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UPD753036GCA Datasheet(PDF) 11 Page - NEC |
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UPD753036GCA Datasheet(HTML) 11 Page - NEC |
11 / 88 page 11 µPD753036, 753036(A) Data Sheet U11353EJ4V0DS00 3.2 Non-Port Pins (2/2) Pin Name Input/Output Alternate Function State after I/O Circuit Function Reset Type Note 1 LCDCLNote 2 Output P30 Clock output for externally expanded driver Input E-B SYNCNote 2 Output P31 Clock output for externally expanded driver sync Input E-B X1 Input – Crystal/ceramic connection pin for the main – – X2 – system clock oscillator. When inputting the external clock, input the external clock to pin X1, and the reverse phase of the external clock to pin X2. XT1 Input – – – XT2 – RESET Input – System reset input (low level active) – B IC – – Internally connected. Connect directly to VDD.– – VDD – – Positive power supply – – VSS – – GND – – Notes 1. Circled characters indicate the Schmitt-trigger input. 2. These pins are provided for future system expansion. At present, these pins are used only as pins P30 and P31. Crystal connection pin for the subsystem clock oscillator. When the external clock is used, input the external clock to pin XT1 and the reverse phase of the external clock to pin XT2. Pin XT1 can be used as a 1-bit input (test) pin. |
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