PIC24HJ128GP510-I/PT Microchip Technology Inc., PIC24HJ128GP510-I/PT Datasheet - Page 222

• Manufacturer Part Number: PIC24HJ128GP510-I/PT
• Description: MCU, 16-Bit, 128KB Flash, 8KB RAM, 85 I/O, TQFP-100
• Manufacturer: Microchip Technology Inc.

Specifications of PIC24HJ128GP510-I/PT

• A/d Inputs: 32 Channel, 12-Bit
• Cpu Speed: 40 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 85
• Interface: CAN/I2C/SPI/UART
• Memory Type: Flash
• Number Of Bits: 16
• Number Of Inputs: 85
• Number Of Pins: 100
• Package Type: 100-pin TQFP
• Programmable Memory: 128K Bytes
• Ram Size: 8K Bytes
• Speed: 40 MIPS
• Timers: 9-16-bit, 4-32-bit
• Voltage, Range: 3-3.6 V
• Voltage, Rating: 3-3.6 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC24HJXXXGPX06/X08/X10
20.2
All of the PIC24HJXXXGPX06/X08/X10 devices power
their core digital logic at a nominal 2.5V. This may cre-
ate an issue for designs that are required to operate at
a higher typical voltage, such as 3.3V. To simplify sys-
tem
PIC24HJXXXGPX06/X08/X10 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 23-13: “Internal Voltage Regulator Speci-
fications” located in Section 23.1 “DC Characteris-
tics”.
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 20-1:
DS70175F-page 220
DD
Note 1:
pins. The regulator requires that a low-ESR (less
On-Chip Voltage Regulator
10
design,
,
STARTUP
it takes approximately 20 μs for the on-chip
μF
DD
These are typical operating voltages. Refer
to TABLE 23-13: “Internal Voltage Regu-
lator Specifications” located in
Section 23.1 “DC Characteristics” for the
full operating ranges of V
.
3.3V
is applied every time the device
all
DDCORE
ON-CHIP VOLTAGE
REGULATOR
CONNECTIONS
V
V
V
DD
DDCORE
SS
PIC24H
STARTUP
/V
devices
/V
CAP
CAP
, code execution is
DD
pin (Figure 20-1).
(1)
and V
DDCORE
in
.
the
20.3
The BOR (Brown-out Reset) module is based on an
internal voltage reference circuit that monitors the reg-
ulated voltage V
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
ive 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 nomi-
nal delay of TFSCM = 100 ìs 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, if enabled,
continues to operate while in Sleep or Idle modes and
will reset the device should VDD fall below the BOR
threshold voltage.
BOR: Brown-Out Reset
DDCORE
. The main purpose of the BOR
© 2007 Microchip Technology Inc.