PIC32MX440F256H-80I Datasheet, PDF(17/646 Page) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

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PIC32MX440F256H-80I Datasheet, PDF (17/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

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PIC32MX3XX/4XX

FIGURE 1-2:

PORTA(1,4)

PORTB

PORTC(1)

PORTD(1)

PORTE(1)

PORTF(1)

PORTG(1)

PIC32MX4XX BLOCK DIAGRAM (USB)

OSC2/CLKO

OSC1/CLKI

OSC/SOSC

Oscillators

FRC/LPRC

Oscillators

PLL

DIVIDERS

PLL-USB

Timing

Generation

VDDCORE/VCAP

ENVREG

Voltage(1)

Regulator

Precision

Band Gap

Reference

USBCLK

SYSCLK

PBCLK

Peripheral Bus Clocked by SYSCLK

Power-up

Timer

Oscillator

Start-up Timer

Power-on

Reset

Watchdog

Timer

Brown-out

Reset(2)

JTAG

BSCAN

Priority

Interrupt

Controller

EJTAG

INT

USB

DMAC(1)

ICD

32

MIPS M4K CPU Core

IS

DS

32

32

32

32

32

32

Bus Matrix

32

32

32

32

Pre-Fetch

Module(1)

Data RAM

Peripheral Bridge

128

128-bit wide

Program Flash Memory

Peripheral Bus Clocked by PBCLK

VDD, VSS

MCLR

CN1-22(1)

PWM

OC 1,5

IC 1,5

SPI 1,2(1)

I2C 1,2

PMP(1)

UART 1,2

Comparators

Timer1

Timer2

Timer3

Timer4

Timer5

RTCC

10-bit ADC

Note 1: Not all pins or features are implemented on all device pinout configurations. See Table 1-5 for I/O port pin descriptions.

2: Some features are not available on certain device variants.

3: BOR functionality is provided when the on-board voltage regulator is enabled.

4: PORTA is not present on 64 pin devices

Â© 2008 Microchip Technology Inc.

Preliminary

DS61143E-page 15

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