規格
| 屬性 | 價值 |
| Package / Case | Tube |
| Part Status | Active |
| Type | Clock/Calendar |
| Features | Alarm, Leap Year, Square Wave Output, SRAM, Unique ID |
| Memory Size | 64B, 1Kb |
| Time Format | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial |
| Voltage - Supply | 1.8V ~ 5.5V |
| Voltage - Supply, Battery | 1.3V ~ 5.5V |
| Current - Timekeeping(Max) | 1.2µA @ 3.3V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
概述
Description
The MCP79410-I/SN is a low-power real-time clock/calendar (RTCC) with battery backup, manufactured by Microchip. It features I²C communication, 64 bytes of SRAM, and a built-in timestamping function for power events. Key highlights include:
- Battery Backup: Operates down to 1.3V, ensuring timekeeping during power loss.
- I²C Interface: Supports standard (100kHz) and fast (400kHz) modes.
- Timekeeping: Tracks seconds, minutes, hours, day, date, month, and year (leap-year compensated).
- Alarms: Two configurable alarms with interrupt outputs.
- Power Monitoring: Timestamps power failures and restorations.
- SRAM: 64 bytes of nonvolatile memory for user data.
Available in an 8-pin SOIC package, it’s ideal for embedded systems requiring precise timekeeping, such as IoT devices, data loggers, and industrial controls. Its low power consumption (<400nA in backup) makes it suitable for battery-powered applications.
For detailed specs, refer to the Microchip datasheet.
- Battery Backup: Operates down to 1.3V, ensuring timekeeping during power loss.
- I²C Interface: Supports standard (100kHz) and fast (400kHz) modes.
- Timekeeping: Tracks seconds, minutes, hours, day, date, month, and year (leap-year compensated).
- Alarms: Two configurable alarms with interrupt outputs.
- Power Monitoring: Timestamps power failures and restorations.
- SRAM: 64 bytes of nonvolatile memory for user data.
Available in an 8-pin SOIC package, it’s ideal for embedded systems requiring precise timekeeping, such as IoT devices, data loggers, and industrial controls. Its low power consumption (<400nA in backup) makes it suitable for battery-powered applications.
For detailed specs, refer to the Microchip datasheet.
Equivalent
Equivalent products to the MCP79410-I/SN (Real-Time Clock/Calendar with SRAM) include:
- DS3231 (Maxim Integrated) – Higher accuracy, no SRAM.
- PCF8523 (NXP) – Lower power, I²C interface.
- RV-8803-C7 (Micro Crystal) – Ultra-low power, I²C.
- MCP7940N (Microchip) – Similar but lacks battery switchover.
Check datasheets for exact feature compatibility.
- DS3231 (Maxim Integrated) – Higher accuracy, no SRAM.
- PCF8523 (NXP) – Lower power, I²C interface.
- RV-8803-C7 (Micro Crystal) – Ultra-low power, I²C.
- MCP7940N (Microchip) – Similar but lacks battery switchover.
Check datasheets for exact feature compatibility.
Pinout
The MCP79410-I/SN is an 8-pin (SOIC package) real-time clock (RTC) and EEPROM IC with battery backup. Key functions include:
- I²C Interface (2 pins: SDA, SCL) for communication.
- RTC with timestamping, alarms (2), and 64-byte SRAM.
- 256-byte EEPROM for non-volatile storage.
- VBAT pin for battery backup (1.3V–5.5V).
- MFP (Multi-Function Pin) for interrupt/output.
- VCC (2.0V–5.5V) and GND for power.
Pins:
1. VCC
2. MFP
3. VBAT
4. GND
5. SCL
6. SDA
7. NC (No Connect)
8. NC
Compact and versatile for timekeeping + data storage.
- I²C Interface (2 pins: SDA, SCL) for communication.
- RTC with timestamping, alarms (2), and 64-byte SRAM.
- 256-byte EEPROM for non-volatile storage.
- VBAT pin for battery backup (1.3V–5.5V).
- MFP (Multi-Function Pin) for interrupt/output.
- VCC (2.0V–5.5V) and GND for power.
Pins:
1. VCC
2. MFP
3. VBAT
4. GND
5. SCL
6. SDA
7. NC (No Connect)
8. NC
Compact and versatile for timekeeping + data storage.
Application
The MCP79410-I/SN is a versatile real-time clock (RTC) and EEPROM device with battery backup, commonly used in:
1. Consumer Electronics: Smartwatches, appliances, and IoT devices for timekeeping.
2. Industrial Systems: Automation, data loggers, and equipment requiring timestamping.
3. Networking: Routers, switches, and servers for accurate time synchronization.
4. Automotive: Infotainment systems and event recorders.
5. Medical Devices: Patient monitors and diagnostic equipment needing precise timing.
Its integrated EEPROM also aids in storing configuration data, enhancing reliability in power-critical applications.
1. Consumer Electronics: Smartwatches, appliances, and IoT devices for timekeeping.
2. Industrial Systems: Automation, data loggers, and equipment requiring timestamping.
3. Networking: Routers, switches, and servers for accurate time synchronization.
4. Automotive: Infotainment systems and event recorders.
5. Medical Devices: Patient monitors and diagnostic equipment needing precise timing.
Its integrated EEPROM also aids in storing configuration data, enhancing reliability in power-critical applications.
Package
The MCP79410-I/SN is an 8-pin SOIC (Small Outline Integrated Circuit) package. It's a surface-mount device (SMD) with a 150-mil body width, commonly used for space-constrained applications. The "SN" suffix denotes the SOIC package type.
