Hi, I have create one adjustable multi vibrator circuit using 555 timer IC my aim is to achieve two things 1.Basically 555 timer IC output is Rectangular wave my aim is achieve ontime of one pulse 0-10us(Micro seconds) time delay 2.Another one is one...
Hi, When I connect a digital radio via the USB cable, Device Manager should show under USB: STM Device in DFU mode. However, it doesn't. Instead, I have an Other Devices: Digital Radio in USB mode, with a yellow triangle with black exclamation point....
Hi all and good time can U help me please?i'm confused about this part with the (UM smd code),i searched a lot on google and but i found only 2 parts with this smd code... (zener diode and tvs diode) !!my first find --> zener diode Bzx84j-C5V6 SOD-32...
Hi,I'm designing a PCB that can get 8 digital inputs and 4 analog inputs. But these inputs can be range from 3.3v to 24v. For the digital inputs I have used universal logic shifter method using comparator where I can give any voltage range of digital...
I'm looking to add a serial EEPROM to a product, and have a somewhat odd situation. The device will loose power spontaneously and often (few times an hour). My question is: What happens if the M24C01-R looses power during a write operation? I assume...
Hello community,i have trouble to identify a defect power semiconductor from ST.The package is TO-220 and is marked with "GF309VW" and the ST-Logo. Can anyone identfiy the device?Thanks in advance!
Hi,The datasheet of the M95M04-DR 4-Mbit serial SPI bus EEPROM (https://www.st.com/en/memories/m95m04-dr.html) mentions on page 24 the device is implementing "Error correction code (ECC x 4)".What is the method to be impelennted on the microcontrolle...
HiI using STM6601, but my device only has only one button. I want to get a reset with a long press, but the datasheet says that the SR input cannot be connected to ground all time.Perhaps there is another way to reset?
I have the following questions and need help:1. Can this transistor be used at a frequency of 900kHz? Can it only be used in frequency bands above 1MHz?2. The data sheet provides a test circuit under 30MHz conditions. We do not fully understand the f...
Hello,I'm having some problems with the M95M01 EEPROM.Firstly, I had a problem where after the writing the data to the EEPROM was not consistent with the read made afterward. I could narrow down the problem to be related to the way that I'm monitorin...