PIC18F65K90-I/PTRSL Microchip Technology, PIC18F65K90-I/PTRSL Datasheet - Page 440

• Manufacturer Part Number: PIC18F65K90-I/PTRSL
• Description: MCU PIC 32K FLASH MEM XLP 64TQFP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F65K90-I/PTRSL

• Core Size: 8-Bit
• Program Memory Size: 32KB (16K x 16)
• Core Processor: PIC
• Speed: 64MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 16x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TFQFP
• Controller Family/series: PIC18
• Eeprom Memory Size: 1024Byte
• Ram Memory Size: 2048Byte
• Cpu Speed: 16MIPS
• No. Of Timers: 8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC18F87K90 FAMILY
28.3
All of the PIC18F87K90 family devices power their core
digital logic at a nominal 3.3V. For designs that are
required to operate at a higher typical voltage, such as
5V, all family devices incorporate two on-chip regula-
tors that allows the device to run its core logic from
V
• Normal On-Chip Regulator
• Ultra Low-Power, On-Chip Regulator
The hardware configuration of these regulators are the
same and are explained in Section 28.3.1 . The regula-
tors’ only differences relate to when the device enters
Sleep, as explained in Section 28.3.2 .
28.3.1
The regulator can be enabled or disabled only by
hardware. The regulator is controlled by the ENVREG
pin and the V
28.3.1.1
Tying V
provides power to the core from the other V
When the regulator is enabled, a low-ESR filter capac-
itor must be connected to the V
Figure 28-2). This helps maintain the regulator’s
stability. The recommended value for the filter capacitor
is given in Section 31.2 DC Characteristics .
28.3.1.2
If ENVREG is tied to V
this case, a 0.1  F capacitor should be connected to
the V
When the regulator is being used, the overall voltage
budget is very tight. The regulator should operate the
device down to 1.8V. When V
regulator no longer regulates, but the output voltage fol-
lows the input until V
the output of the regulator output may drop to 0V.
DS39957B-page 440
DD
. Those regulators are:
DDCORE
DD
On-Chip Voltage Regulator
to the pin enables the regulator, which in turn,
REGULATOR ENABLE/DISABLE BY
HARDWARE
/V
DDCORE
Regulator Enable Mode
Regulator Disable Mode
CAP
pin (see Figure 28-2).
DD
/V
reaches 1.8V. Below this voltage,
SS
CAP
, the regulator is disabled. In
pin.
DD
DDCORE
drops below 3.3V, the
/V
CAP
DD
pins.
pin (see
Preliminary
FIGURE 28-2:
Note 1:
Regulator Enabled (ENVREG tied to V
Regulator Disabled (ENVREG tied to V
C
0.1  F
These are typical operating voltages. For the
full operating ranges of V
see Section 31.2 DC Characteristics .
F
5V
3.3V
(1)
CONNECTIONS FOR THE
ON-CHIP REGULATOR
V
ENVREG
V
V
 2010 Microchip Technology Inc.
DD
DDCORE
SS
PIC18F87K90
V
ENVREG
V
V
DD
DDCORE
SS
PIC18F87K90
/V
CAP
/V
DD
CAP
and V
DD
SS
DDCORE
):
):
,