ST STM32 Nucleo Manuel utilisateur

Introduction

The X-NUCLEO-SAFEA1 expansion board is based on the STSAFE-A110 secure element. It can be used with any STM32

Nucleo development board.

The on-board STSAFE-A110 is customized with a standard profile for evaluation and is compatible with the Arduino UNO R3

connector.

The X-NUCLEO-SAFEA1 expansion board is used with free X-CUBE-SAFEA1 or X-CUBE-SBSFU software packages

containing sample code to demonstrate how to implement security applications.

Figure 1. X-NUCLEO-SAFEA1 expansion board

How to use STM32 Nucleo expansion board based on the STSAFE-A110 secure

element

UM2670

User manual

UM2670 - Rev 1 - January 2020

For further information contact your local STMicroelectronics sales office.

www.st.com

1Getting started

1.1 Hardware requirements

The X-NUCLEO-SAFEA1 expansion board can be connected to any STM32 Nucleo development board through

the matching Arduino UNO R3 connector pins.

Note: Handle the X-NUCLEO-SAFEA1 with care and avoid bending or damaging the pins as the board has male/

female pass-through connectors and ESD sensitive components.

RELATED LINKS

STM32 ODE compatible software can be downloaded freely from the STSAFE-A110 product web folder in the Tools &

Software section

UM2670

STM32L4 series microcontroller software

UM2670 - Rev 1 page 4/14

4Schematic diagrams

Figure 2. X-NUCLEO-SAFEA1 circuit schematic - STSAFE-A chips

4GND

SCL 7

IC4

GND

3NC

3V3

NC 6

3V3

1RST

VCC

RESET-C2

3V3

100nF/25V

STSAFE-A110 UFDFPN8 3x2

IC1

SDA 5

GND

SDA 5

SCL

IC2

GND

STSAFE-A110 SO8N

2VCC

3NC

2VCC

SDA

RESET-C1

SDA

STSAFE-A110 UFDFPN8 3x2

SCL

RESET-C1

GND

RST

NC 6

RST 8

SCL

SCL 2VCC

SCL

NC 8

SCL

RESET-C2

SDA

RST 8

IC3

1NC

NC 6

GND

SDA

STSAFE-A110 SO8N

SCL 7

NC 8

3V3

4GND

GND

NC 6

SDA 5

UM2670 - Rev 1 page 5/14

UM2670

Schematic diagrams

Figure 3. X-NUCLEO-SAFEA1 circuit schematic - Arduino and morpho connectors

morpho connector

CN10

CN9

PA9

GND

21 22

CN6

3V3

Arduino connector

Header 19x2

3 5

GND

21 22

SPI_CLK

29 30

23 24

35 36

PC0

PC1

CN5

SPI_MOSI

SPI_MISO

SPI_NSS 16 6

Header 19x2

CN8

CN7

PA10

E5V

PA11

PA12

PH1

PH0

morpho connector

SDA

SCL

CN5-6

35 36

1817

23 24

Arduino connector

Arduino connector Arduino connector

UM2670 - Rev 1 page 6/14

UM2670

Schematic diagrams

Figure 4. X-NUCLEO-SAFEA1 circuit schematic - LEDs and jumpers

2K2

1KR

PC0

(CN8-Pin 6)

LD3

SDA

3V3

RST1

SDA

SCL pull-up

SCL

61.9R

Amber LED

RESET-C1

SDA pull-up

GND

3V3

CN5-6

3V33V3

SPI_MOSI

SB5

Sel SCL Sel SDA

pull-up

RST1 CMD

pull-up

SPI_MISO

SPI_CLK

SPI_NSS

820R

3V3

User Led

Header 5X2 male

GND

SCL

(CN5-Pin 9)

SB13

LD1

2K2

(CN5-Pin 10)

Green LED

SB2

SB1

UM2670 - Rev 1 page 7/14

UM2670

Schematic diagrams

5Bill of materials

Table 2. X-NUCLEO-SAFEA1 bill of materials

Item Q.ty Reference Part/Value Description Manufacturer Order code

1 1 C2

0.1 µF 0603 [1608

Metric] 25 V ± 10 %

SMD X7R

Multilayer ceramic

capacitor Multicomp MC0603B104K250CT

2 0 C3 0.1 µF 0603 [1608

Metric] 25 V ± 10 %

Multilayer ceramic

capacitor (not

mounted)

