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Z89321 Datasheet(PDF) 1 Page - Zilog, Inc. |
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Z89321 Datasheet(HTML) 1 Page - Zilog, Inc. |
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1 / 40 page  DS97DSP0100 P R E L I M I N A R Y 1 1 PRELIMINARY PRODUCT SPECIFICATION Z89321/371/391 1 16-BIT DIGITAL SIGNAL PROCESSORS FEATURES s 0 °C to +70°C Standard Temperature Range -40 °C to +85°C Extended Temperature Range s 4.5- to 5.5-Volt Operating Range DSP Core s 24 MIPS @ 24 MHz Maximum, 16-Bit Fixed Point DSP s 41.7 ns Minimum Instruction Cycle Time s Six-Level Hardware Stack s Six Register Address Pointers s Optimized Instruction Set (30 Instructions) On-Board Peripherals s Dual 8/16-Bit CODEC Interface Capable of up to 10 Mbps s m-Law Compression Option (Decompression is Performed in Software) s 16-Bit I/O Bus (Tri-Stated) s Three I/O Address Pins (Latched Outputs) s Wait-State Generator s Three Vectored Interrupts s 13-Bit General-Purpose Timer GENERAL DESCRIPTION The Z893XX products are high-performance Digital Signal Processors (DSPs) with a modified Harvard-type architec- ture featuring separate program and data memory. The de- sign has been optimized for processing power while mini- mizing silicon space. The single-cycle instruction execution and bus structure promotes efficient algorithm execution, while the six regis- ter pointers provide circular buffering capabilities and dual operand fetching. Three vectored interrupts are complemented by a six-level stack, and the CODEC interface allows high-speed trans- fer rates to accommodate digital audio and voice data. A dedicated Counter/Timer provides the necessary timing signals for the CODEC interface, and an additional 13-bit timer is available for general-purpose use. Device DSP ROM (KW) OTP (KW) DSP RAM Lines MIPS (Max) Z89321 4 512 24 Z89371 4 512 16 Z89391 64* 512 24 Note: *External Device 40-Pin DIP 44-Pin PLCC 44-Pin QFP 84-Pin PLCC Z89321 X X X Z89371 X X X Z89391 X Note: *General-Purpose |
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