Hign-concerned Chemical : NonePackage : TQFPis_customized : YesModel Number : MAX7219 Dot Matrix LED Display ModuleOperating Temperature : normalDissipation Power : LOWSupply Voltage : 5VApplication : WatchCondition : NewType : Drive ICBrand Name : Your Cee : Mainland China
The MAX7219 is an integrated serial input / output common cathode display driver. It is connected to a microprocessor and an 8-digit 7-segment digital LED display. It can also be connected to a bar graph display or 64 independent LEDs. It includes an on-chip B-type BCD ener, multi-channel scanning loop, segment word driver, and an 8 * 8 static RAM for storing each data. only?an external register is used to set the segment current of each LED. A convenient four-wire serial interface can be connected to all general-purpose microprocessors. Each data can be addressed without updating all displays during update. MAX721 9 also allows users to choose whether to ene or not to ene each data.?The entire device includes a 150uA low-power shutdown mode, analog and digital brightness control, a scan limit register that allows users to display 1-8 bits of data, and a detection mode that allows all LEDs to emit light.?Only 3 IO ports are needed to drive 1 dot matrix! No flashing when dot matrix display! Support cascading!?Product :1. A single module can drive an 8 * 8 common negative dot matrix2. Module working voltage: 5 V3. Module size: 13cm * 6.4cm * 1.3cm4. With 32 fixing screw holes, hole diameter 3mm5. Module with input and output interface, support multiple modules cascade?Wiring Instructions:?1. The left side of the module is the input port, and the right side is the output port.2. When controlling a single module, only need to connect the input port to the CPU3. When multiple modules are cascaded, the input terminal of the first module is connected to the CPU, the output terminal is connected to the input terminal of the second module, the output terminal of the second module is connected to the input terminal of the third module, and so on.?Instruction Manual:Take 51 microcontroller as an example:VCC — 5VGND — GNDDIN — P2.2CS — P2.1CLK — P2.0?





