5962-8993502ZA

Overview

The CY7C1381B-133AC is a high-performance synchronous QDR II SRAM manufactured by Cypress Semiconductor Corp. It features a 1M x 18 memory organization with a total capacity of 18Mb. The device operates at a clock frequency of 133 MHz and supports parallel data interfaces. It is designed for surface-mount installation in a 165-LBGA package, suitable for industrial temperature ranges from 0°C to 70°C.

Feature Summary

• Supports high-speed synchronous parallel data transfer using QDR II technology
• Provides dedicated read and write ports for independent operation
• Includes on-chip clock registers for precise timing control

Applications

• High-speed networking equipment buffer memory
• Telecommunications base station processing units
• Industrial automation control systems

Procurement Notes

Verify the specific speed grade suffix (e.g., -133) against the required system clock frequency. Confirm the package type matches the PCB footprint design. Check for RoHS compliance status as older Cypress parts may not meet current environmental standards. Ensure supply chain availability through authorized distributors or qualified secondary markets due to potential end-of-life status.

Selection Notes

Select this component when deterministic latency and high throughput are critical for data buffering applications. Compare pin compatibility with previous generation QDR I devices if upgrading existing designs. Consider power consumption requirements relative to the operating voltage range. Evaluate thermal dissipation capabilities within the selected LBGA package for the target enclosure environment.

Part Context

This part belongs to the Cypress CY7C1381B series of QDR II SRAMs, which are optimized for high-bandwidth applications. The series offers various speed grades to accommodate different system clock requirements while maintaining a consistent pinout and functional interface across the family.

Replacement Considerations

Direct substitutes include other CY7C1381B variants with different speed grades (e.g., -108, -166) if timing constraints allow. Cross-reference with Intel/Altera equivalent QDR II parts for form-fit-function compatibility in legacy designs.