I have this small 8 bit MCU that needs to drive the gates of 10 triacs so my first solution was to use the Allegro A6811 serial in parallel out 12 bit source driver. BUT Allegro no longer makes such a device. Does anyone in the world still make DIP IC versions of this kind of device? This project must contain all DIP type IC's but I suppose a PLCC package would suffice if I have to.

Any suggestions?

 

Without more detail about how you plan to use the A6811. Can you post a data sheet?

If you can get the surface mount package, why not use it?

 

Would a shift register work for you? Or two.

You can string together shift registers. Typically they are 8 bits per chip and you can daisy chain two of them, given 16 outputs, serial-in, parallel out.

Sage

 

A shift register would not work as it just shifts bits in "bucket" format. I need a true serial in parallel out IC where I can load a serial pattern of on and off bits, latch them into the output buffers and when ready strobe the output buffers to change from their previous state and display the new data on the outputs.

 

I found a 8 bit version that will work. The Micrel MIC5891, I'll just use two.