Feature

●MAX7219 chip
●It includes 150µA low power shutdown mode, analog and digital brightness control, scan-limit register for users to display 1-8 digits, test mode to forced all LEDs.
●Only three IO ports are required to drive 8 digit tubes. 8-bit digital tube will not flash when displayed. Supports cascade
●One common cathode digital tube of 0.36 inch 4 Compatible with 5V and 3.3V microcontrollers.
●Applications: Bar graph display, 7 segment display, industrial controller, panel meter, LED matrix display


Description

Specifications:
On-chip includes a BCD code B decoder, multiplex scan circuit, segment and digit driver, and an 8x8 static RAM to store each digit.
Only one external resistor required to set the segment current of all LEDs.

Connection:
VCC → 5V
GND → GND
DIN → P00
CS → P01
CLK → P02
Features:
1. 10MHz serial interface
2. Independent LED segment control
3. No digit decoding/decoding
4. 150µA low power shutdown (data retention)
5. Digital and analog brightness control
6. Display blank when power on
7. Common cathode LED display
8. Segment driver with limited thru rate
9. 24-pin DIP and SO package
Includes:
5 x MAX7219 8-bit Digital Display Module
10 x Pin headers