Interface and connectivity ICs

SR1 reset controller maximum capacitance on the ~RST output

Dear ST, Do you know amount of is the maximum allowable capacitance on the ~RST output for SR1 reset controller? By tradition we put 0.1 uF on the NRST pin, but is it OK with SR1?We use SR1PBBU with OD output.Thanks in advance!

BlueNRG-M2 minimum distance to body

Hi everyone,I'm currently using the BlueNRG-M2SP Bluetooth 5.0 module for the design of a body-worn wearable medical device (patch which should be used for up to 7 days). I'd like to know if there's any specification regarding the minimum distance of...

About LIS2DH12TR: few sensor not working/Gone bad before use.

Hi,We have assembled 10 Boards with LIS2DH12TR out of which only 6 Boards are working Rest 4 aren't at all working.we tried resoldering the sensor again and checked still the same issue.What would you suggest to do?

Hi, I designed the PCB where used STUSB4500. I encountered a problem: when I plug USB Type-C connector, USB PD adapter disconnects from my PCB. Could you advise what may reason to disconnect USB PD adapter?

For battery management I using BQ25713Power profiles, which I tried is: 20V 1A (PDO3 default) and 20V 3.25 (also PDO3 manually configured on STUSB4500, this profile appropriate to maximum power of my USB PD adapter 65W 20V 3.25A)This problem exists f...

I want to get a solution on RF Power Harvesting for a low power IoT project. if anyone has information please let me know about this.

BLUENRG-M0: number of attributes records

Hello, I'm working with BlueNRG-M0.All is fine when I work with 1 little service. Today I need to implement lot of services and I'm stuck with the error 0x1F from aci_gatt_add_serv() function.My init is this:/*----- CODE -----*/ uint8_t SERVER_BDADDR...

State of I2C interface on STUSB4500L when in dead-battery mode

Hi,I would like to use the STUSB4500L to power a battery powered application as well as talk to it over I2C, however since I'm running low on I2C buses I want to share the I2C bus with it and my other battery management ICs. From reading the datashee...

BlueNRG2 - New project questions

I'm starting a new SW project for a BlueNRG2 module and it's not clear what the currently preferred development toolchain is. I want to make sure I'm not using deprecated tools.The BlueNRG2 will be used as an application processor (i.e. not connected...

Combo STUSB4500 + STUSB4700

Hi, ​I am making a USB power hub which support USB C Power delivery. ​There is a upstream USB C which support Sink and Source role:if there is a DC input, this is a Source, STUSB4700 is enabledif there is no DC input, this is a Sink, STUSB4500 is ena...