PIC32MX440F256H-80I/PT Microchip Technology, PIC32MX440F256H-80I/PT Datasheet - Page 110
![IC PIC MCU FLASH 256K 64-TQFP](/photos/6/81/68123/c04-066_pf_sml.jpg)
PIC32MX440F256H-80I/PT
Manufacturer Part Number
PIC32MX440F256H-80I/PT
Description
IC PIC MCU FLASH 256K 64-TQFP
Manufacturer
Microchip Technology
Series
PIC® 32MXr
Datasheets
1.MA320002.pdf
(208 pages)
2.DM320001.pdf
(44 pages)
3.PIC32MX320F032H-40IPT.pdf
(48 pages)
4.PIC32MX320F032H-40IPT.pdf
(66 pages)
5.PIC32MX320F032H-40IPT.pdf
(22 pages)
6.PIC32MX460F256L-80IPT.pdf
(632 pages)
7.PIC32MX320F064H-40IMR.pdf
(172 pages)
Specifications of PIC32MX440F256H-80I/PT
Program Memory Type
FLASH
Program Memory Size
256KB (256K x 8)
Package / Case
64-TFQFP
Core Processor
MIPS32® M4K™
Core Size
32-Bit
Speed
80MHz
Connectivity
I²C, IrDA, LIN, PMP, SPI, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
53
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
Processor Series
PIC32MX4xx
Core
MIPS
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
I2C , SPI , UART
Maximum Clock Frequency
80 MHz
Number Of Programmable I/os
51
Number Of Timers
5 x 16 bit, 1 x 32 bit
Operating Supply Voltage
2.3 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52713-733, 52714-737
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, DM320003, DM320002, MA320002
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
Controller Family/series
PIC32
Ram Memory Size
32KB
Cpu Speed
80MHz
No. Of Timers
5
Embedded Interface Type
EUSART, I2C, SPI, USB
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
876-1000 - PIC32 BREAKOUT BOARDAC244003 - TEST BD MPLAB REAL ICE LOOPBACKDM320003 - BOARD DEMO USB PIC32 OTGAC244006 - KIT MPLAB REAL ICE TRACEAC164327 - MODULE SKT FOR 64TQFP
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC32MX440F256H-80I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
PIC32MX440F256H-80I/PT
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
PIC32MX3XX/4XX
26.2
This section describes the operation of the WDT and
Power-Up Timer of the PIC32MX3XX/4XX.
The WDT, when enabled, operates from the internal
Low-Power Oscillator (LPRC) clock source and can be
used to detect system software malfunctions by reset-
ting the device if the WDT is not cleared periodically in
software. Various WDT time-out periods can be
selected using the WDT postscaler. The WDT can also
be used to wake the device from Sleep or Idle mode.
FIGURE 26-1:
26.3
All PIC32MX3XX/4XX device’s core and digital logic
are designed to operate at a nominal 1.8V. To simplify
system
PIC32MX3XX/4XX incorporate an on-chip regulator
providing the required core logic voltage from V
The internal 1.8V regulator is controlled by the
ENVREG pin. Tying this pin to V
lator, which in turn provides power to the core. A low
ESR capacitor (such as tantalum) must be connected
to the V
maintain the stability of the regulator. The recom-
mended value for the filer capacitor is provided in
Section 28.1 “DC Characteristics” .
DS61143F-page 108
Note:
WDTCLR =
WDT Enable
DDCORE
Watchdog Timer (WDT)
On-Chip Voltage Regulator
PWRT Enable
designs,
Oscillator
It is important that the low ESR capacitor
is placed as close as possible to the
V
WDT Enable
LPRC
DDCORE
Wake
/V
1
CAP
/V
WATCHDOG AND POWER-UP TIMER BLOCK DIAGRAM
pin (Figure 26-2). This helps to
CAP
most
pin.
DD
devices
enables the regu-
WDT Counter Reset
in
DD
Clock
.
Preliminary
the
25-bit Counter
FWDTPS<4:0>(DEVCFG1<20:16>)
The following are some of the key features of the WDT
module:
• Configuration or software controlled
• User-configurable time-out period
• Can wake the device from Sleep or Idle
Tying the ENVREG pin to V
this case, separate power for the core logic at a nomi-
nal 1.8V must be supplied to the device on the
V
Alternately, the V
tied together to operate at a lower nominal voltage.
Refer to Figure 26-2 for possible configurations.
26.3.1
When the voltage regulator is enabled, it takes fixed
delay for it to generate output. During this time, desig-
nated as T
every time the 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 28.0 “Electrical Characteristics” for more
information on T
1:64 Output
DDCORE
25
1
/V
PU
CAP
Decoder
ON-CHIP REGULATOR AND POR
, code execution is disabled. T
pin.
PU AND
PWRT Enable
DDCORE
PWRT
Power Save
T
© 2009 Microchip Technology Inc.
PWRT
/V
0
1
SS
at device start-up. See
CAP
disables the regulator. In
.
and V
Control
PWRT
Device Reset
NMI (Wake-up)
LPRC
DD
pins can be
PU
is applied