ST STM32L053 - Figure 3. Top Layout

UM1775 Rev 4 11/39
UM1775 Hardware layout
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Figure 3. Top layout
MSv34155V3
I
DD
measurement
(JP4)
COM
(LD1)
NFC connector
(CN1)
VCP RX, TX
(SB2, SB3)
Linear touch sensor
/
Touchkeys
3 V power
supply output
USB ST-LINK
ST-LINK/V2-1
USB USER
RX,TX
(JP3)
Reserved
(JP1)
Reserved
(JP2)
Configuration
(BOOT0)
Green LED
(LD3)
Red LED
(LD4)
User button
(B1)
Reset button
(B2)
2.13" E-paper display
(U4)
5 V power
supply input
5 V power
supply output
ST-LINK/DISCOVERY
selector (CN4)
PWR
(LD2)