Details

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BUY MAX7219CWG+ https://www.utsource.net/itm/p/4643020.html
IC DRIVER LED DISP 8DGT 24-SOIC

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	4.0	-	5.5	V
Output Current (Sink)	ISNK	Per Segment	-	120	-	μA
Output Current (Source)	ISRC	Per Segment	-	120	-	μA
Operating Temperature	TOPR		-40	-	85	°C
Storage Temperature	TSTG		-65	-	150	°C
Digital Inputs	VIN	High Level	2.0	-	Vcc	V
Digital Inputs	VIN	Low Level	0	-	0.8	V
Power Dissipation	PD	Maximum	-	-	730	mW

Instructions for MAX7219CWG+

1. Power Supply: Connect the Vcc pin to a power supply between 4.0V and 5.5V.
2. Ground Connection: Ensure a solid ground connection to the GND pin.
3. Digital Input Levels: Use digital input levels within the specified range for reliable operation.
4. Temperature Considerations: Operate within the specified temperature ranges to avoid damage or unreliable performance.
5. Output Current Limitation: Do not exceed the maximum output current per segment to prevent damage to the device.
6. Power Dissipation: Keep the total power dissipation below the maximum limit to ensure safe operation.

For detailed application notes, timing diagrams, and more specific instructions, refer to the official datasheet provided by Maxim Integrated.

(For reference only)