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Product Description TM1638 is an LED ( Light Emitting Diode Display ) drive control special circuit with keyboard scanning interface. It integrates MCU digital interface, data latch , LED high voltagedrive,keyboard scanning and other circuits. Mainly used in high-end display drive of refrigerators, airconditioner home theaters an other products.
Product Features ·Product name:TM1638 scanning module ·Adopt TM1638 digital tube driver chip to drive common anode LED digital tube. ·The biggest advantage: only 3 ordinary lO can be driven,no MCU scanning is needed, which saves MCU resources. ·With 8 8-segment digital tubes (including decimal point). ·2*8total 16 keys. ·Support 8 levels of brightness adjustment. ·Using power CMOS process ·Display mode 10 segments x 8 digits ·Key scan(8×3bit) ·Brightness adjustment circuit (duty cycle 8 levels adjustable) ·Serial interface(CLK,STB,DIO) ·Oscillation mode:RC oscillation (45OKHz+5%) ·Built-in power-on reset circuit ·Weight:34 g ·Color: as picture show ·Size:68mmx68mm/2.68"x2.68"(inch) (approx) ▪Function Introductios: ▪Only need 3-wire control. Adapts TM1638 digital tube drive chip. Common anode LED digital tube. ▪Only need three common IO and could drive, no need MCU scan , save MCU sources. ▪With 8 digital tube (including decimal point). ▪2*8 16 buttons. ▪Support 8 degree brightness adjustment.