English
Language : 

M052LDN Datasheet, PDF (20/86 Pages) List of Unclassifed Manufacturers – 32-bit Microcontroller
M051 DN/DE
30
45
31
46
32
47
1
1
NC
2
NC
3
NC
19
NC
20
14
21
15
22
16
23
17
25
18
26
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RXD1[2] AIN2
TXD1[2] AIN3
I/O
Port 1 supports multi-function pins, including T2, T3,
RXD1, TXD1, SPISS0, MOSI_0, MISO_0, SPICLK0, AIN0
~ AIN7, nWRL, nWRH, ACMP0_N, ACMP0_P,
I/O ACMP2_N, and ACMP2_P.
SPISS0
AIN4 ACMP0_N
The SPISS0, MOSI_0, MISO_0, and SPICLK0 pins are for
I/O SPI function.
The AIN0 ~ AIN7 pins are for 12 bits ADC function.
MOSI_0 AIN5 ACMP0_P I/O The RXD1 and TXD1 pins are for UART1 function.
The nWRL and nWRH pins are for low/high byte write
MISO_0 AIN6 ACMP2_N I/O enable output in 16-bit data width of EBI.
The ACMP0_N and ACMP0_P pins are for ACMP0
negative/positive inputs.
The ACMP2_N and ACMP2_P pins are for ACMP2
SPICLK0 AIN7 ACMP2_P I/O negative/positive inputs.
The T2 and T3 pins are for Timer2/3 external even
counter input and toggle mode output.
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
PWM0[2] AD8
PWM1[2] AD9
PWM2[2] AD10
PWM3[2] AD11
PWM4 AD12
PWM5 AD13
SCL1[2]
SDA1[2]
I/O The P2.0 ~ P2.7 pins are called Port 2. Port 2 is a general
purpose I/O port, which can be configured as Input,
Output, Quasi-bidirectional and Open-drain mode.
I/O
Port 2 supports multi-function pins, including PWM0 ~
PWM7, AD8 ~ AD15, SCL1, SDA1 and ACMP1_O.
I/O
The PWM0~PWM7 pins are for PWM function in the
LQFP48 package.
I/O AD8 ~ AD15 belong to EBI function for external memory
accessing.
I/O The SDA1 and SCL1 pins are for I2C1 function and both
of them are open-drain.
I/O The ACMP1_O pin is the output of ACMP1.
P2.6 PWM6 AD14 ACMP1_O I/O
NC
27
P2.7 PWM7 AD15
I/O
3
5
5
7
6
8
NC
9
7
10
8
11
9
13
NC
14
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
RXD[2]
ACMP1_N I/O The P3.0 ~ P3.7 pins are called Port 3. Port 3 is a general
purpose I/O port, which can be configured as Input,
TXD[2]
Output, Quasi-bidirectional and Open-drain mode.
ACMP1_P I/O
Port 3 supports multi-function pins, including RXD, TXD,
nINT0 STADC T0EX
nINT0, nINT1, T0, T1, nWR, nRD, STADC, MCLK, SDA,
I/O SCL, CKO, ACMP1_N, ACMP1_P, T0EX, T1EX,
ACMP0_O.
nINT1 MCLK T1EX I/O The RXD and TXD pins are for UART0 function.
The nINT0 and nINT1 pins are for external interrupt input.
T0
SDA
I/O The T0 and T1 pins are for Timer0/1 external even
counter input and toggle mode output.
T1
SCL
CKO[2]
I/O The nWR, nRD and MCLK are for EBI function.
nWR
The STADC pin is for ADC external trigger input.
CKO ACMP0_O I/O The SDA and SCL pins are for I2C function and both of
them are open-drain.
The CKO is clock output pin for clock monitor.
nRD
The ACMP1_N and ACMP1_P pins are for ACMP1
I/O negative/positive inputs.
The T0EX and T1EX pins are for external capture/reset
trigger input of Timer0/1.
The ACMP0_O pin is the output of Analog ACMP0.
NC
24
P4.0 PWM0[2]
T2EX I/O The P4.0 ~ P4.7 pins are called Port 4. Port 4 is a general
Oct. 05, 2015
Page 20 of 86
Rev 1.03