DS1216B

Controllers Overview

The DS1216B is a discontinued Smartwatch RAM memory controller manufactured by Analog Devices Inc./Maxim Integrated. It integrates SRAM with a phantom clock module and lithium coin-cell battery management for non-volatile data retention. The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of 0°C to 70°C. It is housed in a 28-DIP (0.600 inch, 15.24mm) socket package designed for through-hole installation.

Controllers Feature Summary

• Integrates smartwatch RAM storage controller with phantom clock functionality
• Manages lithium coin-cell battery backup for data retention
• Designed for microcontroller interfacing via standard control signals

Controllers Applications

• Microcontroller-based systems requiring non-volatile memory backup
• Smartwatch applications utilizing phantom clock modules
• Industrial equipment needing reliable timekeeping during power loss

Controllers Procurement Notes

Verify component authenticity carefully as the DS1216B is officially obsolete and no longer manufactured. Confirm that existing stock matches the specific 28-DIP package and electrical specifications. Check for potential counterfeit risks associated with end-of-life components from this manufacturer series.

Controllers Selection Notes

Consider the LT1216CN#PBF only if the application requires precision amplifiers rather than memory control functions, as these are distinct component categories. For direct functional replacement of the memory controller, evaluate equivalent-density phantom clock modules or modern integrated RTC solutions with backup capabilities.

Controllers Part Context

The DS1216B belongs to the DS1216 family of SmartSocket devices produced by Maxim Integrated, now part of Analog Devices. These components were specifically engineered to provide compact, battery-backed memory solutions for embedded systems. The product line has been superseded by newer technologies offering higher density and improved integration.

Controllers Replacement Considerations

DS1243Y-120+ is listed as a similar substitute part number by the manufacturer.