ht82m72e Holtek Semiconductor Inc., ht82m72e Datasheet - Page 2

• Manufacturer Part Number: ht82m72e
• Description: Ht82m72e/ht82m72a -- Rf One Channel Mouse 8-bit Otp Mcu
• Manufacturer: Holtek Semiconductor Inc.

Pin Assignment
Pin Description
Absolute Maximum Ratings
Supply Voltage ...........................V
Input Voltage..............................V
I
Total Power Dissipation .....................................500mW
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may
Rev. 1.20
OL
PA0~PA1
PA2/TMR
PA3
PA4/Z1
PA5/Z2
PA6~PA7
PB0~PB6
PD0~PD1
OSC1
OSC2
VSS
RES
VDD
BAT_IN
RF_OUT
LX
Pin Name
Total ..............................................................150mA
cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed
in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
I/O
I/O
I/O
I/O
O
O
I
I
I
I
Crystal or RC
Pull-high
Wake-up
Pull-high
Pull-high
Options
SS
SS
0.3V to V
0.3V to V
Bidirectional 8-bit input/output port. Each pin can be configured as a
wake-up input by a configuration option. Software instructions determine if
the pin is a CMOS output or Schmitt Trigger input. Configuration options de-
termine if the pins have pull-high resistors. PA2 is shared with the external
timer input pin TMR. PA4 and PA5 are shared with the Z1 and Z2 pin
Bidirectional 7-bit input/output port. Each nibble, PB0~PB3 and PB4~PB6.
Configuration options determine if the pins have pull-high resistors.
Bidirectional 2-bit input/output port. Each nibble, PD0~PD1. Configuration
options determine if the pins have pull-high resistors.
OSC1, OSC2 are connected to an external 6MHz or 27MHz crystal/resona-
tor for the internal system clock.
Negative power supply, ground
Schmitt trigger reset input. Active low
Positive power supply
Battery input
Internal Modulated RF Output
DC/DC LX switch
DD
SS
+6.0V
+0.3V
2
Storage Temperature ............................ 50 C to 125 C
Operating Temperature........................... 40 C to 85 C
I
OH
Total............................................................ 100mA
Description
HT82M72E/HT82M72A
May 22, 2008