Product Details
MAX7219CNG+ Serially Interfaced, 8-Digit LED Display Drivers 24-Pin
DIP
Description
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 8x8
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
slewrate-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 codeB decoding or
no-decode for each digit. The devices include a 150µA low-power
shutdown mode, analog and digital brightness control, a scanlimit
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
Application:
Bar-Graph Displays
Industrial Controllers
Panel Meters
LED Matrix Displays
Company Profile
CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and
Shenzhen. We are an independent Distributor of Electronic
Components,established in 2008. AS a growing fast company, CM GROUP
is renowned for its world-class efficiency, excellent services, and
extraordinary ability to supply electronic components that are hard
to find and even obsolete. We have taken pride in our innovation,
reliability and service, especially in the semiconductor
marketplace.
Our distribution brands include XILINX,ALTERA,ATMEL, INFINEON,
ST,SAMSUNG,TEXAS
INSTRUMENTS,ON,TOSHIBA,,MICROCHIP,CYPRESS,FREESCALE,etc. We
distributes over 200,000 products ranging from semiconductors to
resistors, capacitors, diodes, inductors, connectors, transistors,
sensors and so on.
Our mission is to meet and exceed all the expecations of what we
supply to customers.