GENERAL DESCRIPTION

The Z86318 is a member of the Z8? MCU family of CMOS microcontrollers. This device offers on-board pull-up and pull-down resistors (ROM mask-option programmable on a nibble basis), a scalable trip-point buffer to accommodate opto-transistor outputs, and high drive ports capable of up to 20 mA current sinking per pin (3 pins maximum).

FEATURES

■ –40°C to +105°C Operating Temperature Range

■ Low-Power Consumption: 33 mW (Typical)

■ ROM Mask Options:

– Permanent Watch-Dog Timer

– ROM Protect

– Low-Voltage Protection

– Pull-Up/Pull-Down I/O Pins

(Nibble Programmable)

– Feedback Resistor on the On-Chip Oscillator

■ On-Chip Oscillator (Crystal, Ceramic Resonator,

LC, or External Clock Drive)

■ Fast Instruction Pointer: 1.5 μs @ 4 MHz

■ ESD Protection Circuitry