BUY MAX7219CNG https://www.utsource.net/itm/p/1431534.html
Serially Interfaced, 8-Digit LED Display Drivers
Description: The MAX7219CNG is a compact, serial input/output common-cathode display driver that interfaces microprocessors (μPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Features: rn Operating Supply Voltage: 4.5 V to 5.5 V rn Low Power Consumption: 10 mA rn Serial Input/Output: SPI, QSPI, MICROWIRE rn Brightness Control rn Shutdown Mode rn Low-Power Shutdown Mode rn Internal Oscillator rn No Multiplexing Required rn No External Components Required rn Data Latches rn Decode/No-Decode Digit Selection rn Segment Blanking rn Error Detection rn Temperature Range: -40°C to +85°C Applications: rn Digital Voltmeter rn Process Control rn Industrial Instrumentation rn Digital Panel Meters rn Bar-Graph Displays rn LED Displays rn Battery-Powered Systems (For reference only)