ST STM32L053 - Page 30

Hardware layout UM1775
30/39 UM1775 Rev 4
PC14 3
OSC32_IN
--------
PC14
--5---
PC15 4
OSC32_OUT
--------
PC15
--6---
PH0 5
OSC_IN
-----------7---
PH1 6---------
PH1
--8---
- - ----------
5V_USB_USER
---1-
- - ----------
3V3
1-7--
- - ----------
5V_IN
-1---
- - ----------
5V_OUT
-3---
VDD 24----------
VDD
5----
VDD 48----------
VDD
-----
VDD_USB36----------
VDD
-----
VDDA 9----------
-
-----
VLCD 1----------
VDD
-----
VSS 23----------
GND
2284
(2)
-
Table 8. Extension connectors (continued)
MCU pin Board function
Main function LQFP48 pin num. SYSTEM VCP PushButtons LED NFC CR95HF-B USB USER Linear touch sensor E-paper Display Idd Measure Free I/O Power Supply P2 P3 CN1 CN3 SBx
(1)