MAX7219CNG MAX7219 TYPE DIP,LED MATRIX/DIGIT DISPLAY DRIVER

Detail MAX7219CNG MAX7219 TYPE DIP,LED MATRIX/DIGIT DISPLAY DRIVER

The MAX7219 are compact, serial input/output common-cathode display drivers that interface microprocessors (Ps) 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 8x8 static RAM that stores each digit. Only one external resistor is required to set the segment current for all LEDs. The MAX7219 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 Ps. Individual digits may be addressed and updated without rewriting the entire display. The MAX7219 also allow the user to select code-B decoding or no-decode for each digit.

The devices include a 150A 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. MAX7219: Typical Application Circuit MAX7219 Typical Application Circuit Enlarge+
Key Features
10MHz Serial Interface
Individual LED Segment Control
Decode/No-Decode Digit Selection
150A Low-Power Shutdown (Data Retained)
Digital and Analog Brightness Control
Display Blanked on Power-Up
Drive Common-Cathode LED Display
24-Pin DIP and SO Packages

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