PIC18F8720-I/PT Microchip Technology, PIC18F8720-I/PT Datasheet - Page 253

• Manufacturer Part Number: PIC18F8720-I/PT
• Description: IC MCU FLASH 64KX16 EE 80TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F8720-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 128KB (64K x 16)
• Package / Case: 80-TFQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 68
• Eeprom Size: 1K x 8
• Ram Size: 3.75K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3.75 KB
• Interface Type: I2C/SPI/USART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 68
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DM183032, DM183022, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 16-ch x 10-bit
• Package: 80TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 25 MHz
• Operating Supply Voltage: 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT80PT3 - SOCKET TRAN ICE 80MQFP/TQFPAC164320 - MODULE SKT MPLAB PM3 80TQFPAC174011 - MODULE SKT PROMATEII 80TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

23.2.2
The WDT has a postscaler that can extend the WDT
Reset period. The postscaler is selected at the time of
the device programming by the value written to the
CONFIG2H Configuration register.
FIGURE 23-1:
TABLE 23-2:
 2004 Microchip Technology Inc.
CONFIG2H
RCON
WDTCON
Legend: Shaded cells are not used by the Watchdog Timer.
Name
WDT POSTSCALER
Note:
Configuration bit
WDTEN
PIC18F6520/8520/6620/8620/6720/8720
SUMMARY OF WATCHDOG TIMER REGISTERS
IPEN
Bit 7
—
—
WDPS2:WDPS0 are bits in register CONFIG2H.
WATCHDOG TIMER BLOCK DIAGRAM
WDT Timer
Bit 6
—
—
—
SWDTEN bit
Bit 5
—
—
—
Bit 4
—
RI
—
8-to-1 MUX
WDTPS2
Postscaler
Time-out
Bit 3
WDT
TO
—
8
WDTPS2
Bit 2
PD
—
WDTPS2:WDTPS0
WDTPS0
Bit 1
POR
—
DS39609B-page 251
SWDTEN
WDTEN
Bit 0
BOR