HT46R47 Pin function: PA3\/PFD 8-bit bidirectional input\/output, PA2 8-bit bidirectional input\/output, PA1 8-bit bidirectional input\/output, PA0 8-bit bidirectional input\/output, PB3\/AN3 4-bit bidirectional input\/output, PB2\/AN2 4-bit bidirectional input, PB1\/ANl 4-bit bidirectional input and 1 output.
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PBO\/ANO 4-bit bidirectional tool output, VSS ground, PDO\/PWM bidirectional input\/output, RES Schmidt trigger reset input, VDD power supply, OSC1 oscillation signal, OSC2 oscillation signal, PA7 8-bit bidirectional input\/output, PA6 8-bit bidirectional tool output, PA5\/ INT 8-bit bidirectional input 2 output, PA4\/TMR 8-bit bidirectional input l output.