PIC16F1937-I/P Microchip Technology, PIC16F1937-I/P Datasheet - Page 196

• Manufacturer Part Number: PIC16F1937-I/P
• Description: IC PIC MCU FLASH 512KX14 40-PDIP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1937-I/P

• Program Memory Type: FLASH
• Program Memory Size: 14KB (8K x 14)
• Package / Case: 40-DIP (0.600", 15.24mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 36
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: EUSART/MI2C/SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• A/d Bit Size: 10 bit
• A/d Channels Available: 14
• Height: 4.95 mm
• Length: 53.21 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Width: 14.73 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC16F193X/LF193X
19.5.4
In Sleep mode, the TMRx register will not increment
and the state of the module will not change. If the CCPx
pin is driving a value, it will continue to drive that value.
When the device wakes up, TMRx will continue from its
previous state.
19.5.5
The PWM frequency is derived from the system clock
frequency. Any changes in the system clock frequency
will result in changes to the PWM frequency. See
Section 8.0 “Oscillator Module (With Fail-Safe
Clock Monitor)” for additional details.
19.5.6
Any Reset will force all ports to Input mode and the
CCP registers to their Reset states.
DS41364A-page 194
OPERATION IN SLEEP MODE
CHANGES IN SYSTEM CLOCK
FREQUENCY
EFFECTS OF RESET
Preliminary
19.5.7
The following steps should be taken when configuring
the CCP module for PWM operation:
1.
2.
3.
4.
5.
6.
• Clear the TMRxIF interrupt flag bit of the PIRx
• Configure the TxCKPS bits of the TxCON
• Enable Timerx by setting the TMRxON bit of
• Wait until Timerx overflows, TMRxIF bit of the
• Enable the PWM pin (CCPx) output driver(s) by
Note:
Disable the PWM pin (CCPx) output driver(s) by
setting the associated TRIS bit(s).
Load the PRx register with the PWM period value.
Configure the CCP module for the PWM mode
by loading the CCPxCON register with the
appropriate values.
Load the CCPRxL register and the DCxBx bits of
the CCPxCON register, with the PWM duty cycle
value.
Configure and start Timerx:
Enable PWM output pin:
register. See Note below.
register with the Timerx prescale value.
the T2CON register.
PIR1 register is set. See Note below.
clearing the associated TRIS bit(s).
SETUP FOR PWM OPERATION
In order to send a complete duty cycle and
period on the first PWM output, the above
steps must be included in the setup
sequence. If it is not critical to start with a
complete PWM signal on the first output,
then step 6 may be ignored.
© 2008 Microchip Technology Inc.