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MAX7221ENG+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX7221ENG+

Manufacturer: MAXIM

Serially Interfaced, 8-Digit, LED Display Drivers

Partnumber Manufacturer Quantity Availability
MAX7221ENG+ MAXIM 6300 In Stock

Description and Introduction

Serially Interfaced, 8-Digit, LED Display Drivers The MAX7221ENG+ is a serial input/output common-cathode display driver from **MAXIM** (now part of Analog Devices).  

### **Specifications:**  
- **Manufacturer:** MAXIM  
- **Type:** LED Display Driver  
- **Interface:** Serial (SPI-compatible)  
- **Supply Voltage:** 4V to 5.5V  
- **Output Current per Segment:** 40mA  
- **Number of Digits:** 8 (7-segment)  
- **Logic Input Voltage:** 3.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 24-Pin DIP (PDIP)  

### **Descriptions:**  
The MAX7221ENG+ is designed to drive 7-segment LED displays, bar graphs, or individual LEDs. It features a serial interface that allows easy connection to microcontrollers with minimal wiring. It includes an on-chip BCD decoder, multiplex scan circuitry, and segment drivers.  

### **Features:**  
- **SPI-Compatible Serial Interface** (3-wire)  
- **Individual LED Segment Control**  
- **Decode/No-Decode Digit Selection**  
- **Digital and Analog Brightness Control**  
- **Low-Power Shutdown Mode**  
- **Drive Common-Cathode LED Displays**  
- **Multiplexed Display Support**  

This IC is commonly used in digital panel meters, industrial displays, and other applications requiring LED control.

Application Scenarios & Design Considerations

Serially Interfaced, 8-Digit, LED Display Drivers

Alternative Part Number

  • ICM7218AIJI+ --: Direct 8-digit LED display driver with similar serial interface and multiplexing, from a different series so easily distinguishable.
  • HD7279A --: Serial LED display/keyboard driver with comparable functionality, different naming and widely used as a MAX7221 substitute.
  • TM1638 --: Integrated LED display and key-scan driver with serial control, a common lower-cost alternative from a different series.

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For immediate assistance, call us at +86 533 2716050 or email [email protected]

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