GENERAL DESCRIPTION

The Z89323/373/393 DSP family of products builds on Zilogs first generation Z893XX DSP core, integrating several peripherals especially well suited for cost-effective voice, telephony, and control applications.

FEATURES

■ Operating Temperature Ranges:

0°C to +70°C (Standard)

–40°C to +85°C (Extended)

■ 4.5- to 5.5-Volt Operating Range

DSP Core

■ 20 MIPS @ 20 MHz, 16-Bit Fixed Point DSP

■ 50 ns Instruction Cycle Time

■ Single-Cycle Multiply and ALU Operations

■ Two Internal Data Buses and Address Generators

■ Six Register Address Pointers

■ Optimized Instruction Set (30 Instructions)

On-Board Peripherals

■ 4-Channel, 8-Bit Analog to Digital Converter (A/D)

■ On-Board Serial Peripheral Interface (SPI)

■ Up to 40 Bits of Programmable I/O

■ Two Channels of Programmable

Pulse Width Modulators (PWM)

■ Three General-Purpose Timer/Counters

■ Two Watch-Dog Timers (WDT)

■ Programmable PLL

■ Three Vectored Interrupts Servicing Eight

Interrupt Sources

■ Power-Down and Power-On Reset