PIC24HJ12GP202-I/SO Microchip Technology, PIC24HJ12GP202-I/SO Datasheet - Page 123

• Manufacturer Part Number: PIC24HJ12GP202-I/SO
• Description: IC PIC MCU FLASH 4KX24 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 24Hr

Specifications of PIC24HJ12GP202-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 12KB (4K x 24)
• Package / Case: 28-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 21
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC24HJ
• Core: PIC
• Data Bus Width: 16 bit
• Data Ram Size: 1 KB
• Interface Type: I2C/SPI/UART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 3
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737, 53276-922, EWDSPIC
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10-ch x 10-bit or 10-ch x 12-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164339 - MODULE SKT FOR PM3 28SOICDV164033 - KIT START EXPLORER 16 MPLAB ICD2
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

EXAMPLE 13-1:
TABLE 13-1:
TABLE 13-2:
TABLE 13-3:
© 2007 Microchip Technology Inc.
Timer Prescaler Ratio
Period Register Value
Resolution (bits)
Timer Prescaler Ratio
Period Register Value
Resolution (bits)
Timer Prescaler Ratio
Period Register Value
Resolution (bits)
1.
2.
Find the Timer Period register value for a desired PWM frequency that is 52.08 kHz, where F
prescaler setting of 1:1.
Find the maximum resolution of the duty cycle that can be used with a 52.08 kHz frequency and a 32 MHz device clock rate:
PWM Frequency
PWM Frequency
PWM Frequency
T
PWM Period = 1/PWM Frequency = 1/52.08 kHz = 19.2 ms
PWM Period = (PR2 + 1) • T
19.2 ms
PR2
PWM Resolution
CY
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS AT 4 MIPS (F
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS AT 16 MIPS (F
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS AT 40 MIPS (F
PWM PERIOD AND DUTY CYCLE CALCULATIONS
= 62.5 ns
= (PR2 + 1) • 62.5 ns • 1
= 306
= log
= (log
= 8.3 bits
30.5 Hz
FFFFh
FFFFh
FFFFh
7.6 Hz
10
76 Hz
10
(F
16
16
16
8
8
8
(16 MHz/52.08 kHz)/log
CY
CY
/F
• (Timer2 Prescale Value)
PWM
244 Hz
610 Hz
FFFFh
FFFFh
FFFFh
)/log
61 Hz
16
16
16
1
1
1
10
Preliminary
2) bits
1.22 Hz
122 Hz
488 Hz
7FFFh
7FFFh
7FFFh
10
15
15
15
2) bits
PIC24HJ12GP201/202
1
1
1
9.77 kHz
3.9 kHz
977 Hz
0FFFh
0FFFh
0FFFh
12
12
12
1
1
1
15.6 kHz
3.9 kHz
39 kHz
03FFh
03FFh
03FFh
10
10
10
1
1
1
CY
= 16 MHz and a Timer2
31.3 kHz
125 kHz
313 kHz
007Fh
007Fh
007Fh
CY
1
7
CY
1
7
CY
1
7
DS70282B-page 121
= 4 MHz)
= 16 MHz)
= 40 MHz)
1.25 MHz
125 kHz
500 kHz
001Fh
001Fh
001Fh
1
5
1
5
1
5