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MAX7221CNG from MAXIM,MAXIM - Dallas Semiconductor

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MAX7221CNG

Manufacturer: MAXIM

Serially Interfaced / 8-Digit LED Display Drivers

Partnumber Manufacturer Quantity Availability
MAX7221CNG MAXIM 101 In Stock

Description and Introduction

Serially Interfaced / 8-Digit LED Display Drivers The MAX7221CNG is a serial-input/output common-cathode display driver from Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated (now Analog Devices)  
- **Part Number:** MAX7221CNG  
- **Package Type:** 24-Pin PDIP (Plastic Dual In-Line Package)  
- **Operating Voltage:** 4V to 5.5V  
- **Supply Current:** 150µA (typical)  
- **Maximum Segment Current:** 40mA per segment  
- **Maximum Display Drive Current:** 320mA (8 segments × 40mA)  
- **Data Transfer Rate:** 10MHz (SPI-compatible serial interface)  
- **Operating Temperature Range:** 0°C to +70°C  
- **Digit Drive:** 8 digits (7-segment numeric or 8x8 matrix)  
- **Brightness Control:** Digital (16-step)  
- **Decoding:** On-chip BCD or no-decode modes  
- **Cascadable:** Supports multiple devices in a single chain  

### **Descriptions:**  
The MAX7221CNG is a compact, serial-interfaced LED display driver designed to control 7-segment numeric LED displays, bar graphs, or an 8x8 LED matrix. It includes an on-chip BCD decoder, multiplex scan circuitry, segment drivers, and a serial interface that reduces microcontroller I/O requirements.  

### **Features:**  
- **SPI/QSPI/MICROWIRE-Compatible Serial Interface**  
- **Individual Segment Control**  
- **Decode/No-Decode Digit Selection**  
- **Digital and Analog Brightness Control**  
- **Low-Power Shutdown Mode (150µA)**  
- **Test Mode (All LEDs On)**  
- **24-Pin DIP Package for Easy Prototyping**  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Serially Interfaced / 8-Digit LED Display Drivers

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