PIC16LF737-I/SO Microchip Technology, PIC16LF737-I/SO Datasheet - Page 93
![IC PIC MCU FLASH 4KX14 28SOIC](/photos/6/59/65909/150-28-soic_sml.jpg)
PIC16LF737-I/SO
Manufacturer Part Number
PIC16LF737-I/SO
Description
IC PIC MCU FLASH 4KX14 28SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Specifications of PIC16LF737-I/SO
Core Processor
PIC
Core Size
8-Bit
Speed
10MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
7KB (4K x 14)
Program Memory Type
FLASH
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Processor Series
PIC16LF
Core
PIC
Data Bus Width
8 bit
Data Ram Size
368 B
Interface Type
AUSART, CCP, I2C, MSSP, SPI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
25
Number Of Timers
8
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
Data Rom Size
368 B
Height
2.31 mm
Length
17.87 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2 V
Width
7.49 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
PIC16LF737-I/SOR
PIC16LF737-I/SOR
PIC16LF737-I/SOR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC16LF737-I/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
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9.6
In Pulse-Width Modulation mode, the CCPx pin
produces up to a 10-bit resolution PWM output. Since
the CCP1 pin is multiplexed with the PORTC data latch,
the TRISC<2> bit must be cleared to make the CCP1
pin an output.
Figure 9-3 shows a simplified block diagram of the
CCP module in PWM mode.
For a step-by-step procedure on how to set up the CCP
module for PWM operation, see Section 9.6.3 “Setup
for PWM Operation”.
FIGURE 9-3:
A PWM output (Figure 9-4) has a time base (period)
and a time that the output stays high (duty cycle). The
frequency of the PWM is the inverse of the period
(1/period).
FIGURE 9-4:
2004 Microchip Technology Inc.
(Note 1)
Note:
CCPR1H (Slave)
Note 1: The 8-bit timer is concatenated with the 2-bit
Duty Cycle Registers
Comparator
CCPR1L
TMR2
TMR2
Reset
TMR2 = PR2
PR2
Comparator
PWM Mode (PWM)
internal Q clock or 2 bits of the prescaler to create
the 10-bit time base.
Duty Cycle
Clearing the CCP1CON register will force
the CCP1 PWM output latch to the default
low level. This is not the PORTC I/O data
latch.
Period
(1)
Clear Timer,
CCP1 pin and
latch D.C.
TMR2 = Duty Cycle
SIMPLIFIED PWM BLOCK
DIAGRAM
PWM OUTPUT
CCP1CON<5:4>
TMR2
Reset
TMR2 = PR2
R
S
Q
TRISC<2>
RC2/CCP1
9.6.1
The PWM period is specified by writing to the PR2
register. The PWM period can be calculated using the
following formula:
EQUATION 9-1:
PWM frequency is defined as 1/[PWM period].
When TMR2 is equal to PR2, the following three events
occur on the next increment cycle:
• TMR2 is cleared
• The CCP1 pin is set (exception: if PWM duty
• The PWM duty cycle is latched from CCPR1L into
9.6.2
The PWM duty cycle is specified by writing to the
CCPR1L register and to the CCP1CON<5:4> bits. Up
to 10-bit resolution is available. The CCPR1L contains
the eight MSbs and the CCP1CON<5:4> contains the
two LSbs. This 10-bit value is represented by
CCPR1L:CCP1CON<5:4>. The following equation is
used to calculate the PWM duty cycle in time:
EQUATION 9-2:
CCPR1L and CCP1CON<5:4> can be written to at any
time, but the duty cycle value is not latched into
CCPR1H until after a match between PR2 and TMR2
occurs (i.e., the period is complete). In PWM mode,
CCPR1H is a read-only register.
cycle = 0%, the CCP1 pin will not be set)
CCPR1H
Note:
PWM Duty Cycle = (CCPR1L:CCP1CON<5:4>) •
PWM Period = [(PR2) + 1] • 4 • T
PWM PERIOD
The Timer2 postscaler (see Section 9.4
“Capture Mode”) is not used in the deter-
mination of the PWM frequency. The
postscaler could be used to have a servo
update rate at a different frequency than
the PWM output.
PWM DUTY CYCLE
T
(TMR2 Prescale Value)
OSC
PIC16F7X7
• (TMR2 Prescale Value)
DS30498C-page 91
OSC
•
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