PIC24F16KA302-E/SP Microchip Technology, PIC24F16KA302-E/SP Datasheet - Page 248

• Manufacturer Part Number: PIC24F16KA302-E/SP
• Description: 16KB Flash, 2KB RAM, 512B EEPROM, 16 MIPS, 12-bit ADC, CTMU, XLP 28 SPDIP .300in
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 24Fr

Specifications of PIC24F16KA302-E/SP

• Core Processor: PIC
• Core Size: 16-Bit
• Speed: 32MHz
• Connectivity: I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 16KB (5.5K x 24)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 13x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-DIP (0.300", 7.62mm)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

internally tied together to operate at an overall lower
shutdown. High/Low-Voltage Detection is only available
PIC24FV32KA304 FAMILY
26.2
All of the PIC24FV32KA304 family of devices power
their core digital logic at a nominal 3.0V. This may
create an issue for designs that are required to operate
at a higher typical voltage, as high as 5.0V. To simplify
system design, all devices in the ‘‘FV’’ family incorpo-
rate an on-chip regulator that allows the device to run
its core logic from V
The regulator is always enabled and provides power to
the core from the other V
(such as ceramic) must be connected to the V
(Figure
regulator. The recommended value for the filter capac-
itor is provided in
In all of the PIC24FJ64GA family of devices, the
regulator is disabled.
For the ‘‘F’’ devices, the V
allowable voltage range (1.8-3.6V). Refer to
for possible configurations.
26.2.1
For all PIC24FV32KA304 devices, the on-chip regula-
tor provides a constant voltage of 3.0V nominal to the
digital core logic. The regulator can provide this level
from a V
V
levels below 3.0V. In order to prevent “brown out” con-
ditions when the voltage drops too low for the regulator,
the regulator enters Tracking mode. In Tracking mode,
the regulator output follows V
drop of 100 mV.
When the device enters Tracking mode, it is no longer
possible to operate at full speed. To provide information
about when the device enters Tracking mode, the
on-chip regulator includes a simple, High/Low-Voltage
Detect (HLVD) circuit. When V
operating voltage, the circuit sets the High/Low-Voltage
Detect Interrupt Flag, HLVDIF (IFS4<8>). This can be
used to generate an interrupt and put the application into
a low-power operational mode or trigger an orderly
for ‘‘FV’’ parts.
DS39995B-page 248
DDMAX
26-1). This helps to maintain the stability of the
. It does not have the capability to boost V
DD
On-Chip Voltage Regulator
of about 3.0V, all the way up to the device’s
VOLTAGE REGULATOR TRACKING
MODE AND LOW-VOLTAGE
DETECTION
Section 29.1 “DC
DD
.
DD
DDCORE
pins. A low-ESR capacitor
DD
DD
drops below full-speed
with a typical voltage
Characteristics”.
and V
DD
Figure 26-1
pins are
CAP
pin
DD
FIGURE 26-1:
26.2.2
For PIC24FV32KA304 devices, it takes approximately
1 s for it to generate output. During this time, desig-
nated as TPM, code execution is disabled. TPM is
applied every time the device resumes operation after
any power-down, including Sleep mode.
26.3
For the PIC24FV32KA304 family of devices, the WDT
is driven by the LPRC oscillator. When the WDT is
enabled, the clock source is also enabled.
The nominal WDT clock source from LPRC is 31 kHz.
This feeds a prescaler that can be configured for either
5-bit (divide-by-32) or 7-bit (divide-by-128) operation.
The prescaler is set by the FWPSA Configuration bit.
With a 31 kHz input, the prescaler yields a nominal
WDT time-out period (T
4 ms in 7-bit mode.
A variable postscaler divides down the WDT prescaler
output and allows for a wide range of time-out periods.
The postscaler is controlled by the Configuration bits,
WDTPS<3:0> (FWDT<3:0>), which allow the selection
of a total of 16 settings, from 1:1 to 1:32,768. Using the
prescaler and postscaler time-out periods, ranging
from 1 ms to 131 seconds, can be achieved.
Note 1:
(10 F typ)
Watchdog Timer (WDT)
C
Regulator Enabled:
EFC
ON-CHIP REGULATOR AND POR
These are typical operating voltages. Refer to
Section 29.0 “Electrical Characteristics”
the full operating ranges of V
5.0V
CONNECTIONS FOR THE
ON-CHIP REGULATOR
 2011 Microchip Technology Inc.
WDT
V
V
V
DD
CAP
SS
PIC24FV32KA304
) of 1 ms in 5-bit mode or
DD
and V
DDCORE
for
.