Multicomp MC0603B104K250CT

3 0 C4, C5

22 pF 0603 [1608

Metric] 50 V ± 5%

C0G/NP0

Multilayer ceramic

capacitors (not

mounted)

Multicomp MC0603N220J500CT

4 1 CN5

Vertical, 2.54 mm,

10 contacts,

receptacle, ESQ

series, through hole

Board-to-board

connector SAMTEC ESQ-110-24-T-S

5 1 CN6

Vertical, 2.54 mm, 8

contacts,

receptacle, ESQ

series, through hole

Board-to-board

connector SAMTEC ESQ-108-24-T-S

6 0 CN7

Vertical, 2.54 mm,

38 contacts,

receptacle, ESQ

series, through hole

Board-to-board

connector (not

mounted)

SAMTEC ESQ-119-14-G-D

7 1 CN8

Vertical, 2.54 mm, 6

contacts,

receptacle, ESQ

series, through hole

Board-to-board

connector SAMTEC ESQ-106-24-T-S

8 1 CN9

Vertical, 2.54 mm, 8

contacts,

receptacle, ESQ

series, through hole

Board-to-board

connector SAMTEC ESQ-108-24-T-S

9 0 CN10

Vertical, 2.54 mm,

38 contacts,

receptacle, ESQ

series, through hole

Board-to-board

connector (not

mounted)

SAMTEC ESQ-119-14-G-D

10 1 IC1 STSAFE-A110

SO8N

Authentication and

brand protection

secure solution

ST STSAFA110S8SPL02

11 0 IC2 STSAFE-A110

SO8N

Authentication and

brand protection

secure solution (not

mounted)

ST STSAFA110S8SPL02

12 0 IC3, IC4 STSAFE-A110

DFN23

Authentication and

brand protection

secure solution (not

mounted)

ST STSAFA110DFSPL02

13 1 LD1 SM0805AC, 6MCD,

607 Amber LED Bivar Inc. SM0805AC

14 0 LD2 SM0805AC, 6MCD,

607

Amber LED (not

mounted) Bivar Inc. SM0805AC

15 1 LD3 1.8 V 2 mA 570 nm Green LED OSRAM LGT67K-H2K1-24-Z

UM2670

Bill of materials

UM2670 - Rev 1 page 8/14

Item Q.ty Reference Part/Value Description Manufacturer Order code

16 0 J1

Receptacle, 5

ways, surface

mount, right angle

USB connector,

shielded, Micro

USB Type B, USB

2.0 (not mounted)

MOLEX 47346-0001

17 1 J2

2.54 mm, 10

contacts, header,

303 Series, through

hole, 2 rows

Wire-to-board

connector 3M 30310-6002HB

18 1 P7, P8 473, 80 way, 2 row,

straight pin header Connector Stelvio Kontek 613080262822

19 1 R1

61.9 ohm 0603

[1608 Metric] 75 V

100 mW

Thick film resistor MULTICOMP MCWR06X61R9FTL

20 0 R2

680 ohm 0603

[1608 Metric] 50 V

100 mW

Thick film resistor

(not mounted) MULTICOMP MCWR06X6800FTL

21 4 R3, R4, R7, R8

2.2 kohm 0603

[1608 Metric] 50 V

100 mW SMD

Chip resistors MULTICOMP MCWR06X2201FTL

22 1 R5 1 kohms 0603

[1608 Metric] ±1% Resistor MULTICOMP MCMR06X1001FTL

23 0 R6 1 kohms 0603

[1608 Metric] ±1%

Resistor (not

mounted) MULTICOMP MCMR06X1001FTL

24 3 SB1, SB2, SB13

0 ohm 0603 [1608

Metric] 75 V 100

Chip resistor Vishay CRCW06030000Z0EA

25 0 SB3, SB10,

SB11, SB12

0 ohm 0603 [1608

Metric] 75 V 100

Chip resistor (not

mounted) Vishay CRCW06030000Z0EA

26 0 X1

8 MHz, through

hole, 11.5 mm x 5

mm, 10 ppm, 18 pF,

10 ppm, 9B Series

9B-8.000MEEJ-B -

Crystal, TXC Corp. 9B-8.000MEEJ-B

UM2670

Bill of materials

UM2670 - Rev 1 page 9/14

Revision history

Table 3. Document revision history

Date Version Changes

14-Jan-2020 1 Initial release.

UM2670

UM2670 - Rev 1 page 10/14

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