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UPD75512GF Datasheet(PDF) 10 Page - NEC |
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UPD75512GF Datasheet(HTML) 10 Page - NEC |
10 / 64 page µPD75512(A) 10 3.2 NON-PORT PINS Input/ Pin Input/ Shared Function When Reset Output Name Output Pin Circuit Type* TI0 Input P13 The external event pulse input for the timer/event — B -C counter. PTO0 Output P20 Timer/event counter output Input E-B PCL Output P22 Clock output Input E-B BUZ Output P23 Fixed frequency output (for buzzer output or Input E-B system clock trimming) SCK0 Input/ P01 Serial clock input/output Input F -A output SO0/SB0 Input/ P02 Serial data output Input F -B output Serial bus input/output SI0/SB1 Input/ P03 Serial data input Input M -C output Serial bus input/output INT4 Input P00 Edge detection vector interrupt input (both rising — B edge and falling edge detection) INT0 P10 Edge detection vector Synchronized interrupt input with clock Input (detection edge selectable) — B -C INT1 P11 Asynchronous INT2 Input P12 Edge detection testable input Asynchronous — B -C (rising edge detection) KR0-KR3 Input P60-P63 Parallel falling edge detection testable input Input F -C KR4-KR7 Input P70-P73 Parallel falling edge detection testable input Input F -A SCK1 Input/ P81 Serial clock input/output Input F output SO1 Output P82 Serial data output Input E SI1 Input P83 Serial data input Input B AN0-AN3 — Y Input A/D converter analog input — AN4-AN7 P150-P153 Y-A AVREF Input — A/C converter reference voltage input — Z AVSS — — A/D converter reference ground — — Pins for connecting the crystal ceramic oscillator to the main system clock generator. When X1, X2 Input — inputting the external clock, input the external — — clock to pin X1, and the reverse phase of the external clock to pin X2. XT1 Input Pins for connecting the crystal oscillator to the — subsystem clock generator. When the external — — clock is used, inputs the external clock to pin XT1. In this case, pin XT2 must be left open. RESET Input — System reset input — B PPO Output P80 Timer/pulse generator pulse output Input E IC — — Internally Connected. Connect directly to VSS.— — VDD — — Positive power supply — — VSS — — GND — — *: The number enclosed with a circle indicates Schmidt trigger input. XT2 — |
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