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Maxim Integrated
MAX7219 Serial Interfaced, LED Display Driver Datasheet
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Product Details
The MAX7219 is a 7-segment 8-Digit LED Driver
which can be connected to a microprocessor or microcontroller
for serial control and data transfer. The MAX7219 includes a
BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and
an 8x8 static RAM that stores each digit.
The MAX7219 has a 4-wire serial interface and individual digits may be addressed
without rewriting the entire display.
Features
- 10MHz Serial Interface
- Individual LED Segment Control
- Decode/No-Decode Digit Selection
- 150µA Low-Power Shutdown (Data Retained)
- Digital and Analog Brightness Control
- Drive Common-Cathode LED Display
Pin Layout
Pin Description
| Pin Number | Description |
|---|---|
| 1 | Din - Serial Data In |
| 2 | DIG0 - Digit 0 Drive Line |
| 3 | DIG4 - Digit 4 Drive Line |
| 4 | GND - Ground |
| 5 | DIG6 - Digit 6 Drive Line |
| 6 | DIG2 - Digit 2 Drive Line |
| 7 | DIG3 - Digit 3 Drive Line |
| 8 | DIG7 - Digit 7 Drive Line |
| 9 | GND - Ground |
| 10 | DIG5 - Digit 5 Drive Line |
| 11 | DIG1 - Digit 1 Drive Line |
| 12 | LOAD(CS) - Chip Select |
| 13 | CLK - Serial Clock |
| 14 | SEGA - Segment A Drive Line |
| 15 | SEGF - Segment F Drive Line |
| 16 | SEGB - Segment B Drive Line |
| 17 | SEGG - Segment G Drive Line |
| 18 | ISET - Peak Segment Current |
| 19 | V+ - Positive Supply Voltage |
| 20 | SEGC - Segment C Drive Line |
| 21 | SEGE - Segment E Drive Line |
| 22 | SEGDP - Segment Decimal Point Drive Line |
| 23 | SEGD - Segment D Drive Line |
| 24 | DOUT - Serial Data Out |
Dimensional Drawing
Technical Data
Datasheet
| Analog Devices Website - Datasheet for MAX7219CNG |
|
Application Notes