FLASH Replacement for 87C552?

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

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

"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. :(