ht82k73e Holtek Semiconductor Inc., ht82k73e Datasheet - Page 2

• Manufacturer Part Number: ht82k73e
• Description: 2.4ghz Keyboard Tx 8-bit Otp Mcu
• Manufacturer: Holtek Semiconductor Inc.

Pin Assignment
Pin Description
Rev. 1.00
PA0~PA1
PA2/TMR
PA3~PA7
PB0~PB7
PC0~PC3
PC4/SDO
PC5/SDI
PC6
PC7/SCLK
PD0~PD7
PE0/V1
PE1/V2
PE2/Z1
PE3/Z2
PE4/SCB
PE5/SCL
PE6/SDA
Pin Name
I/O
I/O
I/O
I/O
I/O
I/O
Pull-high or
Pull-high or
Wake-up
Wake-up
Wake-up
Wake-up
Wake-up
Pull-high
Pull-high
Pull-high
Options
None
None
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 determine if the
pins have pull-high resistors. PA2 is shared with the external timer input pin
TMR.
Bidirectional 8-bit input/output port. Each nibble, PB0~PB3 and PB4~PB7,
pin can be configured as wake-up inputs by configuration options. Software
instructions determine if the pin is a CMOS output or Schmitt Trigger input.
Configuration options determine if the pins have pull-high resistors.
Bidirectional 8-bit input/output port. Each nibble, PC0~PC3 andPC4~PC7,
can be configured as wake-up inputs by configuration options. Software in-
structions determine if the pin is a CMOS output or Schmitt Trigger input.
Configuration options determine if the pins have pull-high resistors. PC4,
PC5, PC7 are pins shared with SPI interface.
Bidirectional 8-bit input/output port. Each nibble, PD0~PD3 and PD4~PD7,
can be configured as wake-up inputs by configuration options. Software in-
structions determine if the pin is a CMOS output or Schmitt Trigger input.
Configuration options determine if the pins have pull-high resistors.
Bidirectional 7-bit input/output port. Each bit, PE0~PE3 can be configured as
wake-up inputs by configuration options. Software instructions determine if
the pin is a CMOS output or Schmitt Trigger input. Each nibble, PE0~PE3
and PE4~PE7,can be configuration options determine if the pins have
pull-high resistors. PE0 and PE1 are shared with the V1 and V2 pins. PE2
and PE3 are shared with the Z1 and Z2 pins. PE4 is shared with the SCB
pins. PE5 is shared with the SCL pins. PE6 is shared with the SDA pins.
2
Description
HT82K73E
April 16, 2008