ht82j31a Holtek Semiconductor Inc., ht82j31a Datasheet - Page 3

• Manufacturer Part Number: ht82j31a
• Description: 16 Channel A/d Mcu With Spi Interface
• Manufacturer: Holtek Semiconductor Inc.

Pin Description
Note: * The pull-high resistors of each I/O port are controlled by configuration options.
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. 1.00
OL
PA0~PA2
PA3/PFD
PA4/TMR
PA5/INT_A
PA6/INT_B
PA7
PB0~PB3
PC1
PC2
PD1/SCS_A
PD2/SCK_A
PD3/SDI_A
PD4/SDO_A
PD7/SDO_B
PF0/SDI_B
PF1/SCK_B
PF2/SCS_B
OSC1
OSC2
VSS
RES
VDD
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
I/O
I/O
O
I
I
Crystal or RC
PA3 or PFD
Pull-high*
Pull-high*
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
determine if the pins have pull-high resistors. The PFD, TMR and external
interrupt input are pin-shared with PA3, PA4, and PA5, PA6 respectively.
Bidirectional 4-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. PB2 and PB3 have a CMOS or
NMOS output option.
Bidirectional 2-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.
Bidirectional 5-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.
PD1~PD4 are pin-shared with SPI interface A
PD4 and PD7 have a CMOS or NMOS output option
PD7 is pin-shared with SPI interface B
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 is 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.
Negative power supply, ground
Schmitt trigger reset input. Active low
Positive power supply
DD
SS
+6.0V
+0.3V
3
Storage Temperature ............................ 50 C to 125 C
Operating Temperature........................... 40 C to 85 C
I
OH
Total............................................................ 100mA
Description
September 19, 2007
HT82J31A