MA320013

P1-P3 P4-P6 P7-P8

PIC32MX270F256D

DS50002268A-page 4 © 2014 Microchip Technology Inc.

FIGURE 2: 44-PIN DEVICE SCHEMATIC

+3.3V +3.3V +3.3V

VCORE/VCAP

VCORE/VCAP

GPIO_18/UART2_RX

+3.3V

+3.3V

+3.3V

+3.3V

+3.3V

RB9

1

RC6

2

RC7

3

RC8

4

RC9

5

VSS

6

VCAP

7

D+/RB10

8

D-/RB 11

9

VUSB3V3

10

RB13

11

TMS/RA10

12

TCK/RA7

13

RB14

14

RB15

15

AVSS

16

AVDD

17

MCLR

18

PGED 3/RA0/AN0

19

PGEC3/RA1

20

PGED 1/RB0

21

PGEC1/RB1

22

RB2

23

RB3

24

RC0

25

RC1

26

RC2

27

VDD

28

VSS

29

OSC1/RA2

30

OSC2/RA3

31

TDO/RA8

32

RB4

33

RA4

34

TDI/RA9

35

RC3

36

RC4

37

RC5

38

VSS

39

VDD

40

USBID/RB5

41

VBUS

42

RB7

43

RB8

44

U1

PIC32MX270F256D-50I/PT

GPIO_19/UART2_TX

GPI O _21/UART2_RTS

GPI O _20/UART2_CTS

GPIO_12/STBY/RST

GPIO_5/REFCLKO/I2S1_MCLK

GPIO_8/ SSI /I2S1_LRCL

GPIO_6/SCK1/I2S1_BCLK

GPIO_9/I2S1_SDO

GPIO_4/UART1_RTS

GPIO_1/UART1_Rx

GPIO_2/UART1_Tx

GPIO_3/UART1_CTS

GPIO_7/I2 C1_SCLGPIO_10/ISC1_SDA

GPIO_22/SCK2/I2S2_BCLK

GPIO_27/SPI2_SDI GPIO_25/I2S2_SDO

PIC32_MCLR

SW1

SW2

SW3

SW4

SW5

PIC32_D-

PIC32_D+

PGEC2/PGEC4

PGED2/PGED4

XTAL (8mhZ)

@pin 10_U1 @pin 7_U1@pin 17_U1 @pin 28_U1 @pin 40_U1

VBUS_SENSE

XTAL (8mhZ)_2

VBUS

VOLUME

GND

+3.3V

+3.3V

A_DET#

FLASH_CS/SS2

0.1uF

C1

0.1uF

C2

0.1uF

C3

0.1uF

C4

10uF

C6

© 2014 Microchip Technology Inc. DS50002268A-page 5

PIC32MX270F256D

FIGURE 3: MCP23008 EXPANDER

SCL

1

SDA

2

A2

3

A1

4

A0

5

RESET

6

NC

7

INT

8

VDD

20

GP7

19

GP6

18

GP5

17

GP4

16

GP3

15

GP2

14

GP1

13

VSS

9

GP0

12

NC

10

NC

11

U2

MCP23008

+3.3V

LED5

LED1

LED2

LED3

LED4

USB_SEL0/S

U SB_SEL1/OE_N

GPIO_32

DNP

R2

DNP

R1

+3.3V

GPIO_7/I2C1_SCL

GPIO_10/ISC1_SDA

+3.3V

+3.3V

1

2

3

J1

+3.3V

10K

R3

DNP

R4

De vice Address

8-bit I/O Ex pa nde r w/Seria l Int e rface

0x 20h

0x 22h

0.1uF

C5

MCP23008 Pinout

Pin #

Pin

Name

PIM Pin #

Functional

Description

12 GP0 60 LED1

13 GP1 61 LED2

14 GP2 91 LED3

15 GP3 92 LED4

16 GP4 28 LED5

17 GP5 89 USB_SEL/OE#

18 GP6 90 USB_SEL/S

19 GP7 84 GPIO_32

PIC32MX270F256D

DS50002268A-page 6 © 2014 Microchip Technology Inc.

REVISION HISTORY

Revision A (May 2014)

This is the initial released version of this document.

P1-P3 P4-P6 P7-P8

MA320013

Mfr. #:

Manufacturer:

Microchip Technology

Description:

Daughter Cards & OEM Boards PIC32MX270256 PIM Blue Tooth Audio Kit

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet

MA320013