anyone know about component function like this or similar??

[bene-tam]

Basically, what i want is some kind of "latching device".

Assumed it has 4 pins.

When a pulse is feed with Pin1 is 5V, Pin2 is 0V, Pin 3 and 4 becomes
internally connected.
When a pulse is feed with Pin1 is 0V, Pin2 is 5V, Pin 3 and 4 becomes
internally disconnected.

For most of the time, Pin1 and Pin2 are 0V.

Thanks so much

Bene Tam

 

[John Popelish]

bene-tam wrote:

Basically, what i want is some kind of "latching device".

Assumed it has 4 pins.

When a pulse is feed with Pin1 is 5V, Pin2 is 0V, Pin 3 and 4 becomes
internally connected.
When a pulse is feed with Pin1 is 0V, Pin2 is 5V, Pin 3 and 4 becomes
internally disconnected.

For most of the time, Pin1 and Pin2 are 0V.

Thanks so much

Bene Tam

I don't understand your "pulse is fed with" terminology. Are you
saying that pin 1 and pin 2 have independent states or is one
dependent on the other? If they are independent, then there are 4
possibilities, and you have described only 3. Can the signal applied
to pin 1 and 2 be both high at the same time? If so, what does this
do to the connection between pins 3 and 4?

I also see nothing involving a latch in your description. You appear
to be talking about something more like a relay or transmission gate.

Take a look at the data sheet for a common transmission gate and then
help me understand if it relates at all to what you are looking for.

http://www1.jaycar.com.au/images_uploaded/CD4066BC.PDF
--
John Popelish

 

[Soeren]

bene-tam@dctechnologies.com (bene-tam) wrote in
news:fe335d4f.0405140208.5cdce725@posting.google.com:

Basically, what i want is some kind of "latching device".

Assumed it has 4 pins.

When a pulse is feed with Pin1 is 5V, Pin2 is 0V, Pin 3 and 4 becomes
internally connected.
When a pulse is feed with Pin1 is 0V, Pin2 is 5V, Pin 3 and 4 becomes
internally disconnected.

For most of the time, Pin1 and Pin2 are 0V.

Sounds like a latching relay (or its electronic equivalent) to me -
first pulse closes the switch, second pulse opens the switch, third
pulse closes the switch again etc.

It could be made with a bistable multivibrator and a relay (or the 4066
JP mentions instead of the relay).


--
Regards,
Soeren

* If it puzzles you dear... Reverse engineer *

 

[Rich Grise]

"John Popelish" <jpopelish@rica.net> wrote in message
news:40A4A13E.10300259@rica.net...

bene-tam wrote:

Basically, what i want is some kind of "latching device".

Assumed it has 4 pins.

When a pulse is feed with Pin1 is 5V, Pin2 is 0V, Pin 3 and 4 becomes
internally connected.
When a pulse is feed with Pin1 is 0V, Pin2 is 5V, Pin 3 and 4 becomes
internally disconnected.

For most of the time, Pin1 and Pin2 are 0V.

Thanks so much

Bene Tam

I don't understand your "pulse is fed with" terminology. Are you
saying that pin 1 and pin 2 have independent states or is one
dependent on the other? If they are independent, then there are 4
possibilities, and you have described only 3. Can the signal applied
to pin 1 and 2 be both high at the same time? If so, what does this
do to the connection between pins 3 and 4?

I also see nothing involving a latch in your description. You appear
to be talking about something more like a relay or transmission gate.

I see a black box with an RS flipflop, whose Q output turns on some
kind of switch between pins 3 & 4. The R and S inputs are active high.

Hey, I got one over on John Popelish?

O Frabjous Day! Callooh! Callay! <chortle>

Cheers!
Rich