[sdiy] 7-segment LED displays with 4511 driver chip - max current?

Ullrich Peter Peter.Ullrich at kapsch.net
Mon Aug 10 10:49:10 CEST 2015


Hi Rick!

For prototyping you could use SMD adapters like these:
http://www.ebay.com/itm/2-units-SOIC24-SOIC-24-SSOP24-SSOP-24-Adapter-PCB-SMD-Convert-DIP-/161768213109?hash=item25aa230a75

Ciao
Peter

Von: Rick Jansen [mailto:rick.jansen at xs4all.nl]
Gesendet: Montag, 10. August 2015 10:24
An: Ullrich Peter
Cc: rsdio at audiobanshee.com; Synth-Diy List
Betreff: Re: [sdiy] 7-segment LED displays with 4511 driver chip - max current?

Thanks! 8575 is great too, and as a 16-bit chip preferred, even, but not available in oldfashioned DIP format, only the lowprofile miniature... There's always something :-)

rick

On 10 Aug 2015, at 10:02, Ullrich Peter <Peter.Ullrich at kapsch.net<mailto:Peter.Ullrich at kapsch.net>> wrote:
And if you use other I2C controllers you can have up to 28 IOs in one chip. (push-pull possible, but interrupts on input for only a few lines) http://www.maximintegrated.com/en/products/interface/controllers-expanders/MAX7300.html

There is also a SPI version available with similar IOs
http://www.maximintegrated.com/datasheet/index.mvp/id/3371/part/MAX7301

But on the negative side you are single sourced with these parts.

For standard parts there are also 16 bit version widely available: PCF8575
http://www.ti.com/lit/ds/symlink/pcf8575.pdf

Ciao
Peter

http://www.ullrich.at.tt





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