Batboard

I need a spec. sheet/pinout of a Motorola 1820-1413 7-segment display driver IC. 'Net searches come up with nothing. Can anyone here help me out?

That part number is actually an HP/Agilent number.

After searching a few minutes, I found an HP parts cross-reference. 1820-1413 is found to match commercial parts MC14511BCP and CD4511BE. Digikey has the MC part and you can get a PDF spec sheet from their site (google for it). Mouser has the CD part and you can get a PD spec sheet from their site (google for it). These appear to be the same part.

Bob M.

Ahhh, the power of the Batboard!

Thanks, Bob. I searched, but couldn't find anything. HP/Agilent may have the same part, with the same number, but the ICs I have are Motorola. Ever seen an HP/Agilent part with the batwing logo on it? Thanks again!

Well, I'm sure Motorola made some parts and put HP's part number on them. Ever notice non-industry-standard part numbers in Motorola equipment? They'll buy from any manufacturer who can print the part number they want on them.

The MC is Motorola's (now On-Semi) part numbering scheme.

An 8-digit number (two groups of four, first starting with 18) is how HP numbers all their parts. That was a dead giveaway. Just had to find the proper parts list after that.

Bob M.

Very true. It's also possible that Motorola made them for HP, or vice-versa. Do I understand you correctly that ON-Semiconductor is the company that took over Motorola's semiconductor division?

Yup. Moto sold or spun off their semi-conductor business. This may mean that future Moto products won't be limited to using Moto microprocessors.

Bob M.

Yeah, I knew they sold it, I just didn't know who they sold it to.

ON semiconductor existed long before Mot spun off their semi business. When Mot spun it off, it became FREESCALE semiconductor.

/\/\ spun their Analog Devices off to ON Semiconductors and their Digital became Freescale which was bought up on Friday 1, 2006, by a private holding company.

Interesting enough when "King" Christopher Galvin was at the helm, the Wall Street Financial Traders told Chris that the /\/\ Semiconductor Sector was pulling down the overall value of /\/\ stock. When Freescale was turned loose its shares went from roughly $11.00 Per Share to $40.00 Per Share on Friday. And /\/\ is still stuck at $22.00 Per Share at the close of Tuesday's market December 5, 2006!

There's something wrong with this picture!