Maxim MAX7219CWG+ LED Display Driver IC Surface Mount

The MAX7219/MAX7221 are compact, serial input/output common-cathode display drivers that interface microprocessors (μPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8×8 static RAM that stores each digit. Only one external resistor is required to set the segment current for all LEDs. The MAX7221 is compatible with SPI™, QSPI™, and MICROWIRE™, and has slew-rate-limited segment drivers to reduce EMI. A convenient 4-wire serial interface connects to all common μPs. Individual digits may be addressed and updated without rewriting the entire display. The MAX7219/MAX7221 also allow the user to select code-B decoding or no-decode for each digit. The devices include a 150μA low-power shutdown mode, analog and digital brightness control, a scan-limit register that allows the user to display from 1 to 8 digits, and a test mode that forces all LEDs on. For applications requiring 3V operation or segment blinking, refer to the MAX6951 data sheet.

Features:-
● 10MHz Serial Interface
● Individual LED Segment Control
● Decode/No-Decode Digit Selection
● 150μA Low-Power Shutdown (Data Retained)
● Digital and Analog Brightness Control
● Display Blanked on Power-Up
● Drive Common-Cathode LED Display
● Slew-Rate Limited Segment Drivers
for Lower EMI (MAX7221)
● SPI, QSPI, MICROWIRE Serial Interface (MAX7221)
● 24-Pin DIP and SO Packages

 

Applications:-

● Bar-Graph Displays.

● Panel Meters.

● Industrial Controllers.

● LED Matrix Displays.