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NJU3101 - 4-BIT SINGLE CHIP TINY CONTROLLER

General Description

No.

SYMBOL 1 PA0 2 PA1 3 PA2 4 PA3 FUNCTION 4-bit Input / Output PORTA.

Selects a terminal circuit for PORT grouped with 4 lines from follows by the mask option.

C-MOS Input Terminal with Pull-up Resistance(IA) C-MOS Input Terminal(IC) C-MOS Output Terminal(OB) Maker Testing Termin

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NJU3101 n TERMINAL DESCRIPTION No. SYMBOL 1 PA0 2 PA1 3 PA2 4 PA3 FUNCTION 4-bit Input / Output PORTA. Selects a terminal circuit for PORT grouped with 4 lines from follows by the mask option. · C-MOS Input Terminal with Pull-up Resistance(IA) · C-MOS Input Terminal(IC) · C-MOS Output Terminal(OB) Maker Testing Terminal with Pull-down Resistance 5 TEST INPUT The terminal is recommended to connect to GND. Internal Oscillator Terminals. 6 OSC1 INPUT Connects a device selected from the ceramic or the crystal 7 OSC2 OUTPUT resonator, or the resistor, to these terminals for the internal oscillator. In the external clock operation, OSC1 is the external clock input terminal and OSC2 is normally open terminal. VSS – Power Source (0V) 8 9 INPUT RESET Terminal.