PIC32MX440F512H-80I/PT Microchip Technology, PIC32MX440F512H-80I/PT Datasheet - Page 554

• Manufacturer Part Number: PIC32MX440F512H-80I/PT
• Description: IC PIC MCU FLASH 512K 64-TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX440F512H-80I/PT

• Program Memory Type: FLASH
• Program Memory Size: 512KB (512K 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
• No. Of I/o's: 51
• Ram Memory Size: 32KB
• Cpu Speed: 80MHz
• No. Of Timers: 5
• Embedded Interface Type: EUART, I2C, PSP, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC244003 - 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

PIC32MX3XX/4XX
26.2.9
The WDT has a 5-bit postscaler to create a wide variety
of time-out periods. This postscaler provides 1:1
through 1: 1048576 divider ratios. Time-out periods
that range between 1 ms and 1048.576 seconds
(nominal) can be achieved using the postscaler.
The postscaler settings are selected using the WDTPS
bits in the DEVCFG1 Configuration register. The time-
out period of the WDT is calculated as follows:
EQUATION 26-1:
TABLE 26-3:
DS61143C-page 552
Note 1:
FWDTPS<4:0>
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
10000
10001
10010
10011
10100
2:
All other combinations will result in an
operation as if the prescaler was set to
10100.
The periods listed are based on a 32 kHz
(nominal) input clock.
WDT POSTSCALERS
WDT Period = 1 ms • 2
WDT TIME-OUT PERIOD VS.
POSTSCALER SETTINGS
Postscaler
1:1045876
WDT TIME-OUT PERIOD
CALCULATIONS
1:131072
1:262144
1:524288
1:16384
1:32768
1:65536
1:1024
1:2048
1:4096
1:8192
Ratio
1:128
1:256
1:512
1:16
1:32
1:64
1:1
1:2
1:4
1:8
Prescaler
Time-out
Period
1048.576 s
131.072 s
262.144 s
524.288 s
16.384 s
32.768 s
65.536 s
128 ms
256 ms
512 ms
1.024 s
2.048 s
4.096 s
8.192 s
16 ms
32 ms
64 ms
1 ms
2 ms
4 ms
8 ms
Preliminary
© 2008 Microchip Technology Inc.