PIC18LF4221-I/PT Microchip Technology, PIC18LF4221-I/PT Datasheet - Page 107

• Manufacturer Part Number: PIC18LF4221-I/PT
• Description: 4 KB Flash, 512 RAM 44 TQFP 10x10x1mm TRAY
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18LF4221-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REGISTER 10-9:
© 2009 Microchip Technology Inc.
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
IPR2: PERIPHERAL INTERRUPT PRIORITY REGISTER 2
PIC18F2221/2321/4221/4321 FAMILY
bit 7
OSCFIP: Oscillator Fail Interrupt Priority bit
1 = High priority
0 = Low priority
CMIP: Comparator Interrupt Priority bit
1 = High priority
0 = Low priority
Unimplemented: Read as ‘0’
EEIP: Data EEPROM/Flash Write Operation Interrupt Priority bit
1 = High priority
0 = Low priority
BCLIP: Bus Collision Interrupt Priority bit
1 = High priority
0 = Low priority
HLVDIP: High/Low-Voltage Detect Interrupt Priority bit
1 = High priority
0 = Low priority
TMR3IP: TMR3 Overflow Interrupt Priority bit
1 = High priority
0 = Low priority
CCP2IP: CCP2 Interrupt Priority bit
1 = High priority
0 = Low priority
Legend:
R = Readable bit
-n = Value at POR
OSCFIP
R/W-1
R/W-1
CMIP
U-0
W = Writable bit
‘1’ = Bit is set
—
R/W-1
EEIP
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-1
BCLIP
HLVDIP
R/W-1
TMR3IP
R/W-1
x = Bit is unknown
DS39689F-page 107
CCP2IP
R/W-1
bit 0