CY7C1425AV18-200BZXC

Memory IC Overview

The CY7C1425AV18-200BZXC is a 36-Mbit QDR-II SRAM with a 4M x 9 organization. It features separate independent read and write ports supporting concurrent transactions. The device operates at clock frequencies up to 250 MHz, utilizing double data rate interfaces on both ports for data transfer at 500 MHz. It employs a single multiplexed address bus and includes echo clocks (CQ/CQ) to simplify high-speed data capture. Power supplies are Core VDD at 1.8V ± 0.1V and I/O VDDQ from 1.4V to VDD.

Memory IC Feature Summary

• Separate independent read and write data ports support concurrent transactions without bus turnaround
• Double Data Rate (DDR) interfaces on both read and write ports maximize bandwidth
• Echo clocks (CQ and CQ) synchronize output data timing to simplify system design
• Single multiplexed address input bus latches inputs for both read and write operations

Memory IC Applications

• High-bandwidth networking equipment requiring low-latency memory access
• Telecommunications systems utilizing synchronous pipelined burst architectures
• Data routing applications needing concurrent read and write port independence

Memory IC Procurement Notes

Verify the specific speed grade suffix matches the required operating frequency, as the datasheet lists multiple variants including 250 MHz, 200 MHz, and 167 MHz options within the same family. Confirm package availability in lead-free or non-lead-free configurations based on environmental compliance requirements. Ensure the ordering suffix corresponds exactly to the desired density and configuration variant.

Memory IC Selection Notes

Select this component when a QDR-II architecture with dedicated read and write ports is required to eliminate data contention. Consider the 4M x 9 organization for applications needing parity bits or specific data widths. Evaluate the need for DLL functionality versus disabling it via the DOFF pin based on clock skew requirements. Verify that the system can accommodate the 165-ball FBGA package dimensions and power supply specifications.

Memory IC Part Context

This part belongs to the Cypress Semiconductor QDR-II SRAM family, which includes the CY7C1410AV18, CY7C1412AV18, and CY7C1414AV18. These devices share the same physical footprint and architectural principles but differ in data width and depth. The CY7C1425AV18 specifically provides a 9-bit word width, distinguishing it from the 8, 18, and 36-bit variants in the series.

Memory IC Replacement Considerations

Direct substitutes within the same family include CY7C1410AV18, CY7C1412AV18, and CY7C1414AV18, provided the system accommodates the different data widths (x8, x18, x36). Speed grade variations such as -167BZXC or -250BZXC may be interchangeable if the system clock supports the lower or higher frequencies respectively.