GENERAL DESCRIPTION

The Z89462 is a high-performance Digital Signal Processor (DSP) optimized for processing and transferring data. This enhanced processor provides an upward migration path for its Z89C00/Z89321 predecessors.

FEATURES

■ 100-Pin QFP and 124-Pin PGA Packages

■ 0°C to +70°C Temperature Range

■ 3.3- to 5.0-Volt Operating Range 40 MHz Operation @ 5.0V 20 MHz Operation @ 3.3V

■ Six RAM Pointers for 4K-Word RAM Banks

■ Three Maskable Vectored Interrupts, Edge or Level Trigger Selectable

■ Enhanced Instruction Set

■ Single-Cycle Instruction Execution

■ Four-Stage Pipeline

On-Board Peripherals

■ Dual 8/16-Bit CODEC Interface

■ Wait-State Generator

■ Two 16-Bit Timer/Counters

■ Dynamic Program Bus Sizing