Datasheet TM1637 (Titan Micro Electronics) - 8

LED Drive Control Special Circuit
TM1637
Hardware connection drawing Nixie tube in circuit diagram is common anode one.
SEG1 a SEG1 a SEG1 a a SEG2 a a b SEG2 b SEG2 b SEG3 f b c SEG3 f b c SEG3 f b c g SEG4 g g d GRID6 SEG4 d GRID5 SEG4 d GRID4 SEG5 e c e SEG5 e c e SEG5 e c e d SEG6 d d f SEG6 f SEG6 f SEG7 dp dp dp g SEG7 g SEG7 g SEG8 SEG8 dp dp SEG8 dp SEG1 a SEG1 a SEG1 a a SEG2 a a b SEG2 b SEG2 b SEG3 f b c SEG3 f b c SEG3 c f b g SEG4 g g d GRID3 SEG4 d GRID2 SEG4 d GRID1 SEG5 e c e SEG5 e c e SEG5 ee c d SEG6 d d f SEG6 f SEG6 f SEG7 dp g dp SEG7 g SEG7 g dp SEG8 SEG8 SEG8 dp dp dp VCC SEG1 R1 R2 GND K2 SEG1 SEG1/KS1 K1 10K 10K SEG2 SEG2 TM1637 SEG2/KS2 CLK CLK 1 U GND SEG3 C SEG3/KS3 DIO SEG3 V 2 SEG4 C M SEG4/KS4 VDD SEG5 C Interface DIO SEG5/KS5 GRID1 GRID1 SEG4 SEG6 SEG6/KS6 GRID2 GRID2 100P 100P VCC SEG7 SEG7/KS7 GRID3 GRID3 SEG5 SEG8 SEG8/KS8 GRID4 GRID4 GND GRID6 GRID6 GRID5 GRID5 SEG6 104 100uF SEG7 SEG8 GND
Note:
1. filtering capacitor between VDD and GND should be arranged on PCB plate as close to TM1637 chip as possible to strengthen filtering effect. 2. 100pF capacitor connected to the DIO, CLK communication port pull-up and pull-down can reduce interference to radio communications port. 3. Since blue-ray nixie tube break over step-down voltage is 3V, TM1637 power supply should be 5V. 8 ©Titan Micro Electronics www.titanmec.com V2.4