DocID029189 Rev 2
9/16
UM2047
X-NUCLEO-53L0A1 expansion board
16
3.2.2
List of materials
Table 5. List of materials
Components
Value
Reference
Supplier
Comments
VL53L0X application
C1, C3
100nF
X5R
Supply voltage decoupling
C2
4.7µF
X5R - 6.3V
Supply voltage decoupling
R1
47k
Interrupt output pull-up
R2
47k
Reset input pull-up
R66, R67
4.7k
SDA and SCL line pull-up at 2.8V
S1
VL53L0X
ST
Ranging and gesture recognition
device
VL53L0X Satellite board interfaces
R20
47k
Left satellite board interrupt
output pull-up
R21
47k
Left satellite board reset input
pull-up
R22
47k
Right satellite board reset input
pull-up
R23
47k
Right satellite board interrupt
output pull-up
2.8V regulator application
C8
10µF
X5R - 6.3V
Output voltage decoupling
C9
10µF
X5R - 6.3V
Input voltage decoupling
R35
49.9k
Feedback resistor bridge to set
the output voltage to 2.8V
R43
20k
U20
LD39050PUR
ST
Output programmable regulator
Level translator application
C4, C6, C11
100nF
2.8V decoupling capacitor
C5, C7, C13
100nF
3.3V decoupling capacitor
C12
1µF
X5R - 6.3V
R68, R69
4.7k
SDA and SCL line pull-up at 3.3V
U3, U9
TXS0108PWR
TI
For all signals except I2C
interface
U24
ST2329AQTR
ST
For I2C interface
Add-on feature
C10
100nF
Supply decoupling capacitor
R45
4.7k
Push-button pull-up
R46
1k
Output pull-up