CY62256LL-70ZXI

Memory IC Overview

The CY62256LL-70ZXI is a 256K (32K x 8) asynchronous static RAM manufactured by Cypress Semiconductor. It operates within a voltage range of 4.5V to 5.5V and features a 70 ns access time. The device utilizes a 28-lead Thin Small Outline Package (TSOP I). It supports industrial temperature ranges from -40°C to +85°C and incorporates low power consumption characteristics, including automatic power-down when deselected.

Memory IC Feature Summary

• Features TTL-compatible inputs and outputs for direct interfacing with standard logic families.
• Incorporates active LOW chip enable and output enable signals to facilitate easy memory expansion.
• Provides automatic power-down functionality that significantly reduces standby power consumption when the device is deselected.

Memory IC Applications

• Industrial control systems requiring robust performance across wide temperature variations
• Embedded memory storage in consumer electronics operating at standard 5V logic levels
• Automotive electronic modules designed for high reliability under harsh environmental conditions

Memory IC Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and lead-free status. Ensure compatibility with existing system voltage requirements and thermal management specifications before integration. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Memory IC Selection Notes

Select this component for applications requiring non-volatile data retention during power loss and fast random access speeds. Consider the TSOP I package dimensions for PCB layout constraints. Evaluate power dissipation limits relative to ambient operating temperatures to ensure reliable long-term operation within specified electrical parameters.

Memory IC Part Context

This component belongs to the CY62256 family of high-performance CMOS static RAMs. The series offers various speed grades and package options to suit different design needs. Cypress Semiconductor developed this line to provide scalable memory solutions for embedded systems requiring compact form factors and efficient power management capabilities.

Memory IC Replacement Considerations

CY62256LL-70ZC

Memory IC FAQ

What is the function of the CE and OE pins?

The Chip Enable (CE) and Output Enable (OE) pins are active LOW controls. CE selects the chip, while OE enables the outputs. Both must be LOW to read or write data; otherwise, the device enters a high-impedance state.

How does the device handle power consumption when not selected?

When deselected (CE HIGH), the device automatically enters a power-down mode. This feature reduces standby power consumption by approximately 99.9%, minimizing overall energy usage in battery-powered or low-power applications.