PIC18F86J90-I/PT Microchip Technology, PIC18F86J90-I/PT Datasheet - Page 333
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PIC18F86J90-I/PT
Manufacturer Part Number
PIC18F86J90-I/PT
Description
IC PIC MCU FLASH 64KB 80-TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F67J90-IPT.pdf
(450 pages)
2.PIC18F67J90-IPT.pdf
(3 pages)
3.PIC18F67J90-IPT.pdf
(10 pages)
4.PIC18F66J90-IPT.pdf
(444 pages)
Specifications of PIC18F86J90-I/PT
Program Memory Type
FLASH
Program Memory Size
64KB (32K x 16)
Package / Case
80-TFQFP
Core Processor
PIC
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LCD, LVD, POR, PWM, WDT
Number Of I /o
67
Ram Size
3.8K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3923 B
Interface Type
AUSART, EUSART, I2C, SPI
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
67
Number Of Timers
4
Operating Supply Voltage
2.65 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC162079 - HEADER MPLAB ICD2 18F85J90 64/80AC164328 - MODULE SKT FOR 80TQFP
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F86J90-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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25.3
All of the PIC18F87J90 family devices power their core
digital logic at a nominal 2.5V. For designs that are
required to operate at a higher typical voltage, such as
3.3V, all devices in the PIC18F87J90 family incorporate
an on-chip regulator that allows the device to run its
core logic from V
The regulator is controlled by the ENVREG pin. Tying
V
vides power to the core from the other V
the regulator is enabled, a low-ESR filter capacitor
must be connected to the V
(Figure 25-2). This helps to maintain the stability of the
regulator. The recommended value for the filter capac-
itor is provided in Section 28.3 “DC Characteristics:
PIC18F87J90 Family (Industrial)”.
If ENVREG is tied to V
this case, separate power for the core logic at a nomi-
nal 2.5V must be supplied to the device on the
V
levels, typically 3.3V. Alternatively, the V
and V
nominal voltage. Refer to Figure 25-2 for possible
configurations.
25.3.1
When it is enabled, the on-chip regulator provides a
constant voltage of 2.5V nominal to the digital core
logic. The regulator can provide this level from a V
about 2.5V, all the way up to the device’s V
does not have the capability to boost V
2.5V.
In order to prevent “brown-out” conditions when the
voltage drops too low for the regulator, the regulator
enters Tracking mode. In Tracking mode, the regulator
output follows V
100 mV.
The on-chip regulator includes a simple Low-Voltage
Detect (LVD) circuit. If V
approximately 2.45V on V
Low-Voltage Detect Interrupt Flag, LVDIF (PIR2<2>),
and clears the REGSLP (WDTCON<7>) bit, if it was
set.
This can be used to generate an interrupt and put the
application into a low-power operational mode, or trig-
ger an orderly shutdown. Low-Voltage Detection is only
available when the regulator is enabled.
2010 Microchip Technology Inc.
DD
DDCORE
to the pin enables the regulator, which in turn, pro-
DD
pins can be tied together to operate at a lower
On-Chip Voltage Regulator
/V
CAP
VOLTAGE REGULATION AND
LOW-VOLTAGE DETECTION
pin to run the I/O pins at higher voltage
DD
DD
.
with a typical voltage drop of
SS
DD
, the regulator is disabled. In
DDCORE
drops too low to maintain
, the circuit sets the
DDCORE
DD
DD
DDCORE
levels below
pins. When
/V
DDMAX
CAP
/V
DD
CAP
pin
. It
of
PIC18F87J90 FAMILY
FIGURE 25-2:
Note 1: These are typical operating voltages. For the
Regulator Enabled (ENVREG tied to V
Regulator Disabled (ENVREG tied to ground):
Regulator Disabled (V
2.5V
2.5V
C
full operating ranges of V
refer to Section 28.1 “DC Characteristics:
Supply Voltage PIC18F87J90 Family
(Industrial)”.
(1)
(1)
F
3.3V
3.3V
(1)
CONNECTIONS FOR THE
ON-CHIP REGULATOR
V
ENVREG
V
V
DD
DD
DDCORE
SS
PIC18F87J90
V
ENVREG
V
V
V
ENVREG
V
V
tied to V
DD
DDCORE
SS
DD
DDCORE
SS
PIC18F87J90
PIC18F87J90
/V
CAP
DD
/V
/V
DDCORE
DS39933D-page 333
and V
CAP
CAP
DD
):
DDCORE
):
,
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