PIC24HJ64GP510A-E/PF Microchip Technology, PIC24HJ64GP510A-E/PF Datasheet - Page 224

• Manufacturer Part Number: PIC24HJ64GP510A-E/PF
• Description: 16 Bit MCU 40MIPS 64KB FLASH 100 TQFP 14x14x1mm TRAY
• Manufacturer: Microchip Technology
• Series: PIC® 24Hr

Specifications of PIC24HJ64GP510A-E/PF

• Core Processor: PIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: CAN, I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 64KB (22K x 24)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 32x10b/12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC24HJXXXGPX06A/X08A/X10A
21.2
All of the PIC24HJXXXGPX06A/X08A/X10A devices
power their core digital logic at a nominal 2.5V. This
may create an issue for designs that are required to
operate at a higher typical voltage, such as 3.3V. To
simplify
PIC24HJXXXGPX06A/X08A/X10A family incorporate
an on-chip regulator that allows the device to run its
core logic from V
The regulator provides power to the core from the other
V
than 5 ohms) capacitor (such as tantalum or ceramic)
be connected to the V
This helps to maintain the stability of the regulator. The
recommended value for the filter capacitor is provided
in Table 24-13 of Section 24.1 “DC Characteristics”.
On a POR
voltage regulator to generate an output voltage. During
this time, designated as T
disabled. T
resumes operation after any power-down.
FIGURE 21-1:
DS70592B-page 224
Note 1:
DD
Note:
pins. The regulator requires that a low-ESR (less
2:
On-Chip Voltage Regulator
C
,
system
STARTUP
it takes approximately 20 s for the on-chip
EFC
These are typical operating voltages. Refer to
TABLE 24-13: “Internal Voltage Regulator
Specifications” located in Section 24.1 “DC
Characteristics” for the full operating ranges
of V
It is important for the low-ESR capacitor to
be placed as close as possible to the V
V
It is important for the low-ESR capacitor to
be placed as close as possible to the
V
DDCORE
CAP
DD
3.3V
DD
/V
and V
DDCORE
.
pin.
design,
is applied every time the device
CAP
ON-CHIP VOLTAGE
REGULATOR
CONNECTIONS
CAP
V
V
V
DD
CAP
SS
/V
PIC24H
STARTUP
/V
pin.
DDCORE
/V
DDCORE
DDCORE
all
, code execution is
.
devices
pin (Figure 21-1).
(1)
CAP
in
/
Preliminary
the
21.3
The BOR (Brown-out Reset) module is based on an
internal voltage reference circuit that monitors the reg-
ulated voltage V
the BOR module is to generate a device Reset when a
brown-out condition occurs. Brown-out conditions are
generally caused by glitches on the AC mains (i.e.,
missing portions of the AC cycle waveform due to bad
power transmission lines or voltage sags due to exces-
sive current draw when a large inductive load is turned
on).
A BOR will generate a Reset pulse which will reset the
device. The BOR will select the clock source, based on
the device Configuration bit values (FNOSC<2:0> and
POSCMD<1:0>). Furthermore, if an oscillator mode is
selected, the BOR will activate the Oscillator Start-up
Timer (OST). The system clock is held until OST
expires. If the PLL is used, then the clock will be held
until the LOCK bit (OSCCON<5>) is ‘1’.
Concurrently, the PWRT time-out (TPWRT) will be
applied before the internal Reset is released. If
TPWRT = 0 and a crystal oscillator is being used, then
a nominal delay of TFSCM = 100 is applied. The total
delay in this case is TFSCM.
The BOR Status bit (RCON<1>) will be set to indicate
that a BOR has occurred. The BOR circuit continues to
operate while in Sleep or Idle modes and will reset the
device should VDD fall below the BOR threshold volt-
age.
BOR: Brown-out Reset
CAP
/V
DDCORE
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