ht82j30r Holtek Semiconductor Inc., ht82j30r Datasheet - Page 3

• Manufacturer Part Number: ht82j30r
• Description: Ht82j30r/ht82j30a -- 16 Channel A/d Mcu With Spi Interface
• Manufacturer: Holtek Semiconductor Inc.

Pin Description
Note:
Rev. 1.10
PA0~PA2
PA3/PFD
PA4/TMR
PA5/INT0
PA6/INT1
PA7
PB0/AN0~
PB7/AN7
PC0/AN8~
PC7/AN15
PD0/PWM0
PD1/SCS_A
PD2/SCK_A
PD3/SDI_A
PD4/SDO_A
PD5~PD6
PD7/SDO_B
PF0/SDI_B
PF1/SCK_B
PF2/SCS_B
OSC1
OSC2
RES
VSS
VDD
VREF
Pin Name
1. Each pin on PA can be chosen via configuration option to have a wake-up function.
2. Pins PB4~PB7, PC0, PC3~PC7, PD0, PD5 and PD6 only exist on the 44-pin package.
I/O
I/O
I/O
I/O
I/O
I/O
O
I
I
CMOS or NMOS
CMOS or NMOS
PD4, PD7 either
PB2, PB3 either
Crystal or RC
PD0 or PWM
PA3 or PFD
output type
output type
Pull-high
Wake-up
Pull-high
Pull-high
Pull-high*
Options
Pull-high
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. The PFD, TMR and external
interrupt inputs are pin-shared with PA3, PA4, and PA5, PA6 respectively.
Bidirectional 8-bit input/output port. Software instructions determine if the
pin is a CMOS output or Schmitt trigger input. Configuration options deter-
mine which pin on this port have pull-high resistors. PB is pin-shared with
the A/D input pins. The A/D inputs are selected via software instructions
Once selected as an A/D input, the I/O function and pull-high resistor func-
tions are disable automatically. PB2 and PB3 can be either CMOS or
NMOS output types selected via configuration option.
Bidirectional 8-bit input/output port. Software instructions determine if the
pin is a CMOS output or Schmitt trigger input. Configuration options deter-
mine which pin on this port have pull-high resistors. PC is pin-shared with
the A/D input pins. The A/D inputs are selected via software instructions
Once selected as an A/D input, the I/O function and pull-high resistor func-
tions are disabled automatically.
Bi-directional 8-bit input/output port. Software instructions determine if the
pin is a CMOS output or Schmitt trigger input. Configuration options deter-
mine which pin on this port have pull-high resistors. PD0 is pin-shared with
the PWM output selected via configuration option. PD1~PD4 are
pin-shared with SPI interface A. PD7 is pin-shared with the SPI interface B.
PD4 and PD7 can be either CMOS or NMOS output types selected via con-
figuration option.
Bidirectional 3-bit input/output port. Software instructions determine if the
pin is a CMOS output or Schmitt trigger input. Configuration options deter-
mine if the pins have pull-high resistors. PF0~PF2 are pin-shared with SPI
interface B
OSC1, OSC2 are connected to an external RC network or external crystal,
determined by configuration option, for the internal system clock. If the RC
system clock is selected, pin OSC2 can be used to measure the system
clock at 1/4 frequency.
Schmitt trigger reset input. Active low
Negative power supply, ground
Positive power supply
8-bit A/D reference voltage input pin
3
Description
HT82J30R/HT82J30A
March 13, 2008