Skip to main content
Log in
Analog Devices MAX7221CWG+ — Discrete Semiconductors

MAX7221CWG+ LED Driver, 8-Digit 7-Segment, 24-SOIC

MPNMAX7221CWG+
End of Life

Analog Devices MAX7221CWG+, LED display driver IC, 7 Segment + DP configuration, 8 Digits, 4-Wire Serial interface, 4V ~ 5.5V supply, 330 mA supply current, 0°C ~ 70°C operating temperature, 24-SOIC surface-mount package, Tube.

$11.66Ref. price · indicative, final on quote
Packaging24-SOIC (0.295", 7.50mm Width)
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX7221CWG+ specifications
ParameterValue
Display typeLED
MountingSurface Mount
Supply voltage4V ~ 5.5V
Current - supply330 mA
Interface4-Wire Serial
Operating temperature0°C ~ 70°C
PackageTube
Configuration7 Segment + DP
Case24-SOIC (0.295\", 7.50mm Width)
Digits or characters8 Digits

Product details

The MAX7221CWG+ is a serial-input, common-cathode display driver that interfaces to a 7-segment LED display plus decimal point, handling up to 8 digits.

The 330 mA supply current covers the driver IC plus the LED segment current it sinks. The actual current depends on the LED forward voltage and the segment current set by an external resistor (RSET).

It is not specified for industrial or automotive use.

24-SOIC package — board-level fit

The MAX7221CWG+ comes in a 24-SOIC package with a 7.50 mm body width (0.295″). It is a surface-mount device, reflow-solderable, and fits standard SOIC-24 footprints. The supplier device package is 24-SOIC. No special handling beyond normal SMD assembly is required.

Frequently asked questions

What is the price of MAX7221CWG+?

Pricing is confirmed at quote time against an RFQ. Contact us with your target quantity for a current price.

Can MAX7221CWG+ replace MAX7219?

The MAX7221CWG+ and MAX7219 are both 8-digit LED display drivers from Analog Devices, but they are not pin-compatible. The MAX7221 uses a 4-wire serial interface (SPI) with a chip-select line, while the MAX7219 uses a 3-wire serial interface. The MAX7221 also includes a shutdown mode and a more flexible segment-current control. For a drop-in replacement, verify your PCB footprint and firmware protocol before substituting.

What is the pinout of MAX7221CWG+?

The MAX7221CWG+ is in a 24-SOIC package. Key pins include DIN (data in), DOUT (data out for daisy-chaining), CLK (serial clock), CS (chip select), ISET (segment current set resistor), and segment/digit drive outputs for eight digits. Refer to the datasheet for the full pinout diagram.

Does MAX7221CWG+ require external transistors for driving LEDs?

No, the MAX7221CWG+ integrates the segment and digit drivers internally. It can directly drive common-cathode LED displays up to 8 digits without external transistors, as long as the per-segment current is set by an external resistor (RSET) and the total supply current stays within the 330 mA rating.