Analog Devices MAX7221ENG+, LED display driver IC, 7 segment + DP, 8 digits, 4-wire serial interface, 4V to 5.5V supply, 330 mA supply current, through-hole 24-DIP (0.300", 7.62mm), -40°C to 85°C operating temperature, ROHS3 compliant, active lifecycle.
| Parameter | Value |
|---|---|
| Display type | LED |
| Mounting | Through Hole |
| Supply voltage | 4V ~ 5.5V |
| Current - supply | 330 mA |
| Interface | 4-Wire Serial |
| Operating temperature | -40°C ~ 85°C |
| Package | Tube |
| Configuration | 7 Segment + DP |
| Case | 24-DIP (0.300\", 7.62mm) |
| Digits or characters | 8 Digits |
It uses a 4-wire serial interface.
The 330 mA supply current is the total chip draw with all segments lit at full drive.
We source the MAX7221ENG+ through independent distribution channels.
Yes, the MAX7221ENG+ is pin-compatible with the MAX7219. Both use the same 24-DIP footprint, so you can swap them without board layout changes. The key difference is that the MAX7221 includes an additional 8x8 static RAM and a more flexible serial interface that supports daisy-chaining multiple devices.
The MAX7221ENG+ is designed for common-cathode LED displays. The segment drivers source current, and the digit drivers sink current. Common-anode displays require an external transistor array or a different driver part.