GENERAL DESCRIPTION

Zilogs Digital Voice Processor Controller family combines a Z8? microcontroller and a DSP processor on-chip for a cost-effective turnkey system in digital telephone answering devices and other voice processing applications.

FEATURES

■ Part Z8 ROM Z8 RAM* Speed

Number (KBytes) (KBytes) (MHz)

Z89165 24 236 20

Z89166 ROMless 236 20

Z89167 24 236 24

Z89168 ROMless 236 24

Z89169 32 236 24

*General-Purpose

■ Part DSP ROM DSP RAM Speed

Number (Words) (Words) (MHz)

Z89165 6K 512 20

Z89166 6K 512 20

Z89167 8K 512 24

Z89168 8K 512 24

Z89169 8K 512 24

■ 68- and 84-Pin PLCC Packages

■ 4.5- to 5.5-Volt Operating Range

■ Low-Power Consumption (200 mW Typical)

■ 0°C to +70°C Temperature Range

■ 25 Expanded Register Files

■ 47 Input/Output Lines (Z89165)

31 Input/Output Lines (Z89166)

43 Input/Output Lines (Core Processor)

■ Six Vectored, Prioritized Z8 Interrupts with Programmable Polarity

■ Three Vectored, Prioritized DSP Interrupts with Programmable Polarity

■ Two Analog Comparators

■ Two Programmable Z8 8-Bit Counter/Timers, Each with Two 6-Bit Programmable Prescaler

■ Watch-Dog Timer /Power-On Reset

■ On-Chip Oscillator that Accepts a Crystal, Ceramic Resonator, LC, RC, or External Clock Drive

■ RAM and ROM Protect, Low-EMI Option