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MAX7219 LED Driver
MAX7219
Analog Devicesinterface io display
The MAX7219/MAX7221 are serial input/output drivers for 7-segment LED displays, bar graphs, or individual LEDs. They feature on-chip RAM, current control, and a 4-wire serial interface for easy microprocessor connection.
In stock
Specifications
14- Operating Voltage
- 4.0 V
- Operating Voltage
- 5.5 V
- Interface
- SPI
- Interface
- QSPI
- Interface
- MICROWIRE
- Clock Speed
- 10 MHz
- Operating Supply Current
- 150 µA
- Shutdown Supply Current
- 150 µA
- Operating Temperature Range
- 0 °C
- Operating Temperature Range
- 70 °C
- Operating Temperature Range
- -40 °C
- Operating Temperature Range
- 85 °C
- Package
- 24-Pin DIP
- Package
- 24-Pin SO
Pinout
24| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | DIN | SPI | Serial-Data Input |
| 2 | DIG 0 | GPIO | Digit Drive Line (sinks current) |
| 3 | DIG 1 | GPIO | Digit Drive Line (sinks current) |
| 4 | GND | GND | Ground |
| 5 | DIG 2 | GPIO | Digit Drive Line (sinks current) |
| 6 | DIG 3 | GPIO | Digit Drive Line (sinks current) |
| 7 | DIG 4 | GPIO | Digit Drive Line (sinks current) |
| 8 | DIG 5 | GPIO | Digit Drive Line (sinks current) |
| 9 | GND | GND | Ground |
| 10 | DIG 6 | GPIO | Digit Drive Line (sinks current) |
| 11 | DIG 7 | GPIO | Digit Drive Line (sinks current) |
| 12 | LOAD | SPI | Load-Data Input (MAX7219 only) |
| 13 | CLK | SPI | Serial-Clock Input |
| 14 | SEG A | GPIO | Segment Drive Line |
| 15 | SEG B | GPIO | Segment Drive Line |
| 16 | SEG C | GPIO | Segment Drive Line |
| 17 | SEG D | GPIO | Segment Drive Line |
| 18 | ISET | ADC | Set Segment Current Input |
| 19 | V+ | POWER | Positive Supply Voltage |
| 20 | SEG E | GPIO | Segment Drive Line |
| 21 | SEG DP | GPIO | Decimal Point Drive Line |
| 22 | SEG G | GPIO | Segment Drive Line |
| 23 | SEG F | GPIO | Segment Drive Line |
| 24 | DOUT | SPI | Serial-Data Output |
Interactive pinout
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MAX7219
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