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Topic: Shift Register that can give me more than 8 pins ? (Read 875 times) previous topic - next topic

firashelou

hello guys,
i need please a shift register that can give me more than 8 pins , maybe about 10 and more and is similar to the 595 ?

and thanks in advance
Aiming for the unreachable !

strykeroz

Hi,

An easy way is to daisy-chain more 595's.  Check this example where two are used to drive 16 outputs (in this case simple LEDs).

Cheers !
Geoff
"There is no problem so bad you can't make it worse"
- retired astronaut Chris Hadfield

firashelou

#2
Jul 18, 2013, 02:09 pm Last Edit: Jul 18, 2013, 02:12 pm by firashelou Reason: 1
yes i know it but it would be better if i get one IC in the circuit to have more space for other components
Aiming for the unreachable !

fungus

There's this: http://www.ti.com/lit/ds/symlink/sn74ls674.pdf

But they're double-wide so it won't save any space and don't ask me where you'd get one for less than about $40.

No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

firashelou


There's this: http://www.ti.com/lit/ds/symlink/sn74ls674.pdf

But they're double-wide so it won't save any space and don't ask me where you'd get one for less than about $40.




aw ok then no for sure i won't buy it !! the 595 cost is 0.5$ !! :D
Aiming for the unreachable !

pwillard

Yup, Mouser.com price: $31.10 and its roughly the equivalent of 2 cascaded 595's

BulletMagnet83

If you want to save space you could always use SMD ones for your final design... those packages aren't very challenging to solder and you can stuff a LOT of them in a small space.

firashelou


If you want to save space you could always use SMD ones for your final design... those packages aren't very challenging to solder and you can stuff a LOT of them in a small space.


i don't know how to work with SMDs and i don't feel i like the SMD !!
Aiming for the unreachable !

MAS3

How about the PCA9555 ?
Has 16 bidirectional pins.
Don't know about availability, but the datasheet mentions through hole pins.
Have a look at "blink without delay".
Did you connect the grounds ?
Je kunt hier ook in het Nederlands terecht: http://arduino.cc/forum/index.php/board,77.0.html

cjdelphi

SMD 595's are the best way for 2 reasons.. 1. cost 2. space


firashelou


SMD 595's are the best way for 2 reasons.. 1. cost 2. space




but it can be used as the normal one ?! i mean like it can't be soldered like you solder the normal IC
Aiming for the unreachable !

pwillard

why not.  I "normally" solder SMD's quite often with my normal soldering iron.  It takes a steady hand and some patience... but it works.

firashelou


why not.  I "normally" solder SMD's quite often with my normal soldering iron.  It takes a steady hand and some patience... but it works.


well maybe someday i'll try it, cz i have an SMD chip but it's very very small, maybe a socket will make it easy
Aiming for the unreachable !

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