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.
