MAX7221CWG+
LED Display & Drivers
Technical Specifications
| Type | Description |
|---|---|
| Interface | 4-Wire Serial Interface |
| Configuration | 8 Segment x 8 Digit |
| Quiescent Current (Iq) | 150uA |
| Segment Drive Current | 40mA |
| Digit Drive Current | 320mA |
| Supply Voltage | 4V~5.5V |
| Type | Description |
|---|---|
| Operating Temperature | 0°C~+70°C |
| Pd W | 0.941 W |
| Maximum Clock Speed | 10 MHz |
| Features | Power-up display blanking;BCD input latch function;Cascadable function;PWM dimming;Built-in display RAM;Lamp test function |
| Package / Case | SOIC-24-300mil |
Product Introduction
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 8×8 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 150 μA 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.
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
Applications
- Bar-Graph Displays
- Panel Meters
- Industrial Controllers
- LED Matrix Displays
Datasheet
Alternative Parts
Common MAX7221CWG+ alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
Sourcing MAX7221CWG+ from China? SZ Procure helps international buyers navigate the Shenzhen electronics market and locate suitable supplier options for specific component requirements.
For MAX7221CWG+, we can check current supplier availability, compare quotations from multiple sources, coordinate purchasing, and arrange pre-shipment inspection and shipment consolidation according to your requirements.
Need MAX7221CWG+? Send us your required quantity and specifications for a sourcing check and quotation.