CY7C1525KV18-250BZXC

Memory IC Overview

The CY7C1525KV18-250BZXC is a 72-Mbit QDR II SRAM with an 8M x 9 organization. It supports a maximum clock frequency of 250 MHz and operates within a core voltage range of 1.7 V to 1.9 V. The device features separate independent read and write data ports, enabling concurrent transactions without bus turnaround delays. It utilizes a 165-ball FBGA package (13 x 15 x 1.4 mm) and includes double data rate interfaces on both ports for high bandwidth.

Memory IC Feature Summary

• Supports concurrent read and write operations through separate independent data ports
• Features a 2-word burst architecture for sequential data transfers
• Includes echo clocks to simplify data capture in high-speed systems
• Offers programmable output impedance via the ZQ pin

Memory IC Applications

• High-bandwidth networking equipment
• Telecommunications infrastructure
• Data communication systems requiring low latency

Memory IC Procurement Notes

Verify the specific speed grade suffix matches the required 250 MHz operation. Confirm the package type corresponds to the 165-ball FBGA format. Ensure the ordering suffix indicates the correct lead-free status if required by assembly processes. Cross-reference the manufacturer's current datasheet revision for any updates to electrical characteristics or pin definitions before finalizing procurement.

Memory IC Selection Notes

Select this component when system design requires simultaneous read and write access to memory locations. Consider the 250 MHz speed grade for applications balancing performance and power consumption. Evaluate the need for byte-write capabilities using BWS inputs. Verify that the available I/O voltage range aligns with the system controller interface requirements.

Memory IC Part Context

This part belongs to the Cypress Semiconductor QDR II SRAM family, which also includes variants like the CY7C1510KV18 and CY7C1512KV18. These devices share the same architectural foundation but differ in density and data width configurations. The KV18 series specifically denotes the 1.8V core voltage technology node used across these synchronous pipelined SRAM products.

Memory IC Replacement Considerations

Direct replacements include other speed grades within the CY7C1525KV18 series, such as the 333 MHz variant. Ensure functional compatibility regarding port select signals and address multiplexing when substituting with different speed grades from the same family.

Memory IC FAQ

How does the DOFF pin affect read latency?

When DOFF is asserted HIGH, the device operates with a 1.5-cycle read latency. Asserting DOFF LOW disables the PLL, causing the device to behave in QDR I mode with a 1-cycle read latency.

What is the function of the ZQ pin?

The ZQ pin is used for impedance matching. Connecting an external resistor between ZQ and ground tunes the output driver impedance to match the system data bus impedance.