BQ2205LYPWRG4

Overview

The BQ2205LYPWRG4 is a nonvolatile SRAM memory controller manufactured by Texas Instruments. It operates within a supply voltage range of 3V to 3.6V and supports an operating temperature range from -20°C to 70°C. The device is housed in a 16-TSSOP package with a width of 4.40mm. It is designed for battery backup applications, featuring a dedicated battery backup switch input to manage data retention during power transitions.

Feature Summary

• Provides control logic for nonvolatile SRAM devices to ensure data integrity
• Includes a battery backup switch input for seamless power transition management
• Operates within standard industrial temperature ranges

Applications

• Battery-backed SRAM systems
• Data retention circuits in embedded systems
• Industrial control equipment requiring volatile memory protection

Procurement Notes

Verify the specific suffix 'G4' indicates RoHS compliance and lead-free construction as per manufacturer standards. Confirm the 16-TSSOP package dimensions match the design footprint requirements. Ensure the operating voltage range aligns with the system's power supply rails. Check for any recent Product Change Notifications regarding marking or packaging updates.

Selection Notes

Select this component when designing systems that require reliable data preservation in SRAM during power loss events. It is suitable for applications where a secondary battery source is available to maintain memory content. Consider the thermal performance within the specified temperature range for the intended enclosure environment.

Part Context

This part belongs to the BQ2205 series of memory controllers from Texas Instruments. It is specifically engineered for managing nonvolatile SRAM chips in battery backup scenarios. The device simplifies the interface between the main processor and the SRAM while handling the complex switching logic required for data protection.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.