GENERAL DESCRIPTION

ZiLOG’s Z8® MCU single-chip family now includes the Z86C34/C35/C36/C44/C45/C46 product line, featuring enhanced wake-up circuitry, programmable Watch-Dog Timers (WDT), and low-noise/EMI options. Each of the new enhancements to the Z8 offer a more efficient, cost-effective design and provide the user with increased design flexibility over the standard Z8 microcontroller core. The low-power consumption CMOS microcontroller offers fast execution, efficient use of memory, sophisticated interrupts, input/output bit manipulation capabilities, and easy hardware/software system expansion.

FEATURES

• 28-Pin DIP, 28-Pin SOIC and PLCC Packages (C34,

C35, C36)

• 40-Pin DIP, 44-Pin PLCC and QFP Packages (C44,

C45, C46)

• 3.0- to 5.5-Volt Operating Range

• Clock Free Watch-Dog Timer (WDT) Reset

• Operating Temperature Ranges:

Standard: 0 °C to 70 °C

Extended: –40 °C to +105 °C

• Expanded Register File (ERF)

• Full-Duplex UART (ASCI)

• Dedicated 16-Bit Baud Rate Generator

• 32 Input/Output Lines (C44/C45/C46)

24 Input/Output Lines (C34/C35/C36)

• Vectored, Prioritized Interrupts with Programmable Polarity

• Two Analog Comparators

• Two Programmable 8-Bit Counter/Timers, Each with

Two 6-Bit Programmable Prescaler

• Watch-Dog Timer (WDT)/Power-On Reset (POR)

• On-Chip Oscillator that Accepts a Crystal, Ceramic Resonator,

LC, RC, or External Clock

• RAM and ROM Protect

• Optional 32-kHz Oscillator