8-Digit, Microprocessor-Compatible, LED Display Decoder Driver The ICM7228AIBIZ is a device manufactured by **INTERSIL** (now part of Renesas Electronics). Below are its key specifications, descriptions, and features based on available factual information:
### **Specifications:**
- **Manufacturer:** INTERSIL
- **Part Number:** ICM7228AIBIZ
- **Type:** 8-Digit Microprocessor-Compatible LED Display Driver
- **Package:** 28-Pin PDIP (Plastic Dual In-Line Package)
- **Operating Voltage:** **4.5V to 6V**
- **Logic Family:** CMOS
- **Display Type:** Drives **7-segment LED displays** (common cathode)
- **Digits Supported:** **8 digits**
- **Interface:** **Microprocessor-compatible** (parallel or serial)
- **Multiplexing:** **Dynamic display multiplexing**
- **Current Sourcing:** **Up to 25mA per segment**
- **Operating Temperature Range:** **-40°C to +85°C**
### **Descriptions:**
- The ICM7228AIBIZ is an **8-digit LED display driver** designed for **microprocessor-based systems**.
- It integrates **segment drivers, digit drivers, and control logic** to simplify interfacing with LED displays.
- Supports **BCD or hexadecimal input decoding** for driving 7-segment displays.
- Features **internal multiplexing** to reduce external component count.
### **Features:**
1. **Microprocessor-Compatible:** Can be interfaced directly with **4-bit or 8-bit microprocessors**.
2. **Multiplexed Display Drive:** Reduces wiring complexity by **time-division multiplexing** digits.
3. **On-Chip Decoder:** Converts **BCD or hex inputs** into 7-segment outputs.
4. **Brightness Control:** Adjustable via **external resistor or PWM**.
5. **Low Power Consumption:** CMOS technology ensures **efficient power usage**.
6. **Wide Operating Voltage:** Supports **4.5V to 6V** for flexibility in different systems.
7. **High Output Drive:** Capable of **sourcing up to 25mA per segment** for bright LED displays.
This information is based on the manufacturer's datasheet and technical documentation. For detailed electrical characteristics and timing diagrams, refer to the official datasheet.
