Hi David,
Working on an explanation with Design. Can you please message me on my email t-townsend@ti.com? Since this is the public forum?
Regards,
Tyler
Part Number: TCA8418 Hi team,
My customer designs this device, but They have one question.
They would like to know our devices' behave after POR condition without I2C access?
What status of ROWx and COLx pins?
Are they scanning automatically?
Or…
Part Number: TCA8418 Hello,
I am looking at ordering membranes with a screen pirinted gird pattern of conductive silver ink to help against ESD. This would connect with Pin1 of my membrane which goes directly to ROW4 of the TCA8418RTWR. Is this okay or…
Other Parts Discussed in Thread: TCA8418
Part Number: TCA8418
The datasheet states:
1. TCA8418 has internal pull-ups so no external pull-up resistors are necessary
2. Add external pull-up resistors to any unused rows & columns.
So, why do I need…
Part Number: TCA8418 I used TCA8418 in my custom product and connected 75 keys as matrix.
I used IC in polling mode. Read every 1msec to detect key.
At power on, all key detection is proper.
But after fast pressing or random pressing, at some moment there…
Part Number: TCA8418
Hi,
From the datasheet, it seems the INT and RESET pins can be pull high to 3.6V even the chip is powered from 1.8V supply. Anyone can confirm it? And if the chip can survival when INT and RESET are pulled up to supply which comes…
Part Number: AM3358 Other Parts Discussed in Thread: TCA8418
Hello,
We are using TCA8418 Keypad driver and trying to interface with Begalbone black using I2C interface(I2C1).
Enabled driver in kernel, kernel version is 5.4 and below is the DTS configuration…
Part Number: TCA8418 Hello,
We use the TCA8418 as keyboard switcher, when we pressed and relased the key fastly, the chip locked, INT pin was High and we restar the board, it recovery.
This phonemon never occur before we product in another production line…
Part Number: TCA8418 Hi,
The current problem is that the key is not interrupted.
GPIO pins that are not used according to datasheet requirements need external pull-up resistor, but due to hardware error,
There is no pull-up resistor. Can I use a built…
Part Number: TCA8418
Hi, I am designed a custom PCB and I am facing a very small issue related to program if someone can help me with it. It is Arduino Code. I know it is out of your jurisdiction but I think someone can help me with it because I also…