Microchip MCP79520-I/MS, Real Time Clock (RTC), 64B RAM Serial, 10-Pin MSOP
8 V.6 V, Maximum Operating Temperature: +85 °C, Minimum Operating Supply Voltage: 1.95mm, Length: 3mm, Maximum Operating Supply Voltage: 3.Microchip MCP79520-I/MS, Real Time Clock (RTC), 64B RAM Serial, 10-Pin MSOP, Functions: Calendar, Date Format: DW:M:Y:LY, Time Format: HH:MM:SS:HSS, Mounting Type: Surface Mount, Dimensions: 3 x 3 x 0.