GENERAL DESCRIPTION
The Z380™ Microprocessor is an integrated high-performance microprocessor with fast and efficient throughput and increased memory addressing capabilities. The Z380™ offers a continuing growth path for present Z80-or Z180-based designs, while maintaining Z80® CPU and Z180® MPU object-code compatibility. The Z380™ MPU enhancements include an improved 280 CPU, expanded 4-Gbyte space and flexible bus interface timing.
   
FEATURES
■ Static CMOS Design with Low-Power Standby Mode
    Option
■ 32-Bit Internal Data Paths and ALU
■ Operating Frequency
    - DC-to-18 MHz at 5V
    - DC-to-10 MHz at 3.3V
■ Enhanced Instruction Set that Maintains Object-Code
    Compatibility with Z80® and Z180™ Microprocessors
■ 16-Bit (64K) or 32-Bit (4G) Linear Address Space
■ 16-Bit Data Bus with Dynamic Sizing
■ Two-Clock Cycle Instruction Execution Minimum
■ Four Banks of On-Chip Register Files
■ Enhanced Interrupt Capabilities, Including
    16-Bit Vector
■ Undefined Opcode Trap for Z380™ Instruction Set
■ On-Chip I/O Functions:
    - Six-Memory Chip Selects with Programmable Waits
    - Programmable I/O Waits
    - DRAM Refresh Controller
■ 100-Pin QFP Package