Identify two chips

[yk]

help to identify 2 chips:
AMD 1820-4621 ----maybe 186?
TOSHIBA VPC-1 -----industry processor?

Thanks!

[Robev]

AMD 1820-4621 looks like HP custom part number for 80286

[yk]

right, it's a HP PN, but I can't find any info about it. 286 copyright is 1982 ;but this one is 1978 ，like 186，so maybe 186 or not？

[Robev]

80186 & 80286 both released in 1982

[Robev]

Found a spreadsheet here with HP equivalent numbers but no equivalent for this 1820-4621 number

http://www.google.co.nz/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&sqi=2&ved=0CC4QFjAD&url=http%3A%2F%2Ff1chf.free.fr%2Fhyper%2FDOC%2520HP%2FHP-Equivalencias.xls&ei=teRGUMScPLGhiAeLt4CwCw&usg=AFQjCNGloLG56y2J6NPk8tXSqc-1RggtrA

[Robev]

Been having a quick look through the above spreadsheet and find it interesting that the HP Part# 1818-0449 is a P4002-1 but no other Part numbers listed for P4004 P4001 etc.

[UMMR]

Hi,
the Toshiba VPC-1 is a highly integrated VLSI single chip processor to be used in industrial programmable controllers and embedded computers. Here is a short description: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=239173&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D239173.
Nice find.
Paolo

[Neon_WA]

The HP part number is not one i found on HP parts store before they dropped all the old numbered parts
I only noted processors/CPUs

http://www.cpu-world.com/forum/viewtopic.php?t=10843

[yk]

Neon_WA, UMMR, Robev : Thanks much.