STMicroelectronics X-NUCLEO-53L1A2, Руководство пользователя

Страница: 10 / 18

3.3 List of materials
Table 5. List of materials
Components Value Reference Supplier Comments
VL53L1 application
C1, C3 100 nF X5R
Supply voltage decoupling
C2 4.7 µF X5R - 6.3 V
R1 47 k Interrupt output pull up
R2 47 k Reset input pull up
R66, R67 4.7 k SDA and SCL line pull up at 2.8 V
S1 VL53L1 ST ToF ranging sensor
VL53L1 breakout board interfaces
R20 47 k
Left breakout board interrupt output
pull up
R21 47 k
Left breakout board reset input pull
up
R22 47 k
Right breakout board reset input pull
up
R23 47 k
Right breakout board interrupt
output pull up
2.8 V regulator application
C8 10 µF X5R - 6.3 V Output voltage decoupling
C9 10 µF X5R - 6.3 V Input voltage decoupling
R35 49.9 k
Feedback resistor bridge to set the
output voltage to 2.8 V
R43 20 k
U20 LD39050PUR ST Output programmable regulator
Level translator application
C4, C6, C11 100 nF 2.8 V decoupling capacitor
C5, C7, C13 100 nF
3.3 V decoupling capacitor
C12 1 µF X5R - 6.3V
R68, R69 4.7 k SDA and SCL line pull up at 3.3 V
U3, U9 TXS0108PWR TI For all signals except I2C interface
U24 ST2329AQTR ST For I2C interface
Add-on feature
C10 100 nF Supply decoupling capacitor
R45 4.7 k Push button pull up
R46 1 k Output pull up
R60 Delay time setting (def = 10 ms)
PB1 Push button
U22 TPS3838K33 TI Supervisory circuit
GPIO expander
C14, C15 100 nF Supply decoupling capacitor
UM2759
List of materials
UM2759 - Rev 2
page 10/18