M052LDN Datasheet, PDF (54/86 Pages) List of Unclassifed Manufacturers – 32-bit Microcontroller

7 APPLICATION CIRCUIT
M051 DN/DE
Power
AVCC
0.1uF
DVCC
0.1uF
AVDD
FB
VDD
VSS
FB
AVSS
SWD
Interface
Crystal
VDD
ICE_CLK
ICE_DAT
nRST
VSS
20p
XTAL1
M05xxDN/DE
LQFP48
20p
4~24 MHz
crystal
XTAL2
DVCC
AD[15:0]
SPISS0
SPICLK0
MISO_0
MOSI_0
[1]
CS
CLK
MISO
MOSI
DVCC
VDD
SPI Device
VSS
DVCC
DVCC
4.7K 4.7K
SCL0
CLK
SDA0
DIO
VDD
I²C Device
VSS
ALE
nCS
nRD
nWR
nWRL
nWRH
AD[15:0]
LATCH
D
Q
En
64K x 16-bit
SRAM
Addr[15:0]
nCE
nOE
nWE
nLB
nUB
Data[15:0]
EBI
Reset
Circuit
10K
10uF/25V
nRST
TXD
RS232 Transceiver PC COM Port
RXD
TXD
ROUT RIN
TIN TOUT
UART
LDO
LDO_CAP
1uF
Note: For the SPI device, the M05xx chip supply
voltage must be equal to SPI device working
voltage. For example, when the SPI Flash
working voltage is 3.3 V, the M05xx chip supply
voltage must also be 3.3V.
Oct. 05, 2015
Page 54 of 86
Rev 1.03