PIC32MX664F064HT-I/MR Microchip Technology, PIC32MX664F064HT-I/MR Datasheet - Page 171

• Manufacturer Part Number: PIC32MX664F064HT-I/MR
• Description: 64 PINS, 64KB Flash, 32KB RAM, 80 MHz, USB, Ethernet, 4 DMA 64 QFN 9x9x0.9mm T/R
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX664F064HT-I/MR

• Core Processor: MIPS32® M4K™
• Core Size: 32-Bit
• Speed: 80MHz
• Connectivity: Ethernet, I²C, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN Exposed Pad
• Processor Series: PIC32MX5x
• Core: MIPS32
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 80 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 5
• Operating Supply Voltage: 2.3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

28.3
All PIC32MX5XX/6XX/7XX devices’ core and digital
logic are designed to operate at a nominal 1.8V. To
simplify system designs, most devices in the
PIC32MX5XX/6XX/7XX family incorporate an on-chip
regulator providing the required core logic voltage from
V
A low-ESR capacitor (such as tantalum) must be
connected to the V
This helps to maintain the stability of the regulator.
The recommended value for the filter capacitor is
provided in
28.3.1
It takes a fixed delay for the on-chip regulator to generate
an output. During this time, designated as T
execution is disabled. T
device resumes operation after any power-down,
including Sleep mode.
If the regulator is disabled, a separate Power-up Timer
(PWRT) is automatically enabled. The PWRT adds a
fixed delay of T
Section 31.0 “Electrical Characteristics”
information on T
28.3.2
PIC32MX5XX/6XX/7XX devices also have a simple
brown-out capability. If the voltage supplied to the
regulator is inadequate to maintain a regulated level,
the regulator Reset circuitry will generate a Brown-out
Reset. This event is captured by the BOR flag bit
(RCON<1>). The brown-out voltage levels are specific
in
© 2010 Microchip Technology Inc.
DD
Note:
Section 31.1 “DC Characteristics”
.
On-Chip Voltage Regulator
It is important that the low-ESR capacitor
is placed as close as possible to the
V
ON-CHIP REGULATOR AND POR
ON-CHIP REGULATOR AND BOR
Section 31.1 “DC Characteristics”
CAP
PU AND
/V
CORE
CAP
PWRT
/V
T
PU
PWRT
pin.
CORE
at device start-up. See
is applied every time the
.
pin (see
.
Figure
for more
PU
, code
28-2).
.
28.3.3
The on-chip regulator is designed to meet the power-up
requirements for the device. If the application does not
use the regulator, then strict power-up conditions must
be adhered to. While powering up, V
exceed V
FIGURE 28-2:
PIC32MX5XX/6XX/7XX
Note 1:
(10 μF typ)
2:
DD
C
POWER-UP REQUIREMENTS
EFC
by 0.3V.
These are typical operating voltages. Refer
to
the full operating ranges of V
V
It is important that the low-ESR capacitor
is placed as close as possible to the
V
CORE
CAP
(2)
Section 31.1 “DC Characteristics”
3.3V
/V
.
CORE
(1)
CONNECTIONS FOR THE
ON-CHIP REGULATOR
pin.
V
V
V
DD
CAP
SS
PIC32
/V
CORE
DS61156F-page 171
CORE
DD
and
must never
for