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UPD16682 Datasheet(PDF) 11 Page - NEC |
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UPD16682 Datasheet(HTML) 11 Page - NEC |
11 / 31 page Data Sheet S13368EJ3V0DS00 11 µµµµ PD16682 4. PIN I/O CIRCUITS AND RECOMMENDED CONNECTION OF UNUSED PINS The input/output circuit type of each pin and recommended connection of unused pins are shown in the following table. Pin Name I/O Recommended Connection of Unused Pins Notes P,/S Input Mode setting pin 1 /CS1 Input Connect to VSS CS2 Input Connect to VDD /RD(E) Input Connect to VDD (80 series interface), connect to VDD or VSS (serial interface) /WR (R,/W) Input Connect to VDD or VSS (serial interface) C86 Input Mode setting pin 1 D0 to D5 Input/Output Leave open (when using serial interface) 4 D6 (SCL) Input/Output D7 (SI) Input/Output A0 Input Data/command setting pin 2 TESTOUT Output Leave open /RES Input Connect to VDD CLS Input Mode setting pin 1 FR Input/Output Leave open (when using master mode, M,/S = H) FRS Output Leave open /DOF Input/Output Leave open (when using master mode, M,/S = H) M,/S Input Mode setting pin 1 CL Input/Output Display clock 3 HPM Input Mode setting pin 1 IRS Input Mode setting pin 1 TEST1 Input Leave open 4 TEST2 Input Leave open 4 TEST3 Input Leave open 4 TEST4 Output Leave open TEST5 Output Leave open Notes 1. Connect to VDD or VSS according to the selected mode. 2. Input microcontroller output from VDD or VSS according to the selected register. 3. This pin is an output when M,/S = H and CLS = H but should otherwise be used to input the display clock. 4. These pins are pulled down to VSS in the IC. |
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