CY62157ELL-45ZSXI

Memory IC Overview

The CY62157ELL-45ZSXI is an 8-Mbit (512 K × 16) asynchronous static RAM manufactured by Infineon Technologies. It operates within a voltage range of 4.5 V to 5.5 V and features a 45 ns access time. The device is housed in a 44-pin TSOP II package and supports industrial operating temperatures from -40 °C to +85 °C. Key electrical characteristics include a maximum standby current of 8 µA and a maximum active current of 25 mA.

Memory IC Feature Summary

• Ultra-low power consumption with automatic power-down when deselected
• CMOS technology for optimized speed and efficiency
• Supports easy memory expansion via multiple chip enable and output enable pins

Memory IC Applications

• Portable applications requiring extended battery life
• Industrial systems interfacing with TTL input levels
• Legacy system integration using advanced circuit design

Memory IC Procurement Notes

Verify the component status as Not Recommended for New Designs (NRND). Confirm that the specific ordering suffix matches the required package type, speed grade, and temperature range. Ensure compatibility with TTL input levels rather than CMOS requirements. Check for lead-free compliance and moisture sensitivity ratings before procurement.

Memory IC Selection Notes

Select this part for designs needing low-power SRAM with wide voltage tolerance. Verify interface compatibility with TTL logic inputs. Consider the NRND status for long-term supply assurance. Evaluate thermal resistance values if high ambient temperatures are expected. Confirm pinout alignment with existing PCB layouts.

Memory IC Part Context

This component belongs to the MoBL SRAM family, designed for portable applications. It utilizes 90 nm process technology. The device provides high performance with ultra-low active and standby currents. It is suitable for systems requiring reliable data retention and fast access times.

Memory IC Replacement Considerations

Check for direct substitutes within the same density and speed class. Verify package compatibility and pin assignments. Review updated datasheets for any functional changes or improvements in successor models.

Memory IC FAQ

Is the CY62157ELL-45ZSXI compatible with CMOS input levels?

No, the device is suitable for processors with TTL I/P levels and is not suitable for those requiring CMOS I/P levels.

What is the typical standby current for this SRAM?

The typical standby current is 2 µA, with a maximum of 8 µA for the Industrial grade.