Instant Quote

Home > Integrated Circuits ICs > MAX7219

MAX7219

8-digit serial LED display driver, BCD decoder, 10MHz SPI, common-cathode, 24-DIP/SOIC

7250

Effective Inventory
Go to Inquiry

Image for reference only

Manufacturer Part：

MAX7219

Package：

24-PDIP / 24-SOIC Wide (0.3in)

Brand：
Product Categories：
Quality Commitment
Shipping & Payment
Service & Packaging
Product Manual
Other recommendations you may be interested in.

STM32L072RBT6

TPS65217CRSLR

SN74HC273NSR

ADE7953ACPZ-RL

SN74HC138N

ATMEGA328-AU

AD826ARZ-REEL7

TPA0211DGNR

Description

Product Overview

The MAX7219 from Analog Devices (Maxim Integrated) is a serially interfaced 8-digit LED display driver that interfaces microprocessors to 7-segment numeric LED displays. It includes BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and 8×8 static RAM in 24-pin DIP and SO packages.

Key Specifications

Manufacturer Analog Devices (Maxim)
Type 8-Digit LED Display Driver
Display Type Common-Cathode
Number of Digits 8
Serial Interface Speed 10MHz
Operating Voltage 4.0V to 5.5V
Segment Drive Current -40mA typ (set by RSET)
Digit Drive Current 320mA sink
Shutdown Current 150uA
Display Scan Rate 800Hz (8 digits)
Operating Temperature 0C to +70C (C grade), -40C to +85C (E grade)
Package 24-DIP, 24-SOIC

Features

  • 10MHz serial interface
  • Independent LED segment control
  • Decode/no-decode digit selection
  • 150uA low-power shutdown (data retained)
  • Digital and analog brightness control
  • Display blanked on power-up
  • Drive common-cathode LED displays
  • Only one external resistor sets segment current
  • Individual digit addressing without rewriting entire display
  • 24-pin DIP and SO packages

Applications

  • 7-segment LED numeric displays
  • Bar-graph displays
  • LED matrix displays
  • Industrial panel meters
  • Point-of-sale terminals

The Analog Devices MAX7219 is a compact serial input/output common-cathode display driver that interfaces microprocessors to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. On-chip features include 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. A convenient 4-wire serial interface connects to all common microprocessors. Individual digits may be addressed and updated without rewriting the entire display. The device includes 150uA low-power shutdown mode, analog and digital brightness control, and a scan-limit register for 1 to 8 digit display.

The MAX7219 operates as a serially controlled LED display driver with four key subsystems: 1) Serial Interface: Data is clocked in via DIN on CLK rising edges as 16-bit words (8-bit address, 8-bit data). LOAD/CS latches the data on its rising edge. Multiple devices can be daisy-chained through DOUT. 2) Decode Logic: The decode-mode register selects BCD code-B decoding or no-decode for each digit. BCD mode automatically maps numeric values to 7-segment patterns including hex characters. 3) Multiplex Scan: An internal oscillator drives the scanning of up to 8 digits at 800Hz, turning on one digit at a time while the corresponding segment data drives the anodes. The 8×8 static RAM maintains display data without processor intervention. 4) Brightness Control: An external RSET resistor sets maximum segment current. Digital brightness control uses a 16-step PWM duty cycle (1/32 to 31/32) for fine adjustment.

Pin Name Type Function
1 DIN Input Serial data input
2-3,5-8,10-11 DIG0-DIG7 Output Digit drive lines (active low sink)
4,9 GND Ground Ground (both pins must be connected)
12 LOAD Input Load/latch data (rising edge)
13 CLK Input Serial clock (max 10MHz)
14-17,20-23 SEG A-G, DP Output Segment drive outputs (source)
18 ISET Input Current set (connect RSET to V+)
19 V+ Power Supply voltage (4.0-5.5V)
24 DOUT Output Serial data output (for daisy-chain)
  • 7-segment LED panel meter displays in industrial equipment
  • 8×8 LED matrix displays for signage
  • Multi-digit counter and timer displays
Manufacturer Part Number Package Notes
ADI/Maxim MAX7221 24-DIP/SOIC SPI compatible, slew-rate limited
ADI/Maxim MAX6951 16-QSOP 3V, with segment blinking
TI TLC59282DBQR 24-SOIC 16-channel LED driver
ADI/Maxim MAX6950 16-QSOP 8-digit, SPI, with blinking
Recommend Parts

ADE7953ACPZ-RL

Single-phase energy metering IC, <0.1% error, SPI, shunt/CT, LFCSP-28

Brand:

Package:

LFCSP-28 (5×5 mm)
In stock:
5098pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

AD826ARZ-REEL7

Dual high-speed op amp, 50MHz, 350V/µs, drives unlimited Cload, 8-SOIC

Brand:

Package:

8-SOIC (3.9×5.0×1.5 mm)
In stock:
7183pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

AD5231BRUZ10-REEL7

1024-position nonvolatile digital potentiometer, 10kΩ, SPI, EEMEM, 16-TSSOP, REEL7 packaging

Brand:

Package:

16-TSSOP (5.0×4.4mm)
In stock:
9739pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

AD202JN

Transformer-coupled isolation amplifier, 750Vrms isolation, 2kHz bandwidth, 10-DIP, with integrated isolated power

Brand:

Package:

10-Pin DIP
In stock:
14100pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

AD7891AS1

8-ch 12-bit 454kSPS ADC DAS, bipolar inputs, parallel/serial, 44-MQFP, 5V supply

Brand:

Package:

MQFP-44 (10 x 10 mm)
In stock:
9131pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry

AD7226KRZ

Quad 8-bit voltage output DAC, 4-channel, MPU-compatible, 20-SOIC, no external trims

Brand:

Package:

SOIC-20 (Wide) (7.5 x 12.8 mm)
In stock:
5393pcs

Cargo cycle: 3~7 Days
The minimum order is 1

Go to Inquiry
Quality Assurance

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Company
insights
Industries
All Products
Integrated Circuits
C&I Devices
Discrete
Memory Chips
MPUs & MCUs