MCP795B21-I/ST
IC RTC CLK/CALENDAR SPI 14TSSOPManufacturer: Microchip Technology
Categories: Real Time Clocks
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Microchip Technology's MCP795B21-I-ST is a highly integrated Real Time Clock (RTC) IC supporting SPI serial communication. This Clock/Calendar component features 64 bytes of integrated EEPROM for data logging and configuration. Its versatile interface allows for access to timekeeping functions, including alarms, leap year compensation, and a watchdog timer. The MCP795B21-I-ST operates across a wide voltage range of 1.8V to 5.5V, with a dedicated battery input supporting 1.3V to 5.5V for uninterrupted timekeeping. The device offers both 12/24 hour time formats and a YY-MM-DD-dd date format. It is supplied in a 14-TSSOP (0.173", 4.40mm Width) surface mount package for efficient board assembly. Typical applications include industrial control systems, consumer electronics, and battery-powered devices where accurate timekeeping and low power consumption are critical, with a timekeeping current draw of just 1µA at 1.8V. The component also includes a unique ID and square wave output capabilities.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:Download Free CAD Model:
Technical Details:
| Features | Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer |
| Packaging | Tube |
| Package / Case | 14-TSSOP (0.173"", 4.40mm Width) |
| Mounting Type | Surface Mount |
| Memory Size | 64B |
| Interface | SPI |
| Type | Clock/Calendar |
| Operating Temperature | -40°C ~ 85°C |
| Voltage - Supply | 1.8V ~ 5.5V |
| Time Format | HH:MM:SS:hh (12/24 hr) |
| Date Format | YY-MM-DD-dd |
| Supplier Device Package | 14-TSSOP |
| Voltage - Supply, Battery | 1.3V ~ 5.5V |
| Current - Timekeeping (Max) | 1µA @ 1.8V ~ 5.5V |
| Programmable | Not Verified |
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