PIC18F448-I/PT Microchip Technology, PIC18F448-I/PT Datasheet - Page 101

• Manufacturer Part Number: PIC18F448-I/PT
• Description: IC PIC MCU FLASH 8KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F448-I/PT

• Core Size: 8-Bit
• Program Memory Size: 16KB (8K x 16)
• Core Processor: PIC
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 33
• 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 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC18
• No. Of I/o's: 33
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 768Byte
• Cpu Speed: 40MHz
• No. Of Timers: 4
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: SPI, I2C, USART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 4 bit
• 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, DV164136, DM163011
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44PT3 - SOCKET TRAN ICE 44MQFP/TQFPAC164305 - MODULE SKT FOR PM3 44TQFP444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
• Lead Free Status / Rohs Status: Details

TABLE 9-3:
TABLE 9-4:
© 2006 Microchip Technology Inc.
RB0/INT0
RB1/INT1
RB2/CANTX/
INT2
RB3/CANRX
RB4
RB5/PGM
RB6/PGC
RB7/PGD
Legend: TTL = TTL input, ST = Schmitt Trigger input
Note 1:
PORTB
LATB
TRISB
INTCON
INTCON2
INTCON3
Legend:
Name
Name
2:
This buffer is a Schmitt Trigger input when configured as the external interrupt.
This buffer is a Schmitt Trigger input when used in Serial Programming mode.
x = unknown, u = unchanged. Shaded cells are not used by PORTB.
LATB Data Output Register
PORTB Data Direction Register
GIE/GIEH PEIE/GIEL TMR0IE
INT2IP
RBPU
Bit 7
RB7
Bit#
bit 0
bit 1
bit 2
bit 3
bit 4
bit 5
bit 6
bit 7
PORTB FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTB
INTEDG0 INTEDG1
INT1IP
Bit 6
RB6
TTL/ST
TTL/ST
TTL/ST
TTL/ST
TTL/ST
Buffer
TTL
TTL
TTL
(1)
(1)
(1)
(2)
(2)
Bit 5
RB5
—
Input/output pin or external interrupt 0 input.
Internal software programmable weak pull-up.
Input/output pin or external interrupt 1 input.
Internal software programmable weak pull-up.
Input/output pin, CAN bus transmit pin or external interrupt 2 input.
Internal software programmable weak pull-up.
Input/output pin or CAN bus receive pin.
Internal software programmable weak pull-up.
Input/output pin (with interrupt-on-change).
Internal software programmable weak pull-up.
Input/output pin (with interrupt-on-change). Internal software programmable
weak pull-up. Low-voltage serial programming enable.
Input/output pin (with interrupt-on-change). Internal software programmable
weak pull-up. Serial programming clock.
Input/output pin (with interrupt-on-change). Internal software programmable
weak pull-up. Serial programming data.
INT0IE
INT2IE
Bit 4
RB4
—
INT1IE
RBIE
Bit 3
RB3
—
TMR0IP
TMR0IF
Bit 2
RB2
—
Function
INT0IF
INT2IF
Bit 1
RB1
—
INT1IF
RBIF
RBIP
Bit 0
RB0
PIC18FXX8
xxxx xxxx
xxxx xxxx
1111 1111
0000 000x
111- -1-1
11-0 0-00
POR, BOR
Value on
DS41159E-page 99
uuuu uuuu
uuuu uuuu
1111 1111
0000 000u
111- -1-1
11-1 0-00
Value on
all other
Resets