PIC18F2431-I/SP Microchip Technology Inc., PIC18F2431-I/SP Datasheet - Page 193

• Manufacturer Part Number: PIC18F2431-I/SP
• Description: Microcontroller; 16 KB Flash; 768 RAM; 256 EEPROM; 24 I/O; 28-Pin-SPDIP
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F2431-I/SP

• A/d Inputs: 5-Channel, 10-Bit
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 24
• Interface: I2C/SPI/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin SPDIP
• Programmable Memory: 16K Bytes
• Ram Size: 768 Bytes
• Speed: 40 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

FIGURE 17-7:
 2003 Microchip Technology Inc.
PTMR_INT_REQ
PTMR_INT_REQ
PRESCALER = 1:1
PRESCALER = 1:4
Note 1: Interrupt flag bit PTIF is sampled here (every Q1).
PTDIR bit
PTDIR bit
PTIF bit
PTIF bit
F
PTMR
PTMR
OSC
/4
Q1
Qc
1
1
Q2
Qc
002h
PWM TIME BASE INTERRUPTS, UP/DOWN COUNTING MODE
002h
Q3
Qc
Q4
Qc
Q1
Qc
1
1
Q2
Qc
001h
001h
PIC18F2331/2431/4331/4431
Q3
Qc
Preliminary
Q4
Qc
Q1
1
Qc
1
Q4
Q2
Qc
Q4
000h
000h
Q3
Qc
Q4
Qc
Q1
1
Qc
1
Q2
Qc
001h
001h
Q3
Qc
Q4
Qc
Q1
Qc
DS39616B-page 191
Q2
Qc
002h
002h
Q3
Qc
Q4
Qc