M4T28-BR12SH1

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M4T28-BR12SH1

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SNAPHAT BATT/CRYSTAL FOR SOIC

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Thông số kỹ thuật

thuộc tính Giá trị
Package / Case Tube
Series Timekeeper®, Snaphat®
Part Status Active
Type Battery and Crystal
Battery Chemistry Lithium
Capacity 48mAh
Voltage - Rated 2.8 V
Frequency 32.768 kHz
Load Capacitance 12.5 pF

Tổng quan

Description

The M4T28-BR12SH1 is a real-time clock (RTC) module with battery backup, designed for timekeeping in embedded systems. Key features include:
- Low power consumption (ideal for battery-operated devices).
- I²C interface for easy microcontroller communication.
- Integrated crystal oscillator for accurate timekeeping.
- Battery backup (maintains time during power loss).
- Calendar functions (seconds, minutes, hours, day, date, month, year).
Commonly used in IoT devices, data loggers, and industrial systems, it ensures reliable time tracking even in power interruptions.

Pinout

The M4T28-BR12SH1 is a Timekeeper RAM (TKRAM) device from STMicroelectronics, combining SRAM and a real-time clock (RTC).
- Pin Count: 24 pins (DIP package).
- Key Functions:
- 2KB SRAM (non-volatile with battery backup).
- RTC with seconds, minutes, hours, day, date, month, and year.
- Battery backup input for data retention.
- I²C or 3-wire serial interface for communication.
- Programmable alarms and watchdog timer.
Used in embedded systems for timekeeping and data storage.

Manufacturer

The M4T28-BR12SH1 is a real-time clock (RTC) module manufactured by STMicroelectronics, a multinational semiconductor and electronics company.
STMicroelectronics is a leading global technology firm specializing in integrated circuits (ICs) for automotive, industrial, consumer electronics, and IoT applications. Known for innovation in microcontrollers, sensors, and power management, it serves industries requiring high-reliability components.
The M4T28-BR12SH1 is a low-power RTC with battery backup, commonly used in embedded systems for timekeeping.

Application

The M4T28-BR12SH1 is a real-time clock (RTC) module with a battery backup, commonly used in applications requiring precise timekeeping. Key application areas include:
- Embedded systems (e.g., IoT devices, industrial controllers)
- Data loggers (timestamping sensor data)
- Medical equipment (time-sensitive operations)
- Automotive electronics (event recording, diagnostics)
- Consumer electronics (smart appliances, wearables)
- Telecom & networking (synchronization in routers/switches)
Its low power consumption and battery backup ensure reliable timekeeping during power outages.

Package

The M4T28-BR12SH1 is a surface-mount device (SMD) package, specifically a 12-pin SOP (Small Outline Package). It is compact and designed for automated PCB assembly. The "BR" in the part number may indicate a specific variant or manufacturer series. Check the datasheet for exact dimensions and pinout details.

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