PIC16LF1518-E/SP Microchip Technology, PIC16LF1518-E/SP Datasheet - Page 94
PIC16LF1518-E/SP
Manufacturer Part Number
PIC16LF1518-E/SP
Description
28-pin, 28KB Flash, 1024B RAM, 10-bit ADC, 2xCCP, SPI, MI2C, EUSART, 1.8V-3.6V 2
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheet
1.PIC16LF1517-IPT.pdf
(344 pages)
Specifications of PIC16LF1518-E/SP
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
28KB (16K x 14)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 17x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
*
Processor Series
PIC16LF151x
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
I2C, SPI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
25
Number Of Timers
3
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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PIC16(L)F1516/7/8/9
10.1
The WDT derives its time base from the 31 kHz
LFINTOSC internal oscillator. Time intervals in this
chapter are based on a nominal interval of 1ms. See
Section 25.0 “Electrical Specifications”
LFINTOSC tolerances.
10.2
The Watchdog Timer module has four operating modes
controlled by the WDTE<1:0> bits in Configuration
Word 1. See
10.2.1
When the WDTE bits of Configuration Word 1 are set to
‘11’, the WDT is always on.
WDT protection is active during Sleep.
10.2.2
When the WDTE bits of Configuration Word 1 are set to
‘10’, the WDT is on, except in Sleep.
WDT protection is not active during Sleep.
10.2.3
When the WDTE bits of Configuration Word 1 are set to
‘01’, the WDT is controlled by the SWDTEN bit of the
WDTCON register.
WDT protection is unchanged by Sleep. See
Table 10-1
TABLE 10-1:
TABLE 10-2:
DS41452A-page 94
WDTE<1:0> = 00
WDTE<1:0> = 01 and SWDTEN = 0
WDTE<1:0> = 10 and enter Sleep
CLRWDT Command
Oscillator Fail Detected
Exit Sleep + System Clock = SOSC, EXTRC, INTOSC, EXTCLK
Exit Sleep + System Clock = XT, HS, LP
Change INTOSC divider (IRCF bits)
WDTE<1:0>
Independent Clock Source
WDT Operating Modes
11
10
01
00
for more details.
WDT IS ALWAYS ON
WDT IS OFF IN SLEEP
WDT CONTROLLED BY SOFTWARE
Table
WDT OPERATING MODES
WDT CLEARING CONDITIONS
10-1.
SWDTEN
X
X
1
0
X
Conditions
Device
Awake
Mode
Sleep
X
X
X
Disabled
Disabled
Disabled
Active
Active
Active
Mode
for the
WDT
Preliminary
10.3
The WDTPS bits of the WDTCON register set the
time-out period from 1ms to 256 seconds (nominal).
After a Reset, the default time-out period is 2 seconds.
10.4
The WDT is cleared when any of the following condi-
tions occur:
• Any Reset
• CLRWDT instruction is executed
• Device enters Sleep
• Device wakes up from Sleep
• Oscillator fail event
• WDT is disabled
• OST is running
See
10.5
When the device enters Sleep, the WDT is cleared. If
the WDT is enabled during Sleep, the WDT resumes
counting.
When the device exits Sleep, the WDT is cleared
again. The WDT remains clear until the OST, if
enabled, completes. See
Module (With Fail-Safe Clock Monitor)”
information on the OST.
When a WDT time-out occurs while the device is in
Sleep, no Reset is generated. Instead, the device
wakes up and resumes operation. The TO and PD bits
in the STATUS register are changed to indicate the
event. See
The
information.
Table 10-2
STATUS
Time-Out Period
Clearing the WDT
Operation During Sleep
Section 3.0 “Memory Organization”
for more information.
register
Cleared until the end of OST
2010 Microchip Technology Inc.
(Register
Section 5.0 “Oscillator
Unaffected
Cleared
WDT
3-1)
for
for more
more
and
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