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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPD750064CU датащи(PDF) 11 Page - NEC |
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UPD750064CU датащи(HTML) 11 Page - NEC |
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11 / 82 page  11 µPD750064, 750066, 750068, 750064(A), 750066(A), 750068(A) Data Sheet U10165EJ2V0DS00 3.2 Non-port Pins (2/2) Pin Name Input/Output Alternate Function After Reset I/O Circuit Function TypeNote X1 Input – – – 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 – – Ground potential – – Note Circuit types enclosed in brackets indicate the Schmitt trigger input. Crystal/ceramic connection pin for the main system clock oscillation. When inputting the external clock, input the external clock to pin X1, and the inverted phase of the external clock to pin X2. Crystal connection pin for the subsystem clock oscillation. When the external clock is used, input the external clock to pin XT1, and the inverted phase of the external clock to pin XT2. Pin XT1 can be used as a 1-bit input (test) pin. |
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