PIC18F6720-I/PT Microchip Technology, PIC18F6720-I/PT Datasheet - Page 252

IC MCU FLASH 64KX16 EE 64TQFP

PIC18F6720-I/PT

Manufacturer Part Number
PIC18F6720-I/PT
Description
IC MCU FLASH 64KX16 EE 64TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr

Specifications of PIC18F6720-I/PT

Program Memory Type
FLASH
Program Memory Size
128KB (64K x 16)
Package / Case
64-TFQFP
Core Processor
PIC
Core Size
8-Bit
Speed
25MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
52
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 12x10b
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
52
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, DV164136, DM183032, DM183022
Minimum Operating Temperature
- 40 C
On-chip Adc
12-ch x 10-bit
Package
64TQFP
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
MA180020 - MODULE PLUG-IN HPC EXPL 18F87J11XLT64PT5 - SOCKET TRAN ICE 64MQFP/TQFPAC164319 - MODULE SKT MPLAB PM3 64TQFPDV007003 - PROGRAMMER UNIVERSAL PROMATE II
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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PIC18F6520/8520/6620/8620/6720/8720
23.2
The Watchdog Timer is a free running, on-chip RC
oscillator, which does not require any external com-
ponents. This RC oscillator is separate from the RC
oscillator of the OSC1/CLKI pin. That means that the
WDT will run, even if the clock on the OSC1/CLKI and
OSC2/CLKO/RA6 pins of the device has been stopped,
for example, by execution of a SLEEP instruction.
During normal operation, a WDT time-out generates a
device Reset (Watchdog Timer Reset). If the device is
in Sleep mode, a WDT time-out causes the device to
wake-up and continue with normal operation (Watch-
dog Timer wake-up). The TO bit in the RCON register
will be cleared upon a WDT time-out.
The Watchdog Timer is enabled/disabled by a device
configuration bit. If the WDT is enabled, software exe-
cution may not disable this function. When the WDTEN
configuration bit is cleared, the SWDTEN bit enables/
disables the operation of the WDT.
REGISTER 23-15: WDTCON REGISTER
DS39609B-page 250
Watchdog Timer (WDT)
bit 7-1
bit 0
bit 7
Unimplemented: Read as ‘0’
SWDTEN: Software Controlled Watchdog Timer Enable bit
1 = Watchdog Timer is on
0 = Watchdog Timer is turned off if the WDTEN configuration bit in the configuration register = 0
Legend:
R = Readable bit
- n = Value at POR
U-0
U-0
U-0
W = Writable bit
‘1’ = Bit is set
U-0
The WDT time-out period values may be found in the
Electrical Specifications section under parameter #31.
Values for the WDT postscaler may be assigned using
the configuration bits.
23.2.1
Register 23-15 shows the WDTCON register. This is a
readable and writable register, which contains a control
bit that allows software to override the WDT enable
configuration bit, only when the configuration bit has
disabled the WDT.
Note 1: The CLRWDT and SLEEP instructions
2: When a CLRWDT instruction is executed
U-0
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
clear the WDT and the postscaler, if
assigned to the WDT and prevent it from
timing out and generating a device Reset
condition.
and the postscaler is assigned to the
WDT, the postscaler count will be cleared,
but the postscaler assignment is not
changed.
CONTROL REGISTER
U-0
 2004 Microchip Technology Inc.
x = Bit is unknown
U-0
SWDTEN
R/W-0
bit 0

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