The MCP79410/MCP79411/MCP79412 series is a battery-backed I¬=C real-time clock/calendar designed for industrial applications with an operating temperature range of -40¬8C to +85¬8C. It features a comprehensive timekeeping capability, tracking hours, minutes, seconds, day of the week, day, month, and year, with leap year compensation up to the year 2399. The device supports both 12-hour and 24-hour clock formats and is optimized for use with 32.768 kHz crystals. This series includes dual programmable alarms and a versatile output pin that can be configured for clock output, alarm output, or general-purpose output. The MCP7941X also logs power-fail events, ensuring accurate timekeeping and SRAM content retention during power loss. The device operates within a voltage range of 1.8V to 5.5V, with a low typical timekeeping current of 1.2 ¬µA at 3.3V when powered from VCC, and 925 nA at 3.0V when powered from the backup battery. It includes 64 bytes of battery-backed SRAM and 1 Kbit of EEPROM memory, with features such as software write protection and a robust unlock sequence for critical data storage. The MCP7941X series is available in multiple package types, including 8-lead SOIC, MSOP, TSSOP, and 2x3 TDFN, making it suitable for various design requirements.
"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: MCP79412T-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-MCP79412T-I/MS can be used for catalog matching and distributor lookup.
Manufacturer: Microchip Technology
Win Source Part Number: 1321622-MCP79412T-I/
Category: Integrated Circuits (ICs)>Clock/Timing>R
Packaging: Reel - TR
Type: Clock/Calendar
Features: Alarm, Leap Year, Square Wave Output, SRAM, Unique ID
Standard Package: 2,500
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: 69
MSL Level: 1 (Unlimited)
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Base Product Number: MCP79412
RoHS Status: ROHS3 Compliant
IC RTC CLK/CALENDAR I2C 8-MSOP
IC RTC CLK/CALENDAR I2C 8MSOP
Real Time Clock (RTC) IC Clock/Calendar 64B, 1Kb I²C, 2-Wire Serial 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
REAL TIME CLOCK/CALENDAR, -40 TO 85DEG C; Date Format:YY-MM-DD-dd; Clock Format:HH:MM:SS; Clock IC Type:Calendar, Clock; Supply Voltage Min:1.8V; Supply Voltage Max:5.5V; Clock IC Case Style:MSOP; No. of Pins:8Pins; Product Range:- RoHS Compliant: Yes
| DigiKey | ERSAELECTRONICS PTE. LTD. | Win Source Electronics | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | Quarktwin Technology Ltd. | Newark, An Avnet Company | |
|---|---|---|---|---|---|---|---|
| Product Category | IC Clocks | IC Timers | IC Clocks | IC Clocks | IC Clocks | IC Clocks | IC Clocks |
| Product Number | MCP79412T-I/MS-ND | 690-MCP79412T-I/MS | 1321622-MCP79412T-I/MS | MCP79412T-I/MS | MCP79412T-I/MS | MCP79412T-I/MS | 85R1784 |
| Product Name | Real Time Clocks | Clock and Timing IC | Integrated Circuits (ICs) - Clock/Timing - Real Time Clocks | Clock/Timing - Real Time Clocks | Integrated Circuits (ICs) - Clock-Timing - Real Time Clocks | Real Time Clocks | Real Time Clock/calendar, -40 To 85Deg C; Date Format Microchip |
| Device Type | Real Time Clock | Real Time Clock | Real Time Clock | Clock/Calendar; Real Time Clock | Real Time Clock | Calendar, Clock; Real Time Clock | |
| Package Type | Surface Mount; TSSOP; "8-TSSOP, 8-MSOP (0.118"", 3.00mm Width)" | Tape & Reel (TR) | Surface Mount; 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | Surface Mount; Surface Mount | Surface Mount; SSOP; 8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) | MSOP | |
| Supply Voltage | 1.8 to 5.5 volts | 1.8 to 5.5 volts | 1.3 to 5.5 volts | 1.8 to 5.5 volts | 1.8 to 5.5 volts |
