Nuc120 series data sheet – Rainbow Electronics NUC120 User Manual
Page 19
NUC120 Series DATA SHEET
Publication Release Date: May 31, 2010
- 19 -
Revision V1.02
Pin No.
LQFP
100
LQFP
64
LQFP
48
Pin Name Pin Type
Description
79
Vref
AP
Voltage reference input for ADC
80 52 40
AVDD
AP
Power supply for internal analog circuit
PD.0
I/O
General purpose input/output digital pin
81
/SPISS20
I/O
/SPISS20: SPI2 slave select pin
PD.1
I/O
General purpose input/output digital pin
82
SPICLK2
I/O
SPICLK2: SPI2 serial clock pin
PD.2
I/O
General purpose input/output digital pin
83
MISO20
I
MISO20: SPI2 MISO (Master In, Slave Out) pin
PD.3
I/O
General purpose input/output digital pin
84
MOSI20
O
MOSI20: SPI2 MOSI (Master Out, Slave In) pin
PD.4
I/O
General purpose input/output digital pin
85
MISO21
I
MISO21:
SPI2
2
nd
MISO (Master In, Slave Out) pin
PD.5
I/O
General purpose input/output digital pin
86
MOSI21
O
MOSI21:
SPI2
2
nd
MOSI (Master Out, Slave In) pin
PC.7
I/O
General purpose input/output digital pin
87 53 41
CPN0
I
CPN0: Comparator0 Negative input pin
PC.6
I/O
General purpose input/output digital pin
88 54 42
CPP0
I
CPP0: Comparator0 Positive input pin
PC.15
I/O
General purpose input/output digital pin
89 55
CPN1
I
CPN1: Comparator1 Negative input pin
PC.14
I/O
General purpose input/output digital pin
90 56
CPP1
I
CPP1: Comparator1 Positive input pin
PB.15
I/O
General purpose input/output digital pin
91 57 43
/INT1
I
/INT1: External interrupt0 input pin
92 58 44
XT1_OUT O
Crystal output pin
93 59 45
XT1_IN
I
Crystal input pin
94 60 46
/RESET I
External reset input: Low active, set this pin low reset
MCU to initial state. With internal pull-up.
95 61
VSS1
P
Ground