PIC12F1822-I/MF Microchip Technology, PIC12F1822-I/MF Datasheet - Page 210

• Manufacturer Part Number: PIC12F1822-I/MF
• Description: IC, 8BIT MCU, PIC12, 32MHZ, DFN-8
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 12Fr

Specifications of PIC12F1822-I/MF

• Controller Family/series: PIC12
• No. Of I/o's: 6
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 128Byte
• Cpu Speed: 32MHz
• No. Of Timers: 3
• Core Size: 8 Bit
• Program Memory Size: 3.5KB
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC12F/LF1822/PIC16F/LF1823
24.3.5
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 PR2 is
255. The resolution is a function of the PR2 register
value as shown by
EQUATION 24-4:
TABLE 24-5:
TABLE 24-6:
TABLE 24-7:
DS41413B-page 210
Timer Prescale (1, 4, 16)
PR2 Value
Maximum Resolution (bits)
Timer Prescale (1, 4, 16)
PR2 Value
Maximum Resolution (bits)
Timer Prescale (1, 4, 16)
PR2 Value
Maximum Resolution (bits)
Note:
PWM Frequency
PWM Frequency
PWM Frequency
Resolution
PWM RESOLUTION
If the pulse width value is greater than the
period the assigned PWM pin(s) will
remain unchanged.
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS (F
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS (F
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS (F
Equation
=
PWM RESOLUTION
log
----------------------------------------- - bits

4 PR2
24-4.
log

2  
1.95 kHz
1.22 kHz
1.22 kHz
+
0xFF
0xFF
0x65
1
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
0xFF
0xFF
0x65
10
10
1
1
1
8
78.12 kHz
76.92 kHz
125 kHz
0x3F
0x3F
0x19
1
8
1
8
1
6
OSC
OSC
OSC
 2010 Microchip Technology Inc.
= 32 MHz)
= 20 MHz)
= 8 MHz)
153.85 kHz
156.3 kHz
250 kHz
0x0C
0x1F
0x1F
1
7
1
7
1
5
333.3 kHz
208.3 kHz
200.0 kHz
0x17
0x17
0x09
6.6
6.6
1
1
1
5