PIC16F1947-I/PT Microchip Technology, PIC16F1947-I/PT Datasheet - Page 220

• Manufacturer Part Number: PIC16F1947-I/PT
• Description: IC MCU 8BIT FLASH 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1947-I/PT

• Core Size: 8-Bit
• Program Memory Size: 28KB (16K x 14)
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 17x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Controller Family/series: PIC16F
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 1024Byte
• Cpu Speed: 32MHz
• No. Of Timers: 5
• Interface: EUSART, I2C, SPI
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: EUSART, I2C, SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 5
• 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
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 17 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC16F/LF1946/47
23.3.6
The resolution determines the number of available duty
cycles for a given period. For example, a 10-bit resolution
will result in 1024 discrete duty cycles, whereas an 8-bit
resolution will result in 256 discrete duty cycles.
The maximum PWM resolution is 10 bits when PRx is
255. The resolution is a function of the PRx register
value as shown by
TABLE 23-5:
TABLE 23-6:
TABLE 23-7:
DS41414B-page 220
Timer Prescale (1, 4, 16)
PRx Value
Maximum Resolution (bits)
Timer Prescale (1, 4, 16)
PRx Value
Maximum Resolution (bits)
Timer Prescale (1, 4, 16)
PRx Value
Maximum Resolution (bits)
PWM Frequency
PWM Frequency
PWM Frequency
PWM RESOLUTION
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS (F
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS (F
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS (F
Equation
23-4.
1.95 kHz
1.22 kHz
1.22 kHz
0xFF
0xFF
0x65
16
10
16
10
16
8
7.81 kHz
4.88 kHz
4.90 kHz
0xFF
0xFF
Preliminary
0x65
10
10
4
4
4
8
31.25 kHz
19.53 kHz
19.61 kHz
EQUATION 23-4:
0xFF
0xFF
Note:
0x65
10
10
1
1
1
8
Resolution
If the pulse width value is greater than the
period the assigned PWM pin(s) will
remain unchanged.
78.12 kHz
76.92 kHz
125 kHz
0x3F
0x3F
0x19
1
8
1
8
1
6
OSC
OSC
OSC
=
PWM RESOLUTION
log
----------------------------------------- - bits
 2010 Microchip Technology Inc.
= 32 MHz)
= 20 MHz)
= 8 MHz)

4 PRx
153.85 kHz
log
156.3 kHz

250 kHz
0x0C
0x1F
0x1F
2  
1
7
1
7
1
5
+
1


333.3 kHz
208.3 kHz
200.0 kHz
0x17
0x17
0x09
6.6
6.6
1
1
1
5