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G-MOD : MCP79412 Precision Real-Time Clock (RTC) Module
Price range: ₹239.00 through ₹250.00 (Incl. GST)
- Real-Time Clock (RTC) with calendar up to year 2399
- Leap-year compensation and 12/24-hour format support
- Alarm functions with programmable match options
- Square-wave output at multiple frequencies (1 Hz, 4 kHz, 8 kHz, 32 kHz)
- 64 bytes of general-purpose SRAM
- Unique, factory-programmed 64-bit ID
- Low operating current and standby consumption
Product details
G-MOD : MCP79412 Real-Time Clock (RTC) Module
The G-MOD MCP79412 is a high-accuracy, battery-backed Real-Time Clock (RTC) module designed to provide reliable timekeeping in embedded systems, IoT devices, data loggers, and consumer electronics.
Built on Microchip’s MCP79412 IC, this module keeps track of seconds, minutes, hours, day, date, month, year, and leap year with leap-year correction through 2399. It features a backup battery input to maintain timekeeping during power loss and includes 64 bytes of SRAM and a unique 64-bit ID for system authentication or tracking.
Interface definition
- VCC: Power supply
- GND: Power ground
- I / B : Backup battery input
- CLK / MFP: Multi-function pin (square wave output, alarm interrupt, or general output)
- SDA: I²C serial data line
- SCL: I²C serial clock line
ICS-43434 connection with ESP32 / GLYPH Development Board
- VDD – 3.3V
- GND – GND
- I/B – GPIO 2
- SDA – SDA / GPIO 4
- SCL – SCL / GPIO 5
Features:
- Real-Time Clock (RTC) with calendar up to year 2399
- Leap-year compensation and 12/24-hour format support
- Battery-backup input (VBAT) for uninterrupted timekeeping
- Timestamp function for power-fail events
- Alarm functions with programmable match options
- Square-wave output at multiple frequencies (1 Hz, 4 kHz, 8 kHz, 32 kHz)
- 64 bytes of general-purpose SRAM
- Unique, factory-programmed 64-bit ID
- I²C serial interface, 100 kHz & 400 kHz support
- Low operating current and standby consumption
Specifications
- RTC IC MCP79412
- I2C RTC Address0x6F
- I2C EEPROM Address0x57
- Alarms2 independent alarms
- Square Wave Output1 Hz, 4 kHz, 8 kHz, 32 kHz
- Memory64 bytes SRAM, 64-bit unique ID
- Operating Current~1.2 µA (timekeeping with VBAT)
Additional information
| Weight | 50 g |
|---|---|
| Dimensions | 10 × 10 × 5 cm |
| SOLDERED HEADERS | YES, NO |
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