PIC18F4431-E/PT Microchip Technology, PIC18F4431-E/PT Datasheet - Page 99

• Manufacturer Part Number: PIC18F4431-E/PT
• Description: IC MCU FLASH 8KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4431-E/PT

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Oscillator Type: Internal
• Core Processor: PIC
• 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 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 9x10b
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 36
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REGISTER 9-5:
 2003 Microchip Technology Inc.
bit 7
bit 6-5
bit 4
bit 3
bit 2
bit 1
bit 0
PIR2: PERIPHERAL INTERRUPT REQUEST (FLAG) REGISTER 2
OSFIF: Oscillator Fail Interrupt Flag bit
1 = System Oscillator failed, clock input has changed to INTOSC (must be cleared in software)
0 = System clock operating
Unimplemented: Read as ‘0’
EEIF: EEPROM or Flash Write Operation Interrupt Flag bit
1 = The write operation is complete (must be cleared in software)
0 = The write operation is not complete or has not been started
Unimplemented: Read as ‘0’
LVDIF: Low-Voltage Detect Interrupt Flag bit
1 = The supply voltage has fallen below the specified LVD voltage (must be cleared in
0 = The supply voltage is greater than the specified LVD voltage
Unimplemented: Read as ‘0’
CCP2IF: CCP2 Interrupt Flag bit
Capture mode:
1 = A TMR1 register capture occurred (must be cleared in software)
0 = No TMR1 register capture occurred
Compare mode:
1 = A TMR1 register compare match occurred (must be cleared in software)
0 = No TMR1 register compare match occurred
PWM mode:
Not used in PWM mode
bit 7
Legend:
R = Readable bit
- n = Value at POR
OSFIF
R/W-0
software)
U-0
—
PIC18F2331/2431/4331/4431
U-0
W = Writable bit
‘1’ = Bit is set
Preliminary
—
R/W-0
EEIF
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U-0
—
R/W-0
LVDIF
x = Bit is unknown
U-0
—
DS39616B-page 97
CCP2IF
R/W-0
bit 0