16 KBIT (2KB X8) TIMEKEEPER SRAM The **M48T02150PC1** is a Timekeeping RAM (TKRAM) device manufactured by **STMicroelectronics**. Below are the key specifications, descriptions, and features based on the available knowledge base:
### **Specifications:**
- **Type:** Non-volatile SRAM (NVSRAM) with a built-in real-time clock (RTC).
- **Memory Capacity:** 2 KB (2048 x 8 bits).
- **Interface:** Parallel (8-bit).
- **Supply Voltage:** 4.5V to 5.5V.
- **Operating Temperature Range:** 0°C to +70°C (commercial grade).
- **Clock Accuracy:** ±1 minute per month at 25°C.
- **Battery Backup:** Integrated lithium energy source (typically lasts over 10 years).
- **Package:** 28-pin DIP (Dual In-line Package).
### **Descriptions:**
- The **M48T02150PC1** combines SRAM with a real-time clock and power-fail control circuitry.
- It retains data during power loss using an embedded lithium battery.
- Designed for applications requiring persistent timekeeping and data storage, such as industrial controls, medical devices, and embedded systems.
### **Features:**
- **Non-volatile SRAM:** Maintains data without external power.
- **Real-Time Clock (RTC):** Provides seconds, minutes, hours, day, date, month, and year functions.
- **Automatic Power-Fail Detection:** Switches to battery backup when main power is lost.
- **Low Power Consumption:** Optimized for battery-backed operation.
- **Industrial-Grade Reliability:** Robust design for long-term operation.
For detailed electrical characteristics and timing diagrams, refer to the official **STMicroelectronics datasheet**.
