PIC18F4455-I/PT Microchip Technology, PIC18F4455-I/PT Datasheet - Page 279

• Manufacturer Part Number: PIC18F4455-I/PT
• Description: IC PIC MCU FLASH 12KX16 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4455-I/PT

• Program Memory Type: FLASH
• Program Memory Size: 24KB (12K x 16)
• Package / Case: 44-TQFP, 44-VQFP
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 35
• Eeprom Size: 256 x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 24 KB
• Interface Type: SPI, I2C, EAUSART
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 35
• Number Of Timers: 4
• 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, ICE4000, DV164136, DM163025
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Package: 44TQFP
• Device Core: PIC
• Family Name: PIC18
• Maximum Speed: 48 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44PT3 - SOCKET TRAN ICE 44MQFP/TQFPI3-DB18F4550 - BOARD DAUGHTER ICEPIC3DM163025 - PIC DEM FULL SPEED USB DEMO BRDAC164305 - MODULE SKT FOR PM3 44TQFP444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

FIGURE 23-2:
TABLE 23-1:
© 2006 Microchip Technology Inc.
CVRCON
CMCON
TRISA
Legend: Shaded cells are not used with the comparator voltage reference.
Note 1:
Name
Note 1:
PORTA<6> and its direction and latch bits are individually configured as port pins based on various
oscillator modes. When disabled, these bits read as ‘0’.
CVREN
C2OUT
Bit 7
REGISTERS ASSOCIATED WITH COMPARATOR VOLTAGE REFERENCE
—
R is dependent upon the voltage reference configuration bits, CVRCON<5> and CVRCON<3:0>.
CV
Module
COMPARATOR VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
PIC18FXXXX
REF
TRISA6
CVROE
C1OUT
Bit 6
Impedance
Reference
Voltage
Output
R
(1)
(1)
TRISA5
C2INV
CVRR
Bit 5
RA2
PIC18F2455/2550/4455/4550
TRISA4
CVRSS
C1INV
Preliminary
Bit 4
TRISA3
CVR3
Bit 3
CIS
+
–
TRISA2
CVR2
Bit 2
CM2
TRISA1
CVR1
Bit 1
CM1
CV
REF
Output
TRISA0
CVR0
Bit 0
CM0
DS39632C-page 277
on page
Values
Reset
53
53
54