Ken said - (not on list)

> If you were "brave" you could always try Holtek - but 
> anyone still making
> processors with a hardware-limited stack depth should be 
> taken outside and
> given a vigorous beating.

Mayhaps.
BUT after that, if they were still willing to sell them at 
no more than half the alternative then one may consider 
them.

At $US0.39 in 500 quantity the 9RS08 suggests that 100,000 
pricing may be very competitive.

I have the data sheet open now :-).

Comparator, timer, interupts.
Wakeup from stop on external or timer.
6800 subsubset

6 I/O in 8PDIP or 8SOIC
4 I/O in DFN
Actually 4+1+1 and 2+1+1 respectively

April 2006 1st release so maybe half debugged.
(Moore's law says half the remaining bugs are gone every 18 
months, no ...?)

Flash
160 C/W on 1 layer board
1.8-5.5 V OPERATING
RAM retention 0.8V Credible if not PIC sized I/O current.

Run 10 MHz 6.5 mA max
1.25 MHz 1.5 mA max

Idd STOP
    5V    2uA 25C, 5 uA 85C
    3V    same
    1.8V    2/4

Bandgap add 30 uA max
RTI add 500 nA at 1 kHz internal clk
    add 165 uA they say at 32 kHz but prob nA ???

Trimmed clock deviation 0.2% at fixed V, T and 2% over 
temperature and V .

Bandgap is an annoying but typical 1.2V.
Why they don't divide this by eg 4 or offer the option to do 
so I don't know.
Many applications would use this as an external current 
sense and 1.2V is too high almost anywhere.
You can passively increase the ref but not decrease it.

A good start though.



        Russell

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