Z86E0408PSC1903

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Introduction

The Z86E0408PSC1903, introduced by Zilog inc., is a low-end 8-bit Microcontroller (MCU) based on the Z380 architecture. It belongs to the Z380 family of microcontrollers, designed to serve the embedded-systems market with a series of hybrid products. It comes packed with a 8-bit 8051 microprocessor module and a host of peripherals. This MCU is an ideal choice for applications requiring an embedded-system processor: its low cost, useful peripheral set and well-defined behavior make it an attractive choice in many cases.

Application Field

The Z86E0408PSC1903 MCU is suitable for low-end 8-bit microcontroller applications where the key requirements are cost and basic functionality. Such applications include digital control systems, security systems, monitoring systems, industrial automation shop-floor controllers, and home-automation systems. The low cost and great flexibility of this MCU make it well-suited for use in embedded systems for low-end automation, measurement, and control applications.

Moreover, this MCU can be used in communication applications as its 8051 microprocessor module provides a dedicated serial port for synchronous or asynchronous data transfer. Moreover, it is configured with support for both synchronous and asynchronous serial communication protocols, so it can easily handle a variety of communications needs. This makes the Z86E0408PSC1903 a good choice for communication applications requiring reliable data rate operation.

Finally, this MCU offers customers a great opportunity to explore new possibilities in mobile device markets due to its low power consumption and ultra-low-power operation. It allows users to leverage its embedded-systems capabilities to extend the device\'s battery life and help design high-performance mobile applications.

Working Principle

The Z86E0408PSC1903 works on the well-known Z380 8051 architecture with the Z280 core. This architecture makes use of a Harvard architecture approach, wherein program memory and data memory are on different buses. The instruction set consists of single-cycle instructions for efficient program execution, both for speed and lower power consumption. The Z86E0408PSC1903 supports up to 64k bytes of code memory and 512 bytes of RAM.

Furthermore, the Z86E0408PSC1903 features a 32k byte secondary address space for storing and accessing data that requires frequent changing, such as variables and stack information. This secondary address space is accessible through two extra bus ports, allowing the effective simultaneous access to 33k bytes of memory and 512 bytes of RAM.

To enable complete control of all functions, the Z86E0408PSC1903 provides two programmable general-purpose I/O (GPIO) ports, two 16-bit timer/counters, a 16-bit watchdog timer, and a variety of communication interfaces. For example, these include enhanced UARTs, SPI, I2C, USB 2.0, IrDA, and CAN. The MCU also features an integrated 8-bit Analog-to-Digital (ADC) converter for integrating analog devices.

Finally, the Z86E0408PSC1903 is powered by an optional on-board voltage regulator, which allows it to provide a stable 3.3V operating voltage while keeping power consumption low. This low power consumption and the high integration of the Z86E0408PSC1903 makes it an ideal fit for battery-powered applications.

Conclusion

The Z86E0408PSC1903 is a low-cost 8-bit microcontroller, based on the Z380 8051 architecture. Its features, such as its low power consumption, integrated 8-bit ADC, and dedicated communication interfaces, make it a good choice for cost-sensitive embedded-system applications. Additionally, its secondary address space allows for the simultaneous access to 33k bytes of memory and 512 bytes of RAM, enabling powerful control and integration of multiple low-end devices.

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