NuMicro® NUC029LEE/NUC029SEE
32-bit Arm
®
Cortex
®
-M0 Microcontroller
Aug, 2018
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Rev 1.00
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4.4 Pin Description
4.4.1 NuMicro
®
NUC029LEE/NUC029SEE Pin Description
Pin No.
Pin Name
Pin
Type
Description
LQFP
64-pin
LQFP
48-pin
1
PB.14
I/O
General purpose digital I/O pin.
INT0
I
External interrupt0 input pin.
AD0
I/O
EBI Address/Data bus bit0
2
PB.13
I/O
General purpose digital I/O pin.
AD1
I/O
EBI Address/Data bus bit1
3
1
V
BAT
P
Power supply by batteries for RTC.
4
2
X32_OUT
O
External 32.768 kHz (low speed) crystal output pin.
5
3
X32_IN
I
External 32.768 kHz (low speed) crystal input pin.
6
4
PA.11
I/O
General purpose digital I/O pin.
I2C1_SCL
I/O
I
2
C1 clock pin.
nRD
O
EBI read enable output pin
7
5
PA.10
I/O
General purpose digital I/O pin.
I2C1_SDA
I/O
I
2
C1 data input/output pin.
nWR
O
EBI write enable output pin
8
6
PA.9
I/O
General purpose digital I/O pin.
I2C0_SCL
I/O
I
2
C0 clock pin.
9
7
PA.8
I/O
General purpose digital I/O pin.
I2C0_SDA
I/O
I
2
C0 data input/output pin.
10
8
PB.4
I/O
General purpose digital I/O pin.
UART1_RXD
I
Data receiver input pin for UART1.
11
9
PB.5
I/O
General purpose digital I/O pin.
UART1_TXD
O
Data transmitter output pin for UART1.
12
PB.6
I/O
General purpose digital I/O pin.
UART1_nRTS
O
Request to Send output pin for UART1.
ALE
O
EBI address latch enable output pin
13
PB.7
I/O
General purpose digital I/O pin.
UART1_nCTS
I
Clear to Send input pin for UART1.