Latch Circiut

[Paul Taylor]

Hi all I need a latch circuit that will start up in 0 on its o/p I have tried the basic nor and nand types these all give me a 1 on start, has any one got a good circuits.

Thanks

 

[Spehro Pefhany]

On Tue, 3 May 2005 15:31:10 +0100, the renowned "Paul Taylor"
<paul.taylor@uea.ac.uk> wrote:

Hi all I need a latch circuit that will start up in 0 on its o/p I have tried the basic nor and nand types these all give me a 1 on start, has any one got a good circuits.

Thanks

You need to add a reset circuit to whatever kind of latch you want to
make.



Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

 

[John Fields]

On Tue, 3 May 2005 15:31:10 +0100, "Paul Taylor"
<paul.taylor@uea.ac.uk> wrote:

Hi all I need a latch circuit that will start up in 0 on its o/p I have tried the basic nor and nand types these all give me a 1 on start, has any one got a good circuits.

___
SET>-------A
Y-----+------------>OUT
+--B | Vcc
| NAND | |
| | [R]
| A---+ |
+----Y B-----------+
C---+ |
_____ NAND | [C]
RESET>---------------+ |
GND



--
John Fields
Professional Circuit Designer