PIC18F86K90-I/PT Microchip Technology, PIC18F86K90-I/PT Datasheet - Page 39

• 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

3.0
3.1
The PIC18F87K90 family of devices can be operated in
the following oscillator modes:
• EC
• ECIO
• HS
• XT
• LP
• RC
• RCIO
• INTIO2
• INTIO1
There is also an option for running the 4xPLL on any of
the clock sources in the input frequency range of 4 to
16 MHz.
The PLL is enabled by setting the PLLCFG bit
(CONFIG1H<4>) or the PLLEN bit (OSCTUNE<6>).
For the EC and HS mode, the PLLEN (software) or
PLLCFG (CONFIG) bit can be used to enable the PLL.
For the INTIOx modes (HF-INTOSC):
• Only the PLLEN can enable the PLL (PLLCFG is
• When the oscillator is configured for the internal
When the RA6 and RA7 pins are not used for an oscil-
lator function or CLKOUT function, they are available
as general purpose I/Os.
 2010 Microchip Technology Inc.
ignored).
oscillator (OSC<3:0> = 100x), the PLL can be
enabled only when the HF-INTOSC frequency is
8 or 16 MHz.
OSCILLATOR
CONFIGURATIONS
Oscillator Types
External Clock, RA6 available
External Clock, Clock Out RA6
(F
High-Speed Crystal/Resonator
Crystal/Resonator
Low-Power Crystal
External Resistor/Capacitor, RA6
available
External Resistor/Capacitor, Clock
Out RA6 (F
Internal Oscillator with I/O on RA6
and RA7
Internal Oscillator with F
on RA6 and I/O on RA7
OSC
/4 on RA6)
OSC
/4 on RA6)
OSC
/4 Output
Preliminary
PIC18F87K90 FAMILY
To optimize power consumption when using EC/HS/
XT/LP/RC as the primary oscillator, the frequency input
range can be configured to yield an optimized power
bias:
• Low-Power Bias – External frequency less than
• Medium Power Bias – External frequency
• High-Power Bias – External frequency greater
All of these modes are selected by the user by
programming
(CONFIG1H<3:0>). In addition, PIC18F87K90 family
devices can switch between different clock sources,
either under software control or under certain condi-
tions, automatically. This allows for additional power
savings by managing device clock speed in real time
without resetting the application. The clock sources for
the PIC18F87K90 family of devices are shown in
Figure 3-1.
For the HS and EC mode, there are additional power
modes of operation – depending on the frequency of
operation.
HS1 is the Medium Power mode with a frequency
range of 4 MHz to 16 MHz. HS2 is the High-Power
mode where the oscillator frequency can go from
16 MHz to 25 MHz. HS1 and HS2 are achieved by
setting the CONFIG1H<3:0> correctly. (For details, see
Register 28-2 on page 426.)
EC mode has these modes of operation:
• EC1 – For low power with a frequency range up to
• EC2 – Medium power with a frequency range of
• EC3 – High power with a frequency range of
EC1, EC2 and EC3 are achieved by setting the
CONFIG1H<3:0>
Register 28-2 on page 426.)
Table 3-1 shows the HS and EC modes’ frequency
range and OSC<3:0> settings.
160 kHz
between 160 kHz and 16 MHz
than 16 MHz
160 kHz
160 kHz to 16 MHz
16 MHz to 64 MHz
the
correctly.
OSC<3:0>
(For
Configuration
DS39957B-page 39
details,
see
bits