CY7C4265V-15ASC

Overview

The CY7C4265V-15ASC is a 16K x 18 low-voltage synchronous FIFO memory manufactured by Infineon Technologies. It operates at a maximum frequency of 66.7 MHz with a 10 ns access time. The device features 3.3V operation, independent read and write clocks, and programmable Almost Full/Empty flags. It is housed in a 64-pin STQFP package.

Feature Summary

• Supports fully asynchronous and simultaneous read/write operations using independent clock domains.
• Includes programmable status flags for Empty, Full, Half Full, and configurable Almost Empty/Almost Full states.
• Enables depth expansion through dedicated cascade input/output pins for connecting multiple devices.

Applications

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

Procurement Notes

Verify the specific suffix 'ASC' against the manufacturer's current documentation to confirm pinout and package dimensions match the 64-lead 10x10 Thin Quad Flatpack specification. Confirm the operating voltage range aligns with the 3.3V requirement and check for any end-of-life notifications or alternative sourcing options due to potential discontinuation.

Selection Notes

Select this component when an 18-bit wide buffer with 16K depth is required. Ensure the system supports 3.3V logic levels. Consider the -15 speed grade if a 66.7 MHz clock rate is sufficient. Verify that the available control signals (WEN, REN, OE) fit the design constraints.

Part Context

This part belongs to the CY7C4255/65/75/85V family of low-voltage deep synchronous FIFOs. These devices utilize 0.35 micron CMOS technology to provide high-speed performance with low power consumption. The family offers various density options ranging from 8K to 64K words while maintaining functional compatibility.

Replacement Considerations

Pin-compatible density upgrades within the CY7C42X5V-ASC families are available. Check datasheet specifications for CY7C4255V-15ASC or CY7C4275V-15ASC as potential alternatives depending on required memory depth.