On Fri, 14 Dec 2007 19:40:25 -0800
"James Newton" <jamesnewton@massmind.org> wrote:

> The Z8 has about the same power as a PIC 16C54... roughly...

I wouldn't discard the Z8 completely... Read these specs, which aren't
exactly C54-like:

    * eZ8 CPU 20 MHz
    * Up to 8 KB Flash memory
    * Up to 256 B register RAM
    * 100 B non-volatile data storage (NVDS)
    * Single-pin, On-Chip Debugger (OCD)
    * Up to 23 I/O pins depending upon package
    * 20 MHz Internal precision oscillator (IPO)
    * External crystal oscillator
    * Watch-Dog Timer (WDT) with dedicated internal RC oscillator
    * Two enhanced 16-bit timers with capture, compare, and PWM capability
    * Fast 8-channel, 2.8=B5s 10-bit Analog to Digital Converter (ADC)
    * Up to 17 interrupt sources
    * On-chip analog comparator
    * Power-on reset (POR)
    * Voltage Brownout protection (VBO)
    * 2.7 V to 3.6 V operating voltage
    * Up to thirteen 5 V tolerant input pins
    * 20-pin and 28-pin packages
    * 0 =B0C to +70 =B0C standard temperature and -40 =B0C to +105 =B0C ext=
ended
temperatureoperating ranges

The new microcontrollers provides the fundamental features required for
universal motor and electric fans control. Enhancement of Z8F083A Series
including a 2.5 times faster internal precision oscillator and 5 times
faster ADC over competing products in its class. The new microcontroller
series offers a single-pin OCD (On-Chip Debugger) port for in-system
programming and debugging. =


John

-- =

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