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Z8420B1 from ZILOG

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Z8420B1

Manufacturer: ZILOG

Z80 PIO PARALLEL INPUT/OUTPUT CONTROLLER
Partnumber Manufacturer Quantity Availability
Z8420B1 ZILOG 29 In Stock

Description and Introduction

Z80 PIO PARALLEL INPUT/OUTPUT CONTROLLER The part **Z8420B1** is manufactured by **Zilog**.  

### **Specifications:**  
- **Type**: 8-bit microprocessor  
- **Architecture**: Z80 family  
- **Clock Speed**: Up to 6 MHz  
- **Data Bus Width**: 8-bit  
- **Address Bus Width**: 16-bit  
- **Instruction Set**: Z80 compatible  
- **Operating Voltage**: 5V  
- **Package**: 40-pin DIP (Dual In-line Package)  

### **Descriptions:**  
The **Z8420B1** is a member of Zilog's Z80 microprocessor family, designed for embedded and general-purpose computing applications. It is fully compatible with the Z80 instruction set and supports a wide range of peripherals.  

### **Features:**  
- **Enhanced Z80 Core**: Improved execution speed and efficiency  
- **On-Chip Memory Interface**: Simplifies system design  
- **Wide Operating Temperature Range**: Suitable for industrial applications  
- **Low Power Consumption**: Optimized for energy efficiency  
- **Extensive Peripheral Support**: Compatible with Z80-based I/O devices  

This information is based on Zilog's official documentation for the Z8420B1.

Application Scenarios & Design Considerations

Z80 PIO PARALLEL INPUT/OUTPUT CONTROLLER

Alternative Part Number

  • Z84C2010PEG --: Z84C20 series Z80 PIO with the same 40-pin DIP pinout and function, rated for 10 MHz and available in a Pb-free package.
  • Z84C2006PEG --: Same Z84C20 PIO family in a 40-pin DIP, 6 MHz version that is a direct functional replacement when the higher clock rate is not required.
  • Z8420APS --: Original Z8420 NMOS PIO variant in a 40-pin DIP, matching the original architecture and pinout for legacy designs.

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