PIC16C717/JW Microchip Technology, PIC16C717/JW Datasheet - Page 131
![IC MCU EPROM2KX14 A/D PWM 18CDIP](/photos/12/13/121351/150-18-cdip_sml.jpg)
PIC16C717/JW
Manufacturer Part Number
PIC16C717/JW
Description
IC MCU EPROM2KX14 A/D PWM 18CDIP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheets
1.PIC16F818-ISO.pdf
(6 pages)
2.PIC16C770-ISO.pdf
(220 pages)
3.PIC16C770-ISO.pdf
(6 pages)
4.PIC16C770-ISO.pdf
(8 pages)
Specifications of PIC16C717/JW
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
15
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
EPROM, UV
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
18-CDIP (0.300", 7.62mm) Window
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
- PIC16F818-ISO PDF datasheet
- PIC16C770-ISO PDF datasheet #2
- PIC16C770-ISO PDF datasheet #3
- PIC16C770-ISO PDF datasheet #4
- Current page: 131 of 220
- Download datasheet (4Mb)
12.12 Watchdog Timer (WDT)
The Watchdog Timer is a free running on-chip RC oscil-
lator, which does not require any external components.
This oscillator is independent from the processor clock.
If enabled, the WDT will run even if the main clock of
the device has been stopped, for example, by execu-
tion 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
FIGURE 12-11:
TABLE 12-7:
Address
2007h
81h,181h
Legend: Shaded cells are not used by the Watchdog Timer.
Note 1: See Register 12-1 for the full description of the configuration word bits.
Note 1: PSA and PS<2:0> are bits in the OPTION_REG register.
2002 Microchip Technology Inc.
2: WDTE bit in the configuration word.
Name
Config. bits
OPTION_REG
SUMMARY OF WATCHDOG TIMER REGISTERS
WATCHDOG TIMER BLOCK DIAGRAM
Enable Bit
WDT Timer
(1)
WDT
RBPU
From TMR0 Clock Source
( Figure 5-2 )
Bit 7
(2)
—
INTEDG
BODEN
Bit 6
0
1
M
U
X
PSA
MCLRE
T0CS
Bit 5
wake-up and continue with normal operation (Watch-
dog Timer Wake-up). The TO bit in the STATUS regis-
ter will be cleared upon a Watchdog Timer time-out.
The WDT can be permanently disabled by program-
ming the configuration bit WDTE to ’0’ (Section 12.1).
WDT time-out period values may be found in Table 15-
4. Values for the WDT prescaler may be assigned using
the OPTION_REG register.
0
PWRTE
Note:
T0SE
Bit 4
PIC16C717/770/771
Time-out
8 - to - 1 MUX
MUX
WDT
Postscaler
The SLEEP instruction clears the WDT and
the postscaler, if assigned to the WDT,
restarting the WDT period.
1
8
WDTE
Bit 3
PSA
PSA
To TMR0 ( Figure 5-2 )
FOSC2
(1)
Bit 2
PS2
PS<2:0>
FOSC1
(1)
DS41120B-page 129
Bit 1
PS1
FOSC0
Bit 0
PS0
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