PIC16F721-I/SO Microchip Technology, PIC16F721-I/SO Datasheet - Page 114
![MCU PIC 4K FLASH 20-SOIC](/photos/19/6/190622/4696162_sml.jpg)
PIC16F721-I/SO
Manufacturer Part Number
PIC16F721-I/SO
Description
MCU PIC 4K FLASH 20-SOIC
Manufacturer
Microchip Technology
Series
PIC® XLP™ 16Fr
Datasheets
1.PIC16F722-ISS.pdf
(8 pages)
2.PIC16LF720-ISS.pdf
(244 pages)
3.PIC16F720-ISO.pdf
(36 pages)
4.PIC16F720-ISO.pdf
(8 pages)
5.PIC16F721-IML.pdf
(6 pages)
Specifications of PIC16F721-I/SO
Core Size
8-Bit
Program Memory Size
7KB (4K x 14)
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Core Processor
PIC
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Number Of I /o
17
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
20-SOIC (0.300", 7.50mm Width)
Controller Family/series
PIC16F
No. Of I/o's
18
Ram Memory Size
256Byte
Cpu Speed
16MHz
No. Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- PIC16F722-ISS PDF datasheet
- PIC16LF720-ISS PDF datasheet #2
- PIC16F720-ISO PDF datasheet #3
- PIC16F720-ISO PDF datasheet #4
- PIC16F721-IML PDF datasheet #5
- Current page: 114 of 244
- Download datasheet (3Mb)
PIC16F/LF720/721
15.3
The PWM mode generates a Pulse-Width Modulated
signal on the CCP1 pin. The duty cycle, period and
resolution are determined by the following registers:
• PR2
• T2CON
• CCPR1L
• CCP1CON
In Pulse-Width Modulation (PWM) mode, the CCP
module produces up to a 10-bit resolution PWM output
on the CCP1 pin.
Figure 15-3
operation.
Figure 15-4
signal.
For a step-by-step procedure on how to set up the CCP
module for PWM operation, refer to
“Setup for PWM
FIGURE 15-3:
DS41430A-page 114
Note
CCPR1H
Duty Cycle Registers
Comparator
1:
2:
CCPR1L
PWM Mode
PR2
TMR2
Comparator
The 8-bit timer TMR2 register is concatenated with
the 2-bit internal system clock (F
prescaler, to create the 10-bit time base.
In PWM mode, CCPR1H is a read-only register.
shows a simplified block diagram of PWM
(2)
shows a typical waveform of the PWM
(Slave)
Operation”.
(1)
SIMPLIFIED PWM BLOCK
DIAGRAM
Clear Timer2,
toggle CCP1 pin and
latch duty cycle
CCP1CON<5:4>
S
R
Q
OSC
Section 15.3.8
), or 2 bits of the
TRIS
CCP1
The PWM output
(period) and a time that the output stays high (duty
cycle).
FIGURE 15-4:
15.3.1
In PWM mode, the CCP1 pin is multiplexed with the
PORT data latch. The user must configure the CCP1
pin as an output by clearing the associated TRIS bit.
Note:
Pulse Width
TMR2 = 0
CCPX PIN CONFIGURATION
Clearing the CCP1CON register will
relinquish CCP1 control of the CCP1 pin.
Period
(Figure
CCP PWM OUTPUT
TMR2 = CCPR1L:CCP1CON<5:4>
2010 Microchip Technology Inc.
15-4) has a time base
TMR2 = PR2
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