MS51
Nov. 28, 2019
Page
21
of 491
Rev 1.00
MS51
32K
SE
RIES
TE
CHNICAL RE
F
EREN
CE MA
N
UAL
4.2
MS51 32K Series Pin Description
Pin Number
Symbol
Multi-Function Description
[1]
MS51XC0BE
QFN 20
MS51FC0AE
TSSOP20
MS51EC0AE
TSSOP28
MS51PC0AE
LQFP 32
MS51TC0AE
QFN 33
6
9
3
6
VDD
Supply voltage V
DD
for operation.
4
7
1
4
VSS
Ground potential.
13
16
16
23
P0.0
Port 0 bit 0.
PWM0_CH3
PWM0 output channel 3.
PWM2_CH1
PWM2 output channel 1.
IC3
Input capture channel 3.
SPI0_MOSI
SPI master output/slave input.
UART1_RX
UART1 receive input.
XT1_IN
External 4~24 MHz (high speed) crystal input
pin.
OSCIN
If the EXTEN[1:0] = 10b, OSCIN is the external
clock input pin.
T1
External count input to Timer/Counter 1 or its
toggle output.
14
17
17
24
P0.1
Port 0 bit 1.
PWM0_CH4
PWM0 output channel 4.
PWM3_CH0
PWM3 output channel 0.
IC4
Input capture channel 4.
SPI0_MISO
SPI master input/slave output.
XT1_OUT
External 4~24 MHz (high speed) crystal output
pin.
15
18
19
26
P0.2
Port 0 bit 2.
I2C0_SCL
I
2
C clock.
UART1_RXD
UART1 receive input.
ICE_CLK
ICE / ICP clock input.
16
19
20
27
P0.3
Port 0 bit 3.
ADC_CH6
ADC input channel 6.
PWM0_CH5
PWM0 output channel5
PWM3_CH1
PWM3 output channel1
IC5
Input capture channel 5.
UART2_TXD
6
UART2 transmit data output.
SC0_CLK
6
Smart Card 0 clock pin
17
20
21
28
P0.4
Port 0 bit 4.
ADC_CH5
ADC input channel 5.
PWM0_CH3
PWM0 output channel 3.
PWM2_CH1
PWM2 output channel 1.
IC3
Input capture channel 3.
UART2_RXD
6
UART2 receive input.
SC0_DAT
Smart Card 0 data pin
STADC
External start ADC trigger
18
1
22
29
P0.5
Port 0 bit 5.
ADC_CH4
ADC input channel 4.
PWM0_CH2
PWM0 output channel 2.
PWM2_CH0
PWM2 output channel 0.
IC6
Input capture channel 6.
UART3_TXD
UART3 transmit data output.
SC1_CLK
Smart card clock pin.
T0
External count input to Timer/Counter 0 or its
toggle output.
19
2
23
30
P0.6
Port 0 bit 6.
