GENERAL DESCRIPTION
Pin Assignment Z 1 1 2 3 4 5 6 7 8 Z 2 V D D N C V S S O S C I C L K D A T A 1 6 1 5 1 4 1 3 1 2 1 1 1 0 9 Y 2 Y 1 X 2 X 1 T E S T L B R 0 R B H T 8 2 M 3 9 A 1 6 D IP 1 August 5, 1999 HT82M39A Pin DESCRIPTION
Pin No. 1, 2 3 4 5 6 7 8 Pin Name Z1, Z2 VDD NC VSS OSCI CLK DATA I I I/O I/O I/O I I DESCRIPTION
²Z² axis input supports two kinds of scroller input; optomechanical and mechanical. Positive power supply pin No connection Negative power supply pin 2MHz RC oscillator for system frequency with external pull-high resistor and built-in C ²CLK I/O²: PS/2 mouse CLK line. NMOS open drain output with 5kW pull-high resistor. ²DATA I/O²: PS/2 mouse DATA line. NMOS open drain output with 5kW pull-high resistor. Right Button: Normal pull-low (50kW), Pressing the button connects to high. Rolling Button: Normal pull-low (50kW), Pressing the button connects to high. Left Button: Normal pull-low (50kW), Pressing the button connects to high. For IC manufacture testing, user should leave it floating.
Holtek Semiconductor
