Goldstar CMOS GLC555

[Gerhard v d Berg]

I can get hold of GLC555 devices at a good price.
The Golstar GLC555 is an obsolete part and I can not find
any documents/specifications on these chips.

I am worried that they might not be 'standard' 555
devices (there have been a number of subtle differences
between the 555 devices by the various manufacturers).

Can someone provide me with more info or a datasheet
or a datasheet reference.

Many Thanks

Gerhard
[email protected]
For the correct e-mail address, reverse all the caracters after the @

 

[Winfield Hill]

Gerhard v d Berg wrote...

I can get hold of GLC555 devices at a good price.
The Golstar GLC555 is an obsolete part and I can
not find any documents/specifications on these chips.

I am worried that they might not be 'standard' 555
devices (there have been a number of subtle differences
between the 555 devices by the various manufacturers).

Can someone provide me with more info or a datasheet
or a datasheet reference.

For the correct e-mail address, reverse all the caracters
after the @

I have a copy of the GLC555 datasheet and if I understood
your email address, I'd be happy to send you a copy. :>)

But you'd be better off looking at the Intersil ICM7555
datasheet anyway, because that's what the GLC555 emulates,
and Intersil's original data sheet has more useful detail.
http://www.intersil.com/products/deviceinfo.asp?pn=ICM7555

As for differences between the 555 devices by the various
manufacturers, my understanding is most of the bipolar 555s
are reasonable performance copies of each other. However,
the ICM7555 is just one example of the various CMOS design
555s you can find. Others are TS555, TLC555, LMC555, etc.,
These CMOS designs are all quite different one from another,
and they are also different from the original bipolar part.

In most ways the CMOS parts are better: lower power drain,
faster speed, very high input impedance, little or no power-
supply current glitch, rail-to-rail output switng, etc., etc.

But most have dramatic differences from the bipolar parts,
notably in lower output-current-driving capability. So yes,
use the CMOS parts, but "Read the data sheets carefully!"

Thanks,
- Win

whill_at_picovolt-dot-com

 

[Gerhard v d Berg]

Gerhard v d Berg wrote... snipped

I have a copy of the GLC555 datasheet and if I understood
your email address, I'd be happy to send you a copy. :>)

But you'd be better off looking at the Intersil ICM7555
datasheet anyway, because that's what the GLC555 emulates,
and Intersil's original data sheet has more useful detail.
http://www.intersil.com/products/deviceinfo.asp?pn=ICM7555

As for differences between the 555 devices by the various
manufacturers, my understanding is most of the bipolar 555s
are reasonable performance copies of each other. However,
the ICM7555 is just one example of the various CMOS design
555s you can find. Others are TS555, TLC555, LMC555, etc.,
These CMOS designs are all quite different one from another,
and they are also different from the original bipolar part.

In most ways the CMOS parts are better: lower power drain,
faster speed, very high input impedance, little or no power-
supply current glitch, rail-to-rail output switng, etc., etc.

But most have dramatic differences from the bipolar parts,
notably in lower output-current-driving capability. So yes,
use the CMOS parts, but "Read the data sheets carefully!"

Thanks,
- Win

whill_at_picovolt-dot-com

Many thanks for all the info - offer accepted and much appreciated.
Also for the info that it is an 'emmulation' of the ICM 7555.

Gerhard van den Berg

 

[Winfield Hill]

Gerhard van den Berg wrote...

Winfield wrote ...

Many thanks for all the info - offer accepted and much
appreciated. Also for the info that it is an 'emmulation'
of the ICM 7555.

Gerhard, if you email me your correct email address, I can
send you the datasheet. Sorry I can't otherwise decipher
your distorted published address.

Thanks,
- Win

whill_at_picovolt-dot-com

 

[Clifford Heath]

Gerhard, if you email me your correct email address

It looks character-reversed, meaning it's @csir.co.za

 

[Gerhard v d Berg]

It looks character-reversed, meaning it's @csir.co.za

You got it !!!
I hope spammers have the same difficulty in decoding my address
as ng patrons .
Why this scheme .. I probably did too many bit reverses (for FFTs) .

Gerhard van den Berg

 

[Winfield Hill]

Gerhard v d Berg wrote...

Clifford Heath wrote ...

You got it !!!

I tried that but didn't recognize .za, is it New Zealand?
Hmm, I see Cliff would be your neighbor in Australia. :>)

Thanks,
- Win

whill_at_picovolt-dot-com

 

[Don Pearce]

Gerhard v d Berg wrote...

I tried that but didn't recognize .za, is it New Zealand?
Hmm, I see Cliff would be your neighbor in Australia. :>)

Thanks,
- Win

whill_at_picovolt-dot-com

za is South Africa - slightly more distant neighbour.

d

_____________________________

http://www.pearce.uk.com