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