Part Number: TCA8418 Tool/software: Hi team,
With the reset pin set to “H”, the output goes High when the power is turned on. I have an LED connected to 13-pin COL4 and it lights up momentarily. It turns off when the register setting by I2C…
Part Number: TCA8418 Tool/software: Hi
We are using TCA8418 as GPIO and interrupt expander.
One of the interrupt is active low input to GPI. It is possible this signal gets asserted (pulled low) before interrupt is enabled.
From logic analyzer, we can…
Part Number: TCA8418 Tool/software: Dear Sir/Mam
Give the Grade details (automotive/industrial/commercial), End of Life, FIT rate with respect to CL=95% , temp=55 deg C.
Part Number: TCA8418 Tool/software: Hello,
We have some carbon touch detection problems on a product.
I think it's more caused by the Keyboard definition than the TCA8418.
I try to understand how TCA8418 works.
Datasheet shows that a pull-up of 105K…
Part Number: TCA8418E Tool/software: Hi all,
My question is any drawback or problem if i use the 1KR added between TCA8418E ( Key Scan IC ) and the Key.
Those 1KR was used the prevent the ESD.
Any drawback of it ? We just add 1KR column & the Key ( attached…
Part Number: TCA8418 Tool/software: Hi team,
I understand that the pull-up resistor can be disabled by a register. However, when used in key-badged mode, there is a statement in the datasheet "8.4.2.1" that the columns are disabled but the rows are not…
Part Number: TCA8418 Tool/software: I am using Adafruit_TCA8418 library .
My configuration is as follows:
Adafruit_TCA8418 keypad;
void setup()
{
keypad.matrix(5, 10);
keypad.flush();
}
And my code which prints to the serial any key press or…
Part Number: TCA8418 Hi team,
I am trying to implement this device with the attached circuit using an external pull-up. The internal pull-up will be turned off with a register. Is there any problem?
Also, am I correct in thinking that in keyscan mode…
Part Number: TCA8418 The data sheet for TCA8418RTWR shows the "thermal pad" under the part but there is no mention if this pad must be a no-connect, or if it can be grounded. The examples do not show the connection at all.
The WQFN24 footprint…
