PIC18LF4431T-I/PT Microchip Technology, PIC18LF4431T-I/PT Datasheet - Page 183

• Manufacturer Part Number: PIC18LF4431T-I/PT
• Description: IC MCU FLASH 8KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF4431T-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: PIC18LF
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: EUSART, I2C, SPI, SSP
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 1 x 8
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 9 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 18-7:
 2010 Microchip Technology Inc.
PTMR_INT_REQ
PTMR_INT_REQ
Note 1: Interrupt flag bit, PTIF, is sampled here (every Q1).
A: PRESCALER = 1:1
B: PRESCALER = 1:4
PTDIR bit
PTDIR bit
PTIF bit
PTIF bit
F
PTMR
PTMR
OSC
/4
Q1
Qc
1
1
Q2
Qc
PWM TIME BASE INTERRUPT, CONTINUOUS UP/DOWN COUNT MODE
002h
002h
Q3
Qc
Q4
Qc
Q1
Qc
1
1
Q2
Qc
001h
001h
PIC18F2331/2431/4331/4431
Q3
Qc
Q4
Qc
Qc
Q1
1
1
Q4
Q2
Qc
Q4
000h
000h
Q3
Qc
Q4
Qc
Q1
Qc
1
1
Q2
Qc
001h
001h
Q3
Qc
Q4
Qc
Q1
Qc
DS39616D-page 183
Q2
Qc
002h
002h
Qc
Q3
Q4
Qc