MCP79412T-I/MS

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MCP79412T-I/MS

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IC RTC CLK/CALENDAR I2C 8-MSOP

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Spezifikationen

Attribut Wert
Package Tape & Reel (TR)
ProductStatus Active
Type Clock/Calendar
Features Alarm, Leap Year, Square Wave Output, SRAM, Unique ID
MemorySize 64B, 1Kb
TimeFormat HH:MM:SS (12/24 hr)
DateFormat YY-MM-DD-dd
Interface I²C, 2-Wire Serial
Voltage-Supply 1.8V ~ 5.5V
Voltage-SupplyBattery 1.3V ~ 5.5V
Current-Timekeeping(Max) 1.2µA @ 3.3V
OperatingTemperature -40°C ~ 85°C
MountingType Surface Mount
Package/Case 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)

Übersicht

Description

The MCP79412T-I/MS is a low-power real-time clock/calendar (RTCC) with battery backup, manufactured by Microchip. It features an integrated oscillator for accurate timekeeping, even during power loss, and supports I²C communication for easy interfacing with microcontrollers. Key functions include timestamping, alarms, and a unique 64-bit serial number for device identification.
With a wide operating voltage (1.8V–5.5V) and low power consumption, it’s ideal for battery-powered applications like IoT devices, embedded systems, and data loggers. The MCP79412T-I/MS also includes EEPROM for non-volatile data storage and a power-fail timestamp to record outages.
Housed in an 8-pin MSOP package, it’s compact and suitable for space-constrained designs. Its robust feature set and reliability make it a popular choice for precision timing applications.

Equivalent

Equivalent products to the MCP79412T-I/MS (Real-Time Clock/Calendar with SRAM) include:
- DS3231 (Maxim Integrated) – Higher accuracy, no SRAM.
- PCF8563 (NXP) – Basic RTC, no SRAM.
- RV-8803-C7 (Micro Crystal) – Low power, no SRAM.
- M41T62 (STMicroelectronics) – RTC with SRAM.
For exact replacements, check MCP79410/MCP79411 (same family, different features). Verify specs for compatibility.

Features

The MCP79412T-I/MS is a low-power real-time clock/calendar (RTCC) with battery backup and SRAM. Key features:
- I²C Interface: Supports 100/400 kHz communication.
- Battery Backup: Operates down to 1.8V (VBAT) for timekeeping during power loss.
- Timekeeping Accuracy: ±2ppm (0.5ppm typical) with digital trimming.
- Alarms: Two programmable alarms with interrupt output.
- SRAM: 64 bytes of battery-backed user memory.
- Power Management: Ultra-low power consumption (400nA in battery mode).
- Timestamping: Power-fail timestamp and event detection.
- Package: 8-pin MSOP for compact designs.
Ideal for embedded systems requiring precise timekeeping with minimal power.

Manufacturer

The MCP79412T-I/MS is manufactured by Microchip Technology Inc., a leading American semiconductor company specializing in microcontroller, mixed-signal, analog, and Flash-IP solutions. Founded in 1989 and headquartered in Chandler, Arizona, Microchip is known for its embedded control systems, serving industries like automotive, industrial, consumer, and IoT. The MCP79412T-I/MS is a real-time clock (RTC) device with battery backup, EEPROM, and unique ID capabilities, reflecting Microchip's focus on reliable, low-power components.

Application

The MCP79412T-I/MS is a versatile real-time clock (RTC) and SRAM chip with battery backup, commonly used in:
- Consumer Electronics: Smartwatches, appliances, and IoT devices for timekeeping.
- Industrial Systems: Automation, data loggers, and equipment requiring precise timing.
- Networking: Routers, switches, and servers for timestamping events.
- Automotive: Infotainment systems and dashboard clocks.
- Medical Devices: Patient monitors and diagnostic equipment needing accurate time records.
Its features include I²C interface, 64-byte SRAM, and alarm functions, making it ideal for low-power, time-sensitive applications.

Package

The MCP79412T-I/MS is available in an MSOP-8 package. This is a small, surface-mount package with 8 pins, suitable for compact PCB designs. The "MS" suffix in the part number indicates the MSOP (Mini Small Outline Package) form factor. It is commonly used in space-constrained applications.

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