PIC18F6490-E/PT Microchip Technology, PIC18F6490-E/PT Datasheet - Page 251

• Manufacturer Part Number: PIC18F6490-E/PT
• Description: IC PIC MCU FLASH 16KX16 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F6490-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, LCD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• For Use With: DM163028 - BOARD DEMO PICDEM LCD
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

FIGURE 20-2:
TABLE 20-1:
© 2007 Microchip Technology Inc.
CVRCON
CMCON
TRISF
Legend: Shaded cells are not used with the comparator voltage reference.
Name
Note 1:
PORTF Data Direction Register
CVREN
C2OUT
Bit 7
REGISTERS ASSOCIATED WITH THE COMPARATOR VOLTAGE REFERENCE
CV
Module
R is dependent upon the voltage reference configuration bits, CVRCON<3:0> and CVRCON<5>.
VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
REF
PIC18FXXXX
CVROE
C1OUT
Bit 6
Impedance
Reference
Voltage
Output
R
(1)
C2INV
CVRR
Bit 5
RF5
PIC18F6390/6490/8390/8490
CVRSS
C1INV
Bit 4
CVR3
Bit 3
CIS
+
–
CVR2
Bit 2
CM2
CVR1
Bit 1
CM1
CV
REF
Output
CVR0
Bit 0
CM0
DS39629C-page 249
on Page
Values
Reset
61
61
62