5 VOLT PC REAL TIME CLOCK The **M48T86MH1F** is a real-time clock (RTC) module manufactured by **STMicroelectronics (ST)**. Below are its key specifications, descriptions, and features based on factual data from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** STMicroelectronics
- **Type:** Real-Time Clock (RTC) with NV SRAM
- **Package:** 28-pin SOIC (MH1F)
- **Supply Voltage:** 3V to 5.5V
- **Operating Temperature Range:** -40°C to +85°C
- **Timekeeping Accuracy:** ±1 minute per month at 25°C
- **NV SRAM Capacity:** 8KB (non-volatile static RAM)
- **Battery Backup:** Integrated lithium energy source (optional external battery support)
- **Interface:** Parallel (8-bit multiplexed address/data bus)
- **Clock Frequency:** 32.768 kHz
### **Descriptions:**
- The **M48T86MH1F** is a **non-volatile** real-time clock module with an embedded **8KB SRAM**, ensuring data retention during power loss.
- It includes **timekeeping functions** (seconds, minutes, hours, day, date, month, year, and century) with leap-year compensation.
- Designed for **industrial and embedded applications**, it provides reliable timekeeping and data storage.
- The **integrated lithium energy source** ensures continued operation in the absence of external power.
### **Features:**
- **Automatic Power-Fail Detection & Switchover** – Seamlessly switches to battery backup during power loss.
- **Low Power Consumption** – Optimized for battery-backed applications.
- **Leap-Year Compensation** – Valid up to the year 2100.
- **Programmable Square-Wave Output** – Configurable frequency output.
- **Watchdog Timer** – Enhances system reliability.
- **Industrial-Grade Reliability** – Operates in harsh environments (-40°C to +85°C).
- **Non-Volatile SRAM** – Retains data without power.
This information is strictly based on the manufacturer's datasheet and technical documentation.
