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Product Detailed Parameters
- Description：IC RTC PHANTOM CHIP PAR 80BGA
- Series：-
- Package：Tray
- Mfr：Analog Devices Inc./Maxim Integrated
- Type：Phantom Time Chip
- Features：Leap Year, NVSRAM
- Memory Size：2MB
- Time Format：HH:MM:SS:hh (12/24 hr)
- Date Format：YY-MM-DD-dd
- Interface：Parallel
- Voltage - Supply：3V ~ 3.7V
- Voltage - Supply, Battery：3V
- Current - Timekeeping (Max)：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
- Package / Case：80-BBGA
- Supplier Device Package：80-BGA (40x40)
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Overview
The DS1254WB-C02 is a parallel interface Real-Time Clock (RTC) and Non-Volatile Static RAM (NVSRAM) controller manufactured by Analog Devices Inc./Maxim Integrated. It integrates a 2MB NVSRAM array with a phantom clock timekeeping circuit, packaged in an 80-BBGA (40x40mm) surface-mount footprint. The device operates on a supply voltage of 3V to 3.7V and supports both 12-hour and 24-hour time formats alongside a YY-MM-DD-dd date format. Key features include leap year compensation and non-volatile memory control for data retention.
Feature Summary
- Integrated 2MB NVSRAM with phantom clock functionality
- Parallel bus interface for microcontroller connectivity
- Supports 12/24 hour time formats and YY-MM-DD-dd date formats
- Includes leap year compensation logic
Applications
- Industrial systems requiring persistent time and large data storage
- Portable electronic devices needing low-power RTC solutions
- Embedded controllers utilizing parallel NVSRAM interfaces
Procurement Notes
Verify the specific suffix 'C02' against official datasheets to confirm package and temperature range variations. Confirm availability status as distribution channels may list this component as obsolete or limited stock. Ensure the 80-BBGA footprint matches the target PCB design constraints.
Selection Notes
Select this component when a high-density NVSRAM solution combined with real-time clocking is required in a parallel architecture. The 3V to 3.7V operating range suits battery-backed portable applications. Verify that the host system can support the parallel interface timing requirements and the physical dimensions of the 80-BBGA package.
Part Context
This part belongs to the DS1254 series of NVSRAMs with Phantom Clocks. The series typically includes variants like the DS1254WB2-150. These components are designed to provide robust timekeeping and data retention without the complexity of serial interfaces, serving legacy parallel bus designs.
Replacement Considerations
Consult the manufacturer's obsolescence notices for direct replacements. Parallel NVSRAM RTCs from the same family may offer pin-compatible alternatives if the exact C02 suffix is unavailable.
