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