Tfk U267

electroaudio · 26th July 2004, 04:26 PM

Does anyone recognze this 8dil IC?

I want to replace it with some other more modern bargraphdriver but i dont know how the 267works.

Anyone have any old datasheets or an old catalogue where the pins are marked? Please...

gmphadte · 28th July 2004, 06:18 AM

Use LM3915...
This is in no way a replacement part, but you can assemble a ckt from this and make the LEDs work. This will need little struggling, and wiring

Best of Luck.
_____________________________
Gajanan

electroaudio · 28th July 2004, 12:33 PM

Thanks, but..
I need the pinouts for TFK U267 otherwise i cant replace them.

This is what i am repairing..

gmphadte · 29th July 2004, 04:54 AM

The TFK U267 was made in the eighties and the IC Master lists it in the group 'Bargraph LED' and you say there are 8 pins. You can easily trace the pins.
Desoder and remove the ic and find its supply pins.
That eliminates two pins.
If the IC drives 5 LEDs, then finding the input pin should not be a problem.

_______----------______------__--------__--__--_-_--__--
Gajanan

gmphadte · 29th July 2004, 05:26 AM

The part is available at
www.mushroom.co.uk/uu.htm

______----___---__--_--_-_------____________
gajanan

26th July 2004, 04:26 PM	#1
electroaudio diyAudio Member Join Date: Mar 2004 Location: stockholm	Tfk U267 Does anyone recognze this 8dil IC? I want to replace it with some other more modern bargraphdriver but i dont know how the 267works. Anyone have any old datasheets or an old catalogue where the pins are marked? Please...

28th July 2004, 06:18 AM	#2
gmphadte diyAudio Member Join Date: Jul 2003 Location: Dona paula, Goa	Bargraph display Use LM3915... This is in no way a replacement part, but you can assemble a ckt from this and make the LEDs work. This will need little struggling, and wiring Best of Luck. _____________________________ Gajanan

29th July 2004, 04:54 AM	#4
gmphadte diyAudio Member Join Date: Jul 2003 Location: Dona paula, Goa	Bargraph display The TFK U267 was made in the eighties and the IC Master lists it in the group 'Bargraph LED' and you say there are 8 pins. You can easily trace the pins. Desoder and remove the ic and find its supply pins. That eliminates two pins. If the IC drives 5 LEDs, then finding the input pin should not be a problem. _______----------______------__--------__--__--_-_--__-- Gajanan

29th July 2004, 05:26 AM	#5
gmphadte diyAudio Member Join Date: Jul 2003 Location: Dona paula, Goa	U267 availability The part is available at www.mushroom.co.uk/uu.htm ______----___---__--_--_-_------____________ gajanan

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28th July 2004, 12:33 PM	#3
electroaudio diyAudio Member Join Date: Mar 2004 Location: stockholm	Thanks, but.. I need the pinouts for TFK U267 otherwise i cant replace them. This is what i am repairing..

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