PIC16F819-I/SSTSL Microchip Technology, PIC16F819-I/SSTSL Datasheet - Page 71
![IC PIC MCU FLASH 2KX14 20SSOP](/photos/6/58/65895/150-20-ssop_sml.jpg)
PIC16F819-I/SSTSL
Manufacturer Part Number
PIC16F819-I/SSTSL
Description
IC PIC MCU FLASH 2KX14 20SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F818-ISO.pdf
(176 pages)
4.PIC16F818-ISO.pdf
(6 pages)
5.PIC16F818-ISO.pdf
(8 pages)
6.PIC16F818-ISO.pdf
(8 pages)
Specifications of PIC16F819-I/SSTSL
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F616T-ISL PDF datasheet
- PIC16F688T-ISL PDF datasheet #2
- PIC16F818-ISO PDF datasheet #3
- PIC16F818-ISO PDF datasheet #4
- PIC16F818-ISO PDF datasheet #5
- PIC16F818-ISO PDF datasheet #6
- Current page: 71 of 176
- Download datasheet (4Mb)
The maximum PWM resolution (bits) for a given PWM
frequency is given by the following formula.
EQUATION 9-3:
TABLE 9-3:
TABLE 9-4:
2004 Microchip Technology Inc.
0Bh,8Bh
10Bh,18Bh
0Ch
8Ch
86h
11h
92h
12h
15h
16h
17h
Legend:
Timer Prescaler (1, 4, 16)
PR2 Value
Maximum Resolution (bits)
Address
Note:
Resolution
INTCON
PIR1
PIE1
TRISB
TMR2
PR2
T2CON
CCPR1L
CCPR1H
CCP1CON
x = unknown, u = unchanged, - = unimplemented, read as ‘0’. Shaded cells are not used by PWM and Timer2.
If the PWM duty cycle value is longer than
the PWM period, the CCP1 pin will not be
cleared.
Name
PWM Frequency
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS AT 20 MHz
REGISTERS ASSOCIATED WITH PWM AND TIMER2
=
PORTB Data Direction Register
Timer2 Module Register
Timer2 Module Period Register
Capture/Compare/PWM Register 1 (LSB)
Capture/Compare/PWM Register 1 (MSB)
Bit 7
GIE
—
—
—
—
log
TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0 -000 0000 -000 0000
(
log(2)
PEIE
ADIF
ADIE
Bit 6
F
F
—
PWM
OSC
)
TMR0IE
CCP1X
bits
Bit 5
—
—
1.22 kHz 4.88 kHz 19.53 kHz 78.12 kHz 156.3 kHz 208.3 kHz
0xFF
CCP1Y
16
10
INTE
Bit 4
—
—
CCP1M3 CCP1M2 CCP1M1 CCP1M0 --00 0000 --00 0000
0xFF
SSPIF
SSPIE
RBIE
Bit 3
10
4
9.3.3
The following steps should be taken when configuring
the CCP module for PWM operation:
1.
2.
3.
4.
5.
Note:
Set the PWM period by writing to the PR2 register.
Set the PWM duty cycle by writing to the
CCPR1L register and CCP1CON<5:4> bits.
Make the CCP1 pin an output by clearing the
TRISB<x> bit.
Set the TMR2 prescale value and enable Timer2
by writing to T2CON.
Configure the CCP1 module for PWM operation.
TMR0IF
CCP1IF
CCP1IE
Bit 2
0xFF
10
1
SETUP FOR PWM OPERATION
The TRISB bit (2 or 3) is dependant upon
the
(CCPMX).
TMR2IF
TMR2IE
PIC16F818/819
INTF
Bit 1
setting
0x3F
1
8
TMR1IF -0-- 0000 -0-- 0000
TMR1IE -0-- 0000 -0-- 0000
RBIF
Bit 0
of
configuration
0x1F
0000 000x 0000 000u
1111 1111 1111 1111
0000 0000 0000 0000
1111 1111 1111 1111
xxxx xxxx uuuu uuuu
xxxx xxxx uuuu uuuu
POR, BOR
Value on
1
7
DS39598E-page 69
0x17
bit
Value on
all other
5.5
Resets
1
12
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