PIC18F86K90-I/PT Microchip Technology, PIC18F86K90-I/PT Datasheet - Page 45

• Manufacturer Part Number: PIC18F86K90-I/PT
• Description: 64kB Flash, 4kB RAM, 1kB EE, 16MIPS, NanoWatt XLP, LCD, 5V 80 TQFP 12x12x1mm TRA
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F86K90-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 64MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

TABLE 3-2:
TABLE 3-3:
 2010 Microchip Technology Inc.
Capacitor values are for design guidance only.
Different capacitor values may be required to produce
acceptable oscillator operation. The user should test
the performance of the oscillator over the expected
V
to the following application notes for oscillator-specific
information:
• AN588, “PIC
• AN826, “Crystal Oscillator Basics and Crystal
• AN849, “Basic PIC
• AN943, “Practical PIC
• AN949, “Making Your Oscillator Work”
See the notes following Table 3-3 for additional
information.
Capacitor values are for design guidance only.
Different capacitor values may be required to produce
acceptable oscillator operation. The user should test
the performance of the oscillator over the expected
V
Refer to the Microchip application notes cited in
Table 3-2 for oscillator-specific information. Also see
the
information.
Osc Type
DD
DD
Mode
Guide”
Selection for rfPIC
Design”
HS
HS
and temperature range for the application. Refer
and temperature range for the application.
notes
Typical Capacitor Values Used:
16.0 MHz
8.0 MHz
following
20 MHz
Crystal
4 MHz
8 MHz
Freq.
®
Freq.
Microcontroller Oscillator Design
CAPACITOR SELECTION FOR
CERAMIC RESONATORS
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR
®
®
and PIC
Oscillator Design”
®
this
Oscillator Analysis and
Typical Capacitor Values
OSC1
27 pF
22 pF
15 pF
27 pF
22 pF
®
C1
table
Devices”
Tested:
for
additional
27 pF
22 pF
15 pF
OSC2
27 pF
22 pF
C2
Preliminary
PIC18F87K90 FAMILY
FIGURE 3-2:
3.5
For timing-insensitive applications, the RC and RCIO
Oscillator modes offer additional cost savings. The
actual oscillator frequency is a function of several
factors:
• Supply voltage
• Values of the external resistor (R
• Operating temperature – Given the same device,
Note 1: See Table 3-2 and Table 3-3 for initial values of
capacitor (C
operating voltage and temperature and
component values, there will also be unit-to-unit
frequency variations. These are due to factors
such as:
- normal manufacturing variation
- difference in lead frame capacitance between
- variations within the tolerance of limits of
Note 1: Higher capacitance increases the stability
package types (especially for low C
values)
R
EXT
C1
C2
2: A series resistor (R
3: R
2: Since each resonator/crystal has its own
3: Rs may be required to avoid overdriving
4: Always verify oscillator performance over
RC Oscillator
(1)
(1)
and C
C1 and C2.
strip cut crystals.
of oscillator but also increases the start-up
time.
characteristics, the user should consult
the resonator/crystal manufacturer for
appropriate
components.
crystals with low drive level specification.
the V
expected for the application.
F
EXT
XTAL
varies with the oscillator mode chosen.
EXT
R
)
DD
S
(2)
OSC1
OSC2
and temperature range that is
CRYSTAL/CERAMIC
RESONATOR OPERATION
(HS OR HSPLL
CONFIGURATION)
values
S
) may be required for AT
R
F
PIC18F87K90
(3)
EXT
DS39957B-page 45
) and
of
EXT
Sleep
external
To
Internal
Logic