NUC120RE3DN datasheet(34/107 Pages) NUVOTON

Part #	NUC120RE3DN

Description	ARM짰 Cortex짰-M 32-bit Microcontroller

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Manufacturer	NUVOTON [Nuvoton Technology Corporation]

Direct Link	http://www.nuvoton.com

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34 / 107 page

NUC100/120xxxDN

Aug 31, 2015

Page 34 of 107

Rev 1.01

4.3.2

NuMicro

® NUC120 Pin Description

Pin No.

Pin Name

Pin Type Description

LQFP

100-pin

LQFP

64-pin

LQFP

48-pin

1

PE.15

I/O

General purpose digital I/O pin.

2

PE.14

I/O

General purpose digital I/O pin.

3

PE.13

I/O

General purpose digital I/O pin.

4

1

PB.14

I/O

General purpose digital I/O pin.

/INT0

I

External interrupt0 input pin.

SPISS31

I/O

2

nd SPI3 slave select pin.

5

2

PB.13

I/O

General purpose digital I/O pin.

CPO1

O

Comparator1 output pin.

AD1

I/O

EBI Address/Data bus bit1

6

3

1

PB.12

I/O

General purpose digital I/O pin.

CPO0

O

Comparator0 output pin

CLKO

O

Frequency Divider output pin

AD0

I/O

EBI Address/Data bus bit0

7

4

2

X32O

O

External 32.768 kHz low speed crystal output pin

8

5

3

X32I

I

External 32.768 kHz low speed crystal input pin

9

6

4

PA.11

I/O

General purpose digital I/O pin.

I2C1SCL

I/O

I

2C1 clock pin.

nRD

O

EBI read enable output pin

10

7

5

PA.10

I/O

General purpose digital I/O pin.

I2C1SDA

I/O

I

2C1 data input/output pin.

nWR

O

EBI write enable output pin

11

8

6

PA.9

I/O

General purpose digital I/O pin.

I2C0SCL

I/O

I

2C0 clock pin.

12

9

7

PA.8

I/O

General purpose digital I/O pin.

I2C0SDA

I/O

I

2C0 data input/output pin.

13

PD.8

I/O

General purpose digital I/O pin.

SPISS30

I/O

1

st SPI3 slave select pin.

14

PD.9

I/O

General purpose digital I/O pin.

SPICLK3

I/O

SPI3 serial clock pin.

15

PD.10

I/O

General purpose digital I/O pin.

MISO30

I/O

1

st SPI3 MISO (Master In, Slave Out) pin.

16

PD.11

I/O

General purpose digital I/O pin.

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NUC120RE3DN Datasheet(PDF) 34 Page - Nuvoton Technology Corporation

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