diac for reseting.

[Harshana]

Hi all,

I have a small cct which has a ATTiny12 uC. currently, I've connected
pin1 (reset) to Vcc. But sometimes there is a resetting problem (I
think this is due to slow rise of Vcc). I thought, if I can have diac
with 4.5v VBO, I can simply connect it between pin 1 and Vcc and have
10k resistor between gnd and pin 1. This way I can be sure that there
is enough Vcc for uC to run when the reset is released. Are there diacs
with VBO around 4.5V ? Is there any other way to do this other than
connecting a RC to pin1 ?

Thanks,
Harshana

 

[Rich Grise]

Hi all,

I have a small cct which has a ATTiny12 uC. currently, I've connected pin1
(reset) to Vcc. But sometimes there is a resetting problem (I think this
is due to slow rise of Vcc). I thought, if I can have diac with 4.5v VBO,
I can simply connect it between pin 1 and Vcc and have 10k resistor
between gnd and pin 1. This way I can be sure that there is enough Vcc for
uC to run when the reset is released. Are there diacs with VBO around 4.5V
? Is there any other way to do this other than connecting a RC to pin1 ?

http://www.google.com/search?hl=en&q=reset+generator+IC

Have Fun!
Rich