PIC18F67J11T-I/PT Microchip Technology, PIC18F67J11T-I/PT Datasheet - Page 285

• Manufacturer Part Number: PIC18F67J11T-I/PT
• Description: IC PIC MCU FLASH 64KX16 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F67J11T-I/PT

• Core Size: 8-Bit
• Program Memory Size: 128KB (64K x 16)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 52
• Program Memory Type: FLASH
• Ram Size: 3930 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 11x10b
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Controller Family/series: PIC18
• No. Of I/o's: 52
• Ram Memory Size: 3930Byte
• Cpu Speed: 48MHz
• No. Of Timers: 5
• No. Of Pwm: RoHS Compliant
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 3904 B
• Interface Type: EUSART, I2C, MSSP, SPI
• Maximum Clock Frequency: 48 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, DV164136, DM183022, DM183032
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 15 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162091 - HEADER MPLAB ICD2 18F87J11 64/80MA180020 - MODULE PLUG-IN HPC EXPL 18F87J11AC164327 - MODULE SKT FOR 64TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: PIC18F67J11T-I/PTTR

23.2
For PIC18F87J10 family devices, the WDT is driven by
the INTRC oscillator. When the WDT is enabled, the
clock source is also enabled. The nominal WDT period is
4 ms and has the same stability as the INTRC oscillator.
The 4 ms period of the WDT is multiplied by a 16-bit
postscaler. Any output of the WDT postscaler is selected
by a multiplexor, controlled by the WDTPS bits in Config-
uration Register 2H. Available periods range from about
4 ms to 135 seconds (2.25 minutes depending on
voltage, temperature and WDT postscaler). The WDT
and postscaler are cleared whenever a SLEEP or
CLRWDT instruction is executed, or a clock failure
(primary or Timer1 oscillator) has occurred.
FIGURE 23-1:
REGISTER 23-9:
TABLE 23-3:
© 2006 Microchip Technology Inc.
RCON
WDTCON
Legend: — = unimplemented, read as ‘0’. Shaded cells are not used by the Watchdog Timer.
WDTPS3:WDTPS0
Name
All Device Resets
INTRC Oscillator
Watchdog Timer (WDT)
SWDTEN
CLRWDT
bit 7-1
bit 0
Sleep
IPEN
Bit 7
SUMMARY OF WATCHDOG TIMER REGISTERS
—
WDT BLOCK DIAGRAM
WDTCON: WATCHDOG TIMER CONTROL REGISTER
bit 7
Unimplemented: Read as ‘0’
SWDTEN: Software Controlled Watchdog Timer Enable bit
1 = Watchdog Timer is on
0 = Watchdog Timer is off
Legend:
R = Readable bit
-n = Value at POR
Note 1: This bit has no effect if the Configuration bit, WDTEN, is enabled.
U-0
—
Bit 6
Enable WDT
—
—
U-0
WDT Counter
—
Bit 5
—
—
128
INTRC Control
4
U-0
Bit 4
—
Preliminary
Programmable Postscaler
RI
—
W = Writable bit
‘1’ = Bit is set
1:1 to 1:32,768
Bit 3
U-0
—
TO
—
23.2.1
The WDTCON register (Register 23-9) is a readable
and writable register. The SWDTEN bit enables or dis-
ables WDT operation. This allows software to override
the WDTEN Configuration bit and enable the WDT only
if it has been disabled by the Configuration bit.
Note 1: The CLRWDT and SLEEP instructions
2: When a CLRWDT instruction is executed,
Bit 2
U-0
PD
WDT
—
—
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
CONTROL REGISTER
clear the WDT and postscaler counts
when executed.
the postscaler count will be cleared.
Reset
(1)
Bit 1
POR
PIC18F87J10
—
U-0
—
SWDTEN
Bit 0
BOR
x = Bit is unknown
U-0
—
DS39663D-page 283
Wake-up from
Power-Managed
Modes
WDT
Reset
Reset Values
SWDTEN
on page
R/W-0
50
50
bit 0
(1)