MCP79520 Series

Battery-Backed SPI Real-Time Clock/Calendar

Catalog

Battery-Backed SPI Real-Time Clock/Calendar

Part	Package / Case	Date Format	Interface	Current - Timekeeping (Max)	Type	Time Format	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Features	Voltage - Supply, Battery (Maximum)	Voltage - Supply, Battery (Minimum)	Mounting Type	Package Length	Package Name	Package Width	Memory Size	Operating Temperature (Min)	Operating Temperature (Max)
Microchip Technology MCP79520T-I/MN	10-WFDFN Exposed Pad	YY-MM-DD-dd	SPI	1 µA	Clock/Calendar	HH:MM:SS:hh (12/24 hr)	3.6 V	1.8 V	Alarm EEPROM Leap Year Square Wave Output SRAM Unique ID	3.6 V	1.3 V	Surface Mount	3 mm	10-TDFN	3 mm	64 B	-40 °C	85 °C
Microchip Technology MCP79520-I/MS		YY-MM-DD-dd	SPI	1 µA	Clock/Calendar	HH:MM:SS:hh (12/24 hr)	3.6 V	1.8 V	Alarm EEPROM Leap Year Square Wave Output SRAM Unique ID	3.6 V	1.3 V	Surface Mount	0.118 in	10-MSOP 10-TFSOP	3 mm	64 B	-40 °C	85 °C
Microchip Technology MCP79520T-I/MS		YY-MM-DD-dd	SPI	1 µA	Clock/Calendar	HH:MM:SS:hh (12/24 hr)	3.6 V	1.8 V	Alarm EEPROM Leap Year Square Wave Output SRAM Unique ID	3.6 V	1.3 V	Surface Mount	0.118 in	10-MSOP 10-TFSOP	3 mm	64 B	-40 °C	85 °C

Catalog

Battery-Backed SPI Real-Time Clock/Calendar

Description

The MCP79520 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of memory, which includes SRAM, EEPROM and a blank unique ID in a locked section of EEPROM. The ID is blank in this device, but can also be ordered with a 48-bit or 64-bit MAC Address.