Data Sheet

ManualsBrandsDFRobot ManualsInternet of Things (IoT)Bluno M0 Microcontroller

NUC123

May 3, 2017 Page 22 of 99 Rev.2.04

NUC123 SERIES DATASHEET

Pin Description 4.4

4.4.1 NuMicro

®

NUC123 Pin Description

Pin No

Pin Name

Type

Description

LQFP 64-

pin

LQFP 48-

pin

QFN 33-

pin

1

3

1

PB.14

I/O

Digital GPIO pin

INT0

I

External interrupt 0 input pin

2

PB.13

I/O

Digital GPIO pin

3

PB.12

I/O

Digital GPIO pin

SPI1_SS0

I/O

SPI1 1

st

slave select pin

CLKO

O

Frequency Divider output pin

4

4

2

PA.11

I/O

Digital GPIO pin

SPI1_CLK

I/O

SPI1 serial clock pin

SPI2_MOSI0

I/O

SPI2 1

st

MOSI (Master Out, Slave In) pin

I2C1_SCL

I/O

I

2

C1 clock pin

5*

5*

3*

PA.10

I/O

Digital GPIO pin

SPI1_MISO0

I/O

SPI1 1

st

MISO (Master In, Slave Out) pin

SPI2_MISO0

I/O

SPI2 1

st

MISO (Master In, Slave Out) pin

I2C1_SDA

I/O

I

2

C1 data input/output pin

6

PD.8

I/O

Digital GPIO pin

SPI1_MOSI0

I/O

SPI1 1

st

MOSI (Master Out, Slave In) pin

7

PD.9

I/O

Digital GPIO pin

8

PD.10

I/O

Digital GPIO pin

CLKO

O

Frequency Divider output pin

9

PD.11

I/O

Digital GPIO pin

INT1

I

External interrupt 1 input pin

10

6

4

PB.4

I/O

Digital GPIO pin

UART1_RXD

I

UART1 data receiver input pin

SPI2_SS0

I/O

SPI2 1

st

slave select pin

SPI1_SS1

I/O

SPI1 2

nd

slave select pin

11

7

5

PB.5

I/O

Digital GPIO pin

UART1_TXD

O

UART1 data transmitter output pin

SPI2_CLK

I/O

SPI2 serial clock pin

12

8

PB.6

I/O

Digital GPIO pin

UART1_nRTS

O

UART1 request to send output pin