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LD1970 データシート(PDF) 3 Page - LDT Co., Ltd |
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LD1970 データシート(HTML) 3 Page - LDT Co., Ltd |
3 / 26 page Ver 4.0 3 LD1970 16 Segment x 12 Grid VFD Driver with Key Scan Pin Description Pin name Type Description Pin No. QFN LQFP,MQFP LED1 ~ LED4 O LED Output Pin 1~4 1~4 OSC I/O Oscillator I/O Pin A resistor is connected to this pin to determine the oscillation frequency. 5 5 DOUT O Data Output Pin (N-Channel, Open-Drain) This pin outputs serial data at the falling edge of the shift clock (starting from the lower bit) 7 6 DIN (Schmitt Trigger) I Data Input Pin This pin inputs serial data at the rising edge of the shift clock (starting from the lower bit) 8 7 CLK (Schmitt Trigger) I Clock Input Pin This pin reads serial data at the rising edge and outputs data at the falling edge of the shift clock 9 8 STB (Schmitt Trigger) I Serial Interface Strobe Pin The data input after the STB has fallen is processed as a command. When this pin is “HIGH”, CLK is ignored. 10 9 K1, K2 I Key Data Input Pins The data inputted to these pins is latched at the end of the display cycle. 11,12 10,11 VSS G Logic Ground Pin 13,48 12,44 VDD1, VDD2 P(+) Logic Positive Power Pin 47,14 43, 13 SG1/KS1 ~ SG16/KS16 O High-Voltage Segment Output Pins, Also acts as the Key Source. 15~32 14~29 VEE P(-) Pull-Down Level / Negative Power Pin 33 30 SG17/GR12 ~ SG24/GR5 O High-Voltage Segment/Grid Output Pins 34~41 31~38 GR1~GR4 O High-Voltage Grid Output Pins 43~46 39~42 |
同様の部品番号 - LD1970 |
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同様の説明 - LD1970 |
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