The MCP79412-I/MS is a battery-backed I¬=C real-time clock/calendar that features a range of timekeeping capabilities, including hours, minutes, seconds, day of the week, and date, with leap year compensation up to the year 2399. It supports both 12-hour and 24-hour formats and operates with a 32.768 kHz crystal oscillator optimized for 6-9 pF load capacitance. The device includes on-chip digital trimming for frequency calibration with a resolution of ¬±1 ppm and a range of ¬±129 ppm. This part number includes dual programmable alarms and a versatile output pin that can be configured for clock output, alarm output, or general-purpose output. It also features a power-fail timestamp that logs the time of switchover to battery backup, ensuring accurate timekeeping during power interruptions. The MCP79412-I/MS operates over a wide voltage range of 1.8V to 5.5V, with a low typical timekeeping current of 1.2 ¬µA at 3.3V and 925 nA when powered by the backup battery. In terms of memory, the device includes 64 bytes of battery-backed SRAM, 1 Kbit of EEPROM with software write protection, and a 64-bit protected EEPROM area for storing critical information such as MAC addresses. The MCP79412 is designed for industrial applications, with an operating temperature range of -40¬8C to +85¬8C, and is available in multiple package types including 8-lead SOIC, MSOP, TSSOP, and 2x3 TDFN.
Manufacturer: Microchip Technology
Win Source Part Number: 1316878-MCP79412-I/M
Category: Integrated Circuits (ICs)>Clock/Timing>R
Packaging: Tube
Type: Clock/Calendar
Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID
Standard Package: 100
Mounting: Surface Mount
Memory Size: 64B, 1Kb
Interface: I2C, 2-Wire Serial
Date Format: YY-MM-DD-dd
Voltage - Supply, Battery: 1.3V ~ 5.5V
Current - Timekeeping (Max): 1.2µA @ 3.3V
Voltage - Supply: 1.8V ~ 5.5V
Supplier Device Package: 8-MSOP
Temperature Range - Operating: -40°C ~ 85°C
Case / Package: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
ECCN: EAR99
Fake Threat In the Open Market: 80
MSL Level: 1 (Unlimited)
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Other Part Number: MCP79412IMS
Base Product Number: MCP79412
RoHS Status: ROHS3 Compliant
"Real Time Clock (RTC) IC Clock/Calendar 64B, 1Kb I²C, 2-Wire Serial 8-TSSOP, 8-MSOP (0.118"", 3.00mm Width)"
IC RTC CLK/CALENDAR I2C 8MSOP Product overview: MCP79412-I/MS from Microchip Technology is a Clock and Timing IC for clock generation, timing distribution, synchronization, RF systems, communication hardware, and digital boards. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include key electrical ratings, package details, and application requirements. Search-friendly keywords include clock generator, oscillator, timing, synchronization, Clock and Timing IC, Real Time Clocks ICs. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 690-MCP79412-I/MS can be used for catalog matching and distributor lookup.
Real Time Clock (RTC) IC Clock/Calendar 64B, 1Kb I²C, 2-Wire Serial 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
IC RTC CLK/CALENDAR I2C 8-MSOP
IC RTC CLK/CALENDAR I2C 8MSOP
| Win Source Electronics | DigiKey | ERSAELECTRONICS PTE. LTD. | Quarktwin Technology Ltd. | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|
| Product Category | IC Clocks | IC Clocks | IC Timers | IC Clocks | IC Clocks | IC Clocks |
| Product Number | 1316878-MCP79412-I/MS | MCP79412-I/MS-ND | 690-MCP79412-I/MS | MCP79412-I/MS | MCP79412-I/MS | MCP79412-I/MS |
| Product Name | Integrated Circuits (ICs) - Clock/Timing - Real Time Clocks | Real Time Clocks | Clock and Timing IC | Real Time Clocks | Clock/Timing - Real Time Clocks | Integrated Circuits (ICs) - Clock-Timing - Real Time Clocks |
| Device Type | Real Time Clock | Real Time Clock | Real Time Clock | Real Time Clock | Clock/Calendar; Real Time Clock | |
| Package Type | Surface Mount; 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Surface Mount; TSSOP; "8-TSSOP, 8-MSOP (0.118"", 3.00mm Width)" | Tube | Surface Mount; SSOP; 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) | Surface Mount; Surface Mount | |
| Supply Voltage | 1.3 to 5.5 volts | 1.8 to 5.5 volts | 1.8 to 5.5 volts | 1.8 to 5.5 volts |
