost Empty and Almost Full status flags for precise buffer management
• Includes dedicated Output Enable pin to control three-state data outputs
• Offers width expansion capability by connecting multiple devices

FIFOs Memory Applications

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

FIFOs Memory Procurement Notes

Verify the specific suffix JXC indicates a lead-free (Pb-free) plastic leaded chip carrier package as documented in the selection guide. Confirm the -15 speed grade corresponds to the 66.7 MHz maximum frequency and 15 ns minimum cycle time specifications. Ensure the commercial operating temperature range of 0°C to +70°C aligns with system requirements.

FIFOs Memory Selection Notes

Select this component when a 2K depth and 9-bit word width are required for synchronous buffering applications. The -15 speed grade provides a balance between performance and power consumption suitable for general-purpose high-speed interfaces. Consider the PLCC package form factor for compatibility with existing board layouts designed for IDT722X1 equivalents.

FIFOs Memory Part Context

This part belongs to the CY7C42X1 family of low-voltage synchronous FIFOs, which also includes densities ranging from 64x9 to 8Kx9. The CY7C4231 specifically provides 2K words of storage. The family shares common architectural features such as dual-port SRAM arrays and programmable flag logic, ensuring functional consistency across different memory depths within the series.

FIFOs Memory Replacement Considerations

The datasheet confirms the device is pin-compatible and functionally equivalent to IDT72421, 72201, 72211, 72221, 72231, and 72241.