PIC18F2431-E/MM Microchip Technology, PIC18F2431-E/MM Datasheet - Page 183

• Manufacturer Part Number: PIC18F2431-E/MM
• Description: 16 KB Flash, 768 RAM, 22 I/O 28 QFN-S 6x6m TUBE
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2431-E/MM

• 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: 24
• 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): 4.2 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PIC18F2431-E/ML; PIC18F2431-E/ML

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