S9S12G128AVLF

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Introduction

The S9S12G128AVLF is a series of 8-bit microcontrollers (MCUs) designed and manufactured by Freescale Semiconductor, Inc. It is designed to provide cost effective solutions for a broad range of embedded system applications. These MCUs are well-suited for use in a variety of automotive, industrial, home appliance, and electronic equipment applications. This MCU series provides a wide range of functionality, including advanced analog and digital peripherals, communication interfaces, and high-speed memory.

Application Fields

The S9S12G128AVLF is used in a wide variety of applications. Its built-in features make it suitable for use in automotive, industrial, appliance, and electronic equipment. This microcontroller contains high performance and low power consumption features that make it attractive for its use in applications such as engine control systems, fuel injection systems, transmission controllers, powertrain control systems, vehicle immobilizers, body control systems, pedestrian protection systems, sensors, switches, and encoders. It also finds applications in radio, television, and other audio-visual equipment, home appliances, vending machines, medical devices, and office equipment.

Features

The S9S12G128AVLF offers a wide range of features, including an 8-bit CPU core with internal ROM, RAM, EEPROM, and Flash memory. It includes an on-chip 10-bit Analog-to-Digital Converter (ADC) and Digital-to-Analog Converter (DAC) port, as well as a variety of communication interfaces, including three Universal Serial Bus (USB) ports, two Serial Peripheral Interfaces (SPI), and I2C interface. In addition to these on chip peripherals, the MCU can be equipped with optional cores, such as CAN, LIN, and Ethernet. It also offers advanced system protection features, including 32/128-bit Interrupts, Security and Wall Clock, Fault Management Unit (FMU), and Sleep Mode.

Working Principle

The S9S12G128AVLF is a versatile multi-function microcontroller that is designed to support a wide range of applications. Its architecture consists of an 8-bit CPU core, an 8-bit core, and an 8-bit data bus. The CPU core handles the program instructions and processes data. Its on-chip peripherals handle communication and analog/digital conversion tasks. Its various I/O ports allow for the connection of external devices.

The MCU’s on-chip memory consists of Rom (64Kb), RAM (7.5Kb), EEPROM (4Kb), and Flash (128Kb). The EEPROM and Flash memories are used for storing programs, data, and other information. The data bus allows the MCU to access memory and peripheral devices. The 150 MHz system clock, generated by an on-chip oscillator, as well as the program counter and other internal registers, allow the MCU to run instructions and read data. To control the execution of instructions and data transfer, instructions are fetched from memory and stored in an internal instruction register. Data is transferred between the registers and external devices through the bus.

Summary

The S9S12G128AVLF 8-bit microcontroller is a cost-effective solution that offers a wide range of features, including an 8-bit CPU core, high-speed memory, communication interfaces, analog-to-digital conversion, and advanced system protection features. These features make it suitable for use in a variety of automotive, industrial, appliance, and electronic equipment applications. The MCU’s architecture consists of an 8-bit CPU core, an 8-bit core, and an 8-bit data bus, as well as on-chip memory and peripheral devices. Its 150 MHz system clock, generated by an on-chip oscillator, ensures that instructions are fetched and data is transferred efficiently.

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