Re: 8051 derivative 2nd sources
- From: Jim Granville <no.spam@xxxxxxxxxxxxxxxxx>
- Date: Tue, 14 Feb 2006 07:45:15 +1300
george_d wrote:
I'm starting a new project and I intend to use an 8051 derivative.
Specifically, I'm looking for a chip that has at least 3MIPS, 64K
FLASH, an SPI port, and must be RoHS compliant.
The real reason that I'm posting is that I want to use a chip(s) that
are truly second sourced. We intend to produce this product for maybe
10 years or so, so we don't want to have to be concerned about having
a chip manufacture stopping production.
For example, I know that the Philips's P89V51RD2 is second sourced by
SST's SST89E516RD2. Atmel makes an AT89C51RD2, but the SPI signals
are pined out differently then the first two chips. But this is the
only second sourced chip that I can find with the above mentioned
requirements. I was wondering is anyone knows of other 8051 type chips
that are second sourced.
The SPI is a relatively new extension to the RD2 family.
You can consider the AT89C51ED2 an 'almost' second source for
AT89C51RD2 - the ED2 is the EEPROM version.
For other suppliers of 44 Pin RD2[PCA+MoreRam] Cores,
which I think is what you are asking,look at :
Winbond,
STC (China), STC89LE516RD+, STC89LE516AD
Maxim?,
maybe Syncmos
maybe CoreRiver
Ramtron have some std C51's, that may include RD2,
Philips also have a new 89V664 being released.
-jg
.
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