Resolved! TDA7243
Greetings.I'm trying to repair an old car audio system and need to replace this TDA7243. But I can't find a spare part or the datasheet to find one. Does anyone know what TDA I can use to replace it? Thanks.
Others: hardware and software
Discuss hardware and software design challenges, including NOR flash storage, OTA updates, component ID, and thermal management.
Forum Posts
ST M41T01 RTC
Hello Forum members,I am using ST M41T01 RTC in one of my products. I observed a strange behavior when I remove the coin cell and other power to the RTC. I configured the RTC for today's time, say 10 Jun 2025 and kept it running for an hour. It was w...
M48T86PC1 Replacement
I have a dead M48T86PC1 CMOS battery for my industrial computer and seeking out a direct replacement as this is obsolete (from what i've searched) . Can you help provide the direct replacement?
Resolved! ECMF02-4CMX8 operating temperature
Hello, My system is required to operate at -40C.The datasheet states that low range ambient temperature is -30C, while the junction temperature is -40C.Can you please explain the discrepancy between the two? Under what conditions can the junction tem...
Resolved! identify this component ?
Good morning sir Have a nice day Pls identify the components name .I don't identify the components name . I m trying to various type of search tools to identify the components. Check Multimeter probe negative and Postive side show value in 239.This...
Disable External Watchdog during microcontroller programming
Hi Team.We are facing some challenge with external watchdog timer with STM32F373VCT6 controller. when there is no program in flash input to external watch dog timer (WDI) is output and no pulse . during this time external watch dog timer continuously...
fail of MasterGan4
I find the wavefrom of SW terminal(the connection of the bridge) is wrong. The frequency is consistent with the input signal but the Amplitude is 3V3. But there's no 3V3 power supply. It should have been the VIN I offer. And it's exactly a square wav...
Resolved! Mini STM32F103C8T6 CH340
Hi,I'm new to stm32 mcu. I got this Mini STM32F103C8T6 CH340 board from Alipexpress (https://fr.aliexpress.com/item/1005006910706030.html)Thanks to the embedded CH340 uart, I thought I should be able to program it directly from the Arduino IDE. But I...
Resolved! Requesting the COO details of PN: ECMF2-40A100M6Y, ECMF2-40A100M6Y
Hi,we need mentioned below part COO details.PN: ECMF2-40A100M6Y, ECMF2-40A100M6YThanks,Arunkumar B
Resolved! TSZ121 as a differential inpup stage
Hi everyone, i am using the TSZ121 as a high to low impedance match stage in order to drive a differential MCU (MSP430i20x). The input stage seen below comprises several mosfet optocouplers (see C1-C5) that shape the input attenuation. C1-C5 is simpl...
