The Z84C4104PEC is a Z80-based Peripheral Control Unit (PCU) manufactured by Zilog. It is designed to provide enhanced peripheral control capabilities for Z80 microprocessor-based systems. This PCU integrates several common peripheral functions into a single chip, reducing component count and simplifying system design.

Applications:

• Embedded systems based on the Z80 microprocessor
• Industrial control systems
• Data acquisition systems
• Communication interfaces
• Legacy computer systems

Features:

• Z80 CPU compatible
• Four independent DMA channels
• Programmable interrupt controller
• Four 8-bit timers/counters
• UART with programmable baud rate generator
• Parallel I/O ports
• Direct memory access (DMA) capabilities
• Programmable wait state generator
• 5V power supply operation

Benefits:

• Integrated peripheral control: Combines multiple peripheral functions into a single chip, reducing component count and board space.
• Enhanced system performance: DMA capabilities allow for high-speed data transfer between peripherals and memory without CPU intervention.
• Simplified system design: Reduces the complexity of designing Z80-based systems.
• Flexibility: Programmable timers, interrupt controller, and UART provide flexibility in configuring the PCU for different applications.
• Cost-effective: Integrates several functions into one chip resulting in a cost saving.

Additional Details:

The Z84C4104PEC operates with a 5V power supply. The UART supports asynchronous communication with programmable baud rates. The DMA channels can be programmed to transfer data between memory and peripherals without CPU intervention, improving system performance. The programmable interrupt controller allows for flexible interrupt handling. This PCU is typically packaged in a DIP package.