PIC32MX440F512H-80I/MR Microchip Technology, PIC32MX440F512H-80I/MR Datasheet - Page 8

• Manufacturer Part Number: PIC32MX440F512H-80I/MR
• Description: IC PIC MCU FLASH 512KX32 64-QFN
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX440F512H-80I/MR

• Core Size: 32-Bit
• Program Memory Size: 512KB (512K x 8)
• Core Processor: MIPS32® M4K™
• 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
• 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
• Controller Family/series: PIC32
• Ram Memory Size: 32KB
• Cpu Speed: 80MHz
• No. Of Timers: 5
• Interface: EUSART, I2C, SPI, USB
• No. Of Pwm Channels: 5
• Embedded Interface Type: EUSART, I2C, SPI, USB
• Rohs Compliant: Yes
• Processor Series: PIC32MX4xx
• Core: MIPS
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: I2C, JTAG, SPI, TWI, UART, USB
• Maximum Clock Frequency: 80 MHz
• Number Of Programmable I/os: 51
• Number Of Timers: 5
• Operating Supply Voltage: 2.3 V to 3.6 V
• Maximum Operating Temperature: + 125 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 876-1000 - PIC32 BREAKOUT BOARD
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

PIC32MX3XX/4XX
11. Module: I/O PORTs
12. Module: Timers
13. Module: Timers
DS80440D-page 8
When using the hardware assisted read-modify-
write registers, PORTxINV, PORTxSET and
PORTxCLR, the source used for the operation is
the LATx register, not the PORTx register. This
only affects users who want to use the pins in a
bidirectional mode or to store sampled PORTx
data in the LATx register.
Work around
Use a software read-modify-write sequence, such
as:
//replaces PORTAINV = mask;
x = PORTA ^ mask;
LATA = x;
//replaces PORTASET = mask;
x = PORTA | mask;
LATA = x;
//replaces PORTACLR = mask;
x = PORTA & ~mask;
LATA = x;
Affected Silicon Revisions
The TMRx register stays at zero for two timer clock
cycles when the PRx register is 0x0000.
Work around
None.
Affected Silicon Revisions
The timer prescaler may not be reset correctly
when it is used with a slow external clock. This can
occur when the timer is disabled and then re-
enabled. The result could be a spurious count in
the prescaler.
Work around
To ensure a Reset of the prescaler, firmware
must wait for at least 2 input clock periods
before re-enabling the timer.
Affected Silicon Revisions
B2
B2
B2
Note:
X
X
X
B3
B3
B3
X
X
X
These sequences are not atomic.
B4
B4
B4
X
X
X
B6
B6
B6
X
X
X
14. Module: Timers
15. Module: UART
16. Module: Watchdog Timer (WDT)
The Timer1 prescaler may not be reset correctly
when it is used with a slow external clock. This can
occur when the timer is disabled and then re-
enabled. The result could be a spurious count in
the prescaler.
Work around
None.
Affected Silicon Revisions
The CTS pin does not deassert until at least 2
bytes are free in the UART FIFO.
Work around
The UART TXREG must be read at least 2 times
to rearm the hardware handshaking lines.
Affected Silicon Revisions
An incorrect WDT Time-out Reset may occur
when both of these conditions are present:
1. WDT is enabled.
2. Either a MCLR (EXTR) or Software Reset
Work around
To detect incorrect WDT Time-out Reset, always
confirm that only the WDTO bit is set in the RCON
register. If EXTR, SWR, or any other Reset bits are
set, it indicates that an incorrect WDT has
occurred.
Affected Silicon Revisions
B2
B2
B2
X
X
X
(SWR) occurs just before WDT is about to
expire.
B3
B3
B3
X
X
X
B4
B4
B4
X
X
X
© 2010 Microchip Technology Inc.
B6
B6
B6
X
X
X