256 KBIT (32KB X8) TIMEKEEPER SRAM The **M48T35AV-10MH1** is a **Timekeeper SRAM** device manufactured by **STMicroelectronics (ST)**. Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Type:** Non-volatile SRAM (NVSRAM) with a built-in real-time clock (RTC).
- **Density:** 32K x 8 (256 Kbit).
- **Access Time:** **10 ns** (as indicated by "-10" in the part number).
- **Supply Voltage:** **4.5V to 5.5V**.
- **Operating Temperature Range:** **Commercial (0°C to +70°C)**.
- **Package:** **28-pin DIP (Dual In-line Package)**.
- **Data Retention:** Minimum **10 years** without power (using an integrated lithium energy source).
- **Clock Accuracy:** ±1 minute per month at 25°C.
### **Descriptions:**
- The **M48T35AV-10MH1** combines a **static RAM (SRAM)** with a **real-time clock (RTC)** and an **automatic power-fail control circuit**.
- It includes an **integrated lithium battery** for data retention when external power is lost.
- Designed for applications requiring **non-volatile memory with timekeeping functionality**, such as industrial controllers, networking equipment, and embedded systems.
### **Features:**
- **Non-volatile SRAM with RTC** – Ensures data retention and timekeeping during power loss.
- **Automatic Power-Fail Chip Deselect** – Protects data during power transitions.
- **Low Power Consumption** – Optimized for battery-backed operation.
- **Industrial-Grade Reliability** – Suitable for long-term embedded applications.
- **JEDEC Standard Pinout** – Compatible with standard 28-pin DIP sockets.
- **Battery Voltage Monitoring** – Provides early warning of low battery conditions.
This device is ideal for systems requiring **persistent memory storage with accurate timekeeping**, ensuring data integrity even during power interruptions.
