"Jim Granville" <no.spam@designtools.co.nz> wrote in message
news:44a2f6d7$1@clear.net.nz...
> Elan Magavi wrote:
>
>> Has anyone made a version of the 87C552 which is flash based with ISP?
>> We have a product that uses this old micro and a designer has moved that
>> portion of the device into a new layout. We would love to be able to use
>> ISP to code it.
>
> That's a good question - Philips have a blind-spot there.
> IIRC, they once did a Flash QFP, but at a high price, as it was intended
> as a prototype vehicle only.
>
> So, there is no pin-compatible alternative, but there are
> a number of functional supersets, depending on how many IO
> you really need, package, and if it needs 5V compatible operation.
>
> Look at these, for ADC, >= 8K, larger pin counts :
> Silabs C8051F4xx : 5V, 32KF, 12 bit ADC/DAC, on chip debug, 50 Mips (but
> less io), older ones with more IO, but not 5V vcc.
> Philips P89LPC952 : 3.3V Vcc only, and 40/42 io, 8KF
> Atmel AT89C51AC3 : 5V / EE / 64KF
> ST uPSD family : 3V/5V models, Tons of code space, ADC
> AD ADuC8xx
>
> -jg
>
Thanks Jim! Unfortunately they've already got the PCB under assembly. Looks
like an ICE is my only option.. been a while since I've needed one. :(
Reply by Jim Granville●June 28, 20062006-06-28
Elan Magavi wrote:
> Has anyone made a version of the 87C552 which is flash based with ISP? We
> have a product that uses this old micro and a designer has moved that
> portion of the device into a new layout. We would love to be able to use ISP
> to code it.
That's a good question - Philips have a blind-spot there.
IIRC, they once did a Flash QFP, but at a high price, as it was intended
as a prototype vehicle only.
So, there is no pin-compatible alternative, but there are
a number of functional supersets, depending on how many IO
you really need, package, and if it needs 5V compatible operation.
Look at these, for ADC, >= 8K, larger pin counts :
Silabs C8051F4xx : 5V, 32KF, 12 bit ADC/DAC, on chip debug, 50 Mips
(but less io), older ones with more IO, but not 5V vcc.
Philips P89LPC952 : 3.3V Vcc only, and 40/42 io, 8KF
Atmel AT89C51AC3 : 5V / EE / 64KF
ST uPSD family : 3V/5V models, Tons of code space, ADC
AD ADuC8xx
-jg
Reply by Elan Magavi●June 28, 20062006-06-28
Has anyone made a version of the 87C552 which is flash based with ISP? We
have a product that uses this old micro and a designer has moved that
portion of the device into a new layout. We would love to be able to use ISP
to code it.
Thanks
Elan