| View previous topic :: View next topic |
| Author |
Message |
OrBit
Joined: 28 Feb 2005
Posts: 245
Location: P.R.C
|
 Posted: Thu Oct 31, 2019 2:38 am Post subject: First clone X86 CPU of China |
 |
|
In 1994, China Northeast Microelectronics Institute completed the first x86 processor: L80C86-2, with a clock frequency of 5MHz, and a quality level of SJ33I military standard of China. At the same time, it completed the research and development of 10 supporting circuits, including l82C37a programmable DMA controller and L82C52 serial control interface. , l82C53-2 / l82C54 programmable interval timer, lC82C55A programmable external interface, L82C59A programmable priority interrupt controller, L82C86H 8-bit bus transceiver, L82C87H 8-bit bus transceiver (reverse phase), LC82C88 bus controller and L82C89 bus arbiter, the operating temperature range of the matching chip is required to reach - 55c-125c:, the functional parameters are up to the level of similar products , and can be used interchangeably.
I have got some brand-new LC8086-2 processors recently, they all work well by testing. 
_________________
Webmaster of China Collector's Site
WWW.CPU-CN.COM/EN
My collections:
www.cpu-cn.com/EN/Collectors1.asp?userid=Henry
Last edited by OrBit on Thu Oct 31, 2019 2:55 am; edited 2 times in total |
|
| Back to top |
|
 |
cvandijk
Joined: 21 Jul 2016
Posts: 3589
Location: Netherlands
|
| Posted: Thu Oct 31, 2019 2:42 am Post subject: |
|
|
| They look nice, very cool CPUs |
|
| Back to top |
|
|
xi11west
Joined: 07 Mar 2005
Posts: 1526
Location: Houston, TX
|
| Posted: Thu Oct 31, 2019 7:45 am Post subject: |
|
|
| Nice find. |
|
| Back to top |
|
|
popo
Joined: 18 Feb 2004
Posts: 520
Location: Formosa
|
|
| Back to top |
|
|
misace
Joined: 14 Sep 2012
Posts: 932
Location: Prague, Czechia
|
| Posted: Thu Oct 31, 2019 8:25 am Post subject: |
|
|
beatiful 
_________________
Looking For Chips 386 J38605DX, Symphony FPU, Rise Tiger, MP6-II, Winchip 3&4, IDT C6-Early Logo, Nx686, Tesla 8088, L80C86, Bulgarian 8088, Pentium 4 QT69ES. |
|
| Back to top |
|
|
yk
Joined: 17 Oct 2011
Posts: 539
Location: CN
|
| Posted: Thu Oct 31, 2019 2:27 pm Post subject: |
|
|
| Another type of print |
|
| Back to top |
|
|
CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
|
|
| Back to top |
|
|
OrBit
Joined: 28 Feb 2005
Posts: 245
Location: P.R.C
|
| Posted: Thu Oct 31, 2019 8:15 pm Post subject: |
|
|
| yk wrote: | | Another type of print |
L80C86 made by ShenYang Northeast Microelectronics Institute(沈阳东北微电子所), launched in 1994.
LC80C86 made by School of computer science and technology, Harbin University of Technology(哈尔滨工业大学计算机科学与技术学院) launched in 1997 or 98.
Both are compatible products of Intel 80C86, but the packaging is obviously different.but I don't rule out some kind of technical cooperation between them
_________________
Webmaster of China Collector's Site
WWW.CPU-CN.COM/EN
My collections:
www.cpu-cn.com/EN/Collectors1.asp?userid=Henry |
|
| Back to top |
|
|
black_monolith
Joined: 18 Mar 2007
Posts: 248
Location: Shandong, China
|
| Posted: Mon Nov 11, 2019 9:48 pm Post subject: |
|
|
| Wait...this is a 5MHz chip? The -2 doesn't mean 8MHz? Don't tell me the C stands for "China" and not CMOS. |
|
| Back to top |
|
|
yy2013
Joined: 12 Sep 2009
Posts: 739
Location: Nagoya, Japan
|
| Posted: Tue Nov 12, 2019 6:10 am Post subject: |
|
|
| Both L80C86-2 and LC80C86-2 are extremely nice! |
|
| Back to top |
|
|
OrBit
Joined: 28 Feb 2005
Posts: 245
Location: P.R.C
|
|
| Back to top |
|
|
|
![[ Hidden ]](https://cdn.cpu-world.com/forum/templates/CPUWorld/images/lang_english/icon_email.gif "[ Hidden ]"){kind=icon}
