PIC18F1230-E/P Microchip Technology, PIC18F1230-E/P Datasheet - Page 130

• Manufacturer Part Number: PIC18F1230-E/P
• Description: Microcontroller
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F1230-E/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 18-DIP (0.300", 7.62mm)
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: EUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 4 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F1230/1330
FIGURE 14-9:
FIGURE 14-10:
DS39758D-page 130
New PTPER Value = 007
New PTPER Value = 007
Old PTPER Value = 004
Old PTPER Value = 004
PWM PERIOD BUFFER UPDATES IN FREE-RUNNING MODE
PWM PERIOD BUFFER UPDATES IN CONTINUOUS UP/DOWN COUNT MODES
0
0
1
1
2
2
3
3
Period Value Loaded from PTPER Buffer Register
4
4
3
New Value Written to PTPER Buffer
0
2
1
1
2
0
1
3
2
4
3
0
New Value Written to PTPER Buffer
Period Value Loaded from
4
PTPER Buffer Register
1
5
2
6
3
7
4
6
 2009 Microchip Technology Inc.
5
5
4
6
3
7
2
1
0