CY62256LL-55ZXI

Memory IC Overview

The CY62256LL-55ZXI is a 256 Kbit (32K x 8) asynchronous static RAM manufactured by Infineon Technologies. It operates within a voltage range of 4.5 V to 5.5 V and features a 55 ns access time. The device supports an industrial temperature range from -40 °C to +85 °C. It utilizes a 28-lead Thin Small Outline Package (TSOP-1) with lead-free construction. Key electrical characteristics include a maximum active supply current of 50 mA and a standby current of up to 10 µA.

Memory IC Feature Summary

• Features automatic power-down when deselected, reducing power consumption significantly.
• Provides TTL-compatible inputs and outputs for system integration.
• Supports easy memory expansion through dedicated chip enable and output enable controls.

Memory IC Applications

• Industrial control systems requiring low-power volatile memory
• Embedded applications utilizing 5V logic interfaces
• Data storage in portable electronic devices

Memory IC Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and lead finish specifications. Confirm that the component meets the required industrial temperature ratings and voltage tolerances for the target application environment before finalizing procurement decisions.

Memory IC Selection Notes

Select this component for designs requiring a 32K x 8 organization with 55 ns speed at 5V operation. Ensure the PCB layout accommodates the 28-lead TSOP-1 footprint. Consider the low standby power requirements if battery backup or energy efficiency is a priority for the system architecture.

Memory IC Part Context

This part belongs to the CY62256 family of high-performance CMOS static RAMs. The 'LL' designation indicates low power variants optimized for commercial and industrial environments. The 'ZXI' suffix specifies the lead-free 28-lead TSOP-1 package configuration available within this product line.

Memory IC Replacement Considerations

Check for CY62256LL-55ZI as a potential equivalent in standard TSOP packages. Verify pinout compatibility and electrical parameters against datasheets for any cross-brand replacements to ensure functional parity.

Memory IC FAQ

What is the standby power consumption of the CY62256LL-55ZXI?

The maximum standby current is specified as 10 µA under industrial operating conditions.

How does the device handle deselection?

When deselected via the Chip Enable (CE) input, the device enters an automatic power-down mode, placing outputs in a high-impedance state and minimizing power usage.