STMicroelectronics 32L4R9IDISCOVERY

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UM2271 Schematics

DocID030906 Rev 2 61/78

Figure 26. 32L4R9IDISCOVERY USB OTG FS

714

USB_OTG_FS

MB1311 C

28/08/2017

Title:

Size: Reference:

Date: Sheet: of

Revision:

STM32L4R9I-DISCOProject:

+5V

+3V3

VBUS

GND

Shield

USB_Micro-AB receptacle

Shield

EXP

CN9

475900001

PA9

PA10

PA11

PA12

MFX_GPIO13

VBUS OK

MFX_GPIO14

+3V3

transistor pins numbers follow

SOT23 JEDEC standard,

USB Full Speed operating range voltage: 3.0V<VDDUSB<3.6V

GND

OUT

FAULT

U16

STMPS2141STR

T13

9013-SOT23

VBUS

USB_OTG

USB_OTGFS_VBUS

USB_OTGFS_DM

USB_OTGFS_DP

USB_OTGFS_ID

USB_OTGFS_OVRCR

USB_OTG

USB_OTGFS_PPWR_EN

USB_OVER

U5V

47K

R40

47K

R39

Red

LD7

4.7uF

C43

0R41

620

R38

Green

LD6

47K

R113

10K

R114

330

R43

SB15

+5V

D_N

D_POpen drain

I/O1

GND

I/O2

I/O3

VBUS

I/O4

U18

USBLC6-4SC6

ESDA7P60-1U1M

Place Diode close to the pin 5 / 6 of

USBLC6-4SC6

Diode added, for USB Cable detach

workaround

iDiff Pair 90 ohm iDiff Pair 90 ohm

Main Page

Default Chapter2
- Table of Contents2
Features7
Product Marking7
System Requirements8
Development Toolchains8
Demonstration Software8
Ordering Information8
Technology Partners9
- Table 1. Ordering Information9
Bootloader Limitations10
AMOLED Display Limitation11
Hardware Layout and Configuration11
- Figure 3. Hardware Block Diagram12
- 32L4R9IDISCOVERY Layout13
- Figure 4. 32L4R9IDISCOVERY Top Side Layout13
- Figure 5. 32L4R9IDISCOVERY Bottom Side Layout14
- 32L4R9IDISCOVERY Mechanical Drawing15
- Figure 6. 32L4R9IDISCOVERY Mechanical Drawing (Top View, in MM)15
- Embedded ST_LINK/V2-116
- Low-Power Consumption Status17
- Figure 8. How to Update Driver Software17
- TAG and SWD18
- Table 3. SW1 Switch Setting18
- Power Supply19
- Clock Sources23
- Reset Source23
Connectors28
- Arduino Connectors CN10, CN11, CN16 and CN1728
- Table 13. Arduino Compatible Connectors28
- Table 14. JP3, VDDA and VDDUSB, Settings29
- DSI Display, Backlight and Touch Panel Connector CN430
  - Figure 10. DSI Display Connector CN430
  - Table 15. DSI Display Connector CN430
  - Backlight and OLED Power Supplies Generation32
  - DSI AMOLED Display32
  - Touch Panel32
- USB OTG FS Connector CN933
- ST-LINK/V2-1 USB Micro-B Connector CN1333
- Table 16. USB OTG FS Micro-AB Connector CN933
- Figure 11. USB OTG FS Micro-AB Connector CN933
- Microsd Card Connector CN634
- Table 17. USB Micro-B Connector CN1334
- Figure 12. USB Micro-B Connector CN1334
- Stmod+ Connector CN135
- Table 18. Microsd Connector CN635
- Figure 13. Microsd Connector CN6 (Top View)35
- Table 19. Stmod+ Connector CN136
- Table 20. Quad SPDT Switch Configuration36
- Figure 14. Stmod+ Connector CN136
- PMOD Connector CN337
- Table 21. PMOD Connector CN337
- Figure 15. PMOD Connector CN337
- Camera Module Connector CN238
- Table 22. Camera Module Connector CN238
- Figure 16. Camera Module Connector CN238
- TAG Connector CN839
- SWD Header CN539
- Table 23. TAG Connector CN839
- Figure 17. TAG Connector CN839
- EXT_I2C Connector CN740
- Table 24. SWD Header CN540
- Table 25. EXT_I2C Connector CN740
- Table 26. I2C1 Addresses (on Board)40
- Figure 18. EXT_I2C Connector CN740
- Stereo Headset and Headphone Jack CN1241
- Table 27. Audio Jack Connector CN1241
- Figure 19. Stereo Headset with Microphone Jack CN1241
Appendix A GPIO Assignment and Sharing42
- Table 28. 32L4R9IDISCOVERY GPIO Assignment and Sharing42
- Table 29. MFX_V3 GPIO Assignment (LQFP48)48
Appendix B Solder Bridges50
- Table 30. 32L4R9IDISCOVERY Solder Bridges50
Appendix C Stmod+ GPIO Sharing and Multiplexing52
- Table 31. Stmod+ GPIO Sharing and Multiplexing52
- Table 32. SPDT Quad Switch53
Appendix D Schematics54
- Figure 20. 32L4R9IDISCOVERY Board Interconnections (MB1311C)54
- Figure 21. 32L4R9IDISCOVERY Power54
- Figure 22. 32L4R9IDISCOVERY Arduino uno V3 Connectors54
- Figure 23. 32L4R9IDISCOVERY ST-LINK/V2-154
- Figure 24. 32L4R9IDISCOVERY Octo-SPI Flash Memory54
- Figure 25. 32L4R9IDISCOVERY Peripherals54
- Figure 26. 32L4R9IDISCOVERY USB OTG FS54
- Figure 27. 32L4R9IDISCOVERY Round DSI Display Interface54
- Figure 28. 32L4R9IDISCOVERY IDD Measurement and Multi Function Expander54
Appendix E Fanout Board (MB1280)71
- Mikroelektronika Mikrobus™ Compatible Connector (Fanout CN10 / CN11)71
- Figure 36. Stmod+ Fanout Module Plugged into CN1 Connector71
- ESP-01 Wi-Fi ® Board Compatible Connector72
- Compatible Connectors for the Grove Boards72
Appendix F Federal Communications Commission (FCC) and Industry Canada74
- FCC Compliance Statement74
- IC Compliance Statement74
  - Compliance Statement74
  - Déclaration de Conformité74
Appendix Gcispr3276
- Warning76
- G.1 Warning76
Revision History77
- Table 37. Document Revision History77

STMicroelectronics 32L4R9IDISCOVERY - Page 61

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