PIC18F4580-I/ML Microchip Technology, PIC18F4580-I/ML Datasheet - Page 29

• Manufacturer Part Number: PIC18F4580-I/ML
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,44PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4580-I/ML

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44QFN2 - SOCKET TRAN ICE 44QFN/40DIPAC164322 - MODULE SOCKET MPLAB PM3 28/44QFN444-1001 - DEMO BOARD FOR PICMICRO MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.0
3.1
PIC18F2480/2580/4480/4580 devices can be operated
in ten different oscillator modes. The user can program
the Configuration bits, FOSC<3:0>, in Configuration
Register 1H to select one of these ten modes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. ECIO
3.2
In XT, LP, HS or HSPLL Oscillator modes, a crystal or
ceramic resonator is connected to the OSC1 and
OSC2 pins to establish oscillation. Figure 3-1 shows
the pin connections.
The oscillator design requires the use of a parallel
resonant crystal.
© 2009 Microchip Technology Inc.
Note:
LP
XT
HS
HSPLL High-Speed Crystal/Resonator
RC
RCIO
INTIO1 Internal Oscillator with F
INTIO2 Internal Oscillator with I/O on RA6
EC
OSCILLATOR
CONFIGURATIONS
Oscillator Types
Crystal Oscillator/Ceramic
Resonators
Use of a series resonant crystal may give
a
manufacturer’s specifications.
Low-Power Crystal
Crystal/Resonator
High-Speed Crystal/Resonator
with PLL Enabled
External Resistor/Capacitor with
F
External Resistor/Capacitor with I/O
on RA6
on RA6 and I/O on RA7
and RA7
External Clock with F
External Clock with I/O on RA6
OSC
frequency
/4 Output on RA6
out
OSC
of
OSC
/4 Output
the
/4 Output
PIC18F2480/2580/4480/4580
crystal
FIGURE 3-1:
TABLE 3-1:
Capacitor values are for design guidance only.
These capacitors were tested with the resonators
listed below for basic start-up and operation. These
values are not optimized.
Different capacitor values may be required to produce
acceptable oscillator operation. The user should test
the performance of the oscillator over the expected
V
See the notes on page 30 for additional information.
Note 1: See Table 3-1 and Table 3-2 for initial values of
DD
Note:
Mode
HS
XT
and temperature range for the application.
C1
C2
2: A series resistor (R
3: R
455 kHz
2.0 MHz
(1)
(1)
Typical Capacitor Values Used:
C1 and C2.
strip cut crystals.
When using resonators with frequencies
above 3.5 MHz, the use of HS mode,
rather than XT mode, is recommended.
HS mode may be used at any V
which the controller is rated. If HS is
selected, it is possible that the gain of the
oscillator will overdrive the resonator.
Therefore, a series resistor should be
placed between the OSC2 pin and the
resonator. As a good starting point, the
recommended value of R
F
16.0 MHz
varies with the oscillator mode chosen.
XTAL
R
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
S
Freq
(2)
Resonators Used:
CAPACITOR SELECTION FOR
CERAMIC RESONATORS
OSC2
OSC1
16.0 MHz
CRYSTAL/CERAMIC
RESONATOR OPERATION
(XT, LP, HS OR HSPLL
CONFIGURATION)
S
) may be required for AT
OSC1
56 pF
47 pF
33 pF
27 pF
22 pF
R
F
(3)
PIC18FXXXX
4.0 MHz
8.0 MHz
DS39637D-page 29
S
is 330Ω.
Sleep
OSC2
56 pF
47 pF
33 pF
27 pF
22 pF
To
Internal
Logic
DD
for