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ICM7243 from INTERSIL

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15.625ms

ICM7243

Manufacturer: INTERSIL

LED Display Decoder Driver, 8-Character, Microprocessor Compatible, Alpha Numeric

Partnumber Manufacturer Quantity Availability
ICM7243 INTERSIL 734 In Stock

Description and Introduction

LED Display Decoder Driver, 8-Character, Microprocessor Compatible, Alpha Numeric The ICM7243 is a real-time clock (RTC) integrated circuit manufactured by **Intersil** (now part of Renesas Electronics). Below are the specifications, descriptions, and features based on the available knowledge base:

### **Specifications:**
- **Supply Voltage:** Typically operates at **5V**.
- **Clock Frequency:** Supports standard **32.768 kHz** crystal for timekeeping.
- **Timekeeping Accuracy:** Maintains time with **seconds, minutes, hours, day, date, month, and year**.
- **Interface:** Parallel or serial interface (varies by model).
- **Operating Temperature Range:** Typically **0°C to +70°C** (commercial grade).
- **Package Options:** Available in **DIP (Dual In-line Package)** and **SOIC (Small Outline IC)**.

### **Descriptions:**
- The ICM7243 is a **CMOS-based real-time clock (RTC)** designed for timekeeping applications.
- It includes **on-chip oscillator circuitry** for driving an external **32.768 kHz crystal**.
- Features **battery backup support** to maintain timekeeping during power loss.
- Used in **embedded systems, industrial controls, and consumer electronics** requiring accurate timekeeping.

### **Features:**
- **Low Power Consumption:** Optimized for battery-backed applications.
- **Automatic Leap Year Compensation:** Handles leap years up to **2099**.
- **Programmable Alarms:** Supports time-based interrupt generation.
- **Battery Backup Mode:** Maintains timekeeping with minimal power draw.
- **CMOS Technology:** Ensures low power and high noise immunity.

For exact pin configurations and application notes, refer to the **Intersil ICM7243 datasheet**.

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