MCP79510 Series

Battery-Backed SPI Real-Time Clock/Calendar

Catalog

Battery-Backed SPI Real-Time Clock/Calendar

Part	Interface	Supplier Device Package	Package / Case	Features	Operating Temperature [Max]	Operating Temperature [Min]	Memory Size	Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Time Format	Voltage - Supply, Battery [Max]	Voltage - Supply, Battery [Min]	Mounting Type	Current - Timekeeping (Max)	Package / Case [x]	Package / Case [x]
Microchip Technology MCP79510T-I/MN	SPI	10-TDFN (3x3)	10-WFDFN Exposed Pad	Alarm EEPROM Leap Year Square Wave Output SRAM Unique ID	85 °C	-40 °C	64 B	Clock/Calendar	3.6 V	1.8 V	HH:MM:SS:hh (12/24 hr)	3.6 V	1.3 V	Surface Mount	1 µA
Microchip Technology MCP79510-I/MS	SPI	10-MSOP	10-MSOP 10-TFSOP	Alarm EEPROM Leap Year Square Wave Output SRAM Unique ID	85 °C	-40 °C	64 B	Clock/Calendar	3.6 V	1.8 V	HH:MM:SS:hh (12/24 hr)	3.6 V	1.3 V	Surface Mount	1 µA	3 mm	0.118 in
Microchip Technology MCP79510T-I/MS	SPI	10-MSOP	10-MSOP 10-TFSOP	Alarm EEPROM Leap Year Square Wave Output SRAM Unique ID	85 °C	-40 °C	64 B	Clock/Calendar	3.6 V	1.8 V	HH:MM:SS:hh (12/24 hr)	3.6 V	1.3 V	Surface Mount	1 µA	3 mm	0.118 in

Catalog

Battery-Backed SPI Real-Time Clock/Calendar

Key Features

• * VCC Min = 1.8V

• * Icc < 5 µA Typical

• * VBAT Min = 1.3V

• * Ibat < 700nA Typical Timekeeping & SRAM Retention Current

• * Automatic Battery Switchover with Timestamp

• * Dual configurable alarms with a 0.01 sec count on one alarm

• * Clock Out frequencies: 32.768, 8.192 & 4.096 KHz and 1 Hz

• * Adjusts up to 22 seconds/day

• * Protect: None, 1/4, 1/2 or all of array

• * Factory standard MAC address programming or custom ID available

Description

The MCP79510 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.