The HCS12 V Core is a bit processing core using the 68HC12 instruction set architecture (ISA). This makes the Core instruction set. Product Features. ○ Long-distance wireless transmission (1,m in open space /baud rate 5,bps in the air). ○ Working frequency range (MHz. View or download datasheets, user guides, specifications and block diagrams for the Freescale 9S12/HCS12 microcontroller, the processor used by the PDQ.

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Our three- or five-year service programs for hardware and systems provide the coverage you need while ensuring lowest total cost of ownership over the life of your system: Our three- datssheet five-year service programs for hardware and systems provide the coverage you need while ensuring lowest total cost of ownership over the life of your ycs12. The specified maximum instantaneous current is 25 mA into or out of any one pin at a time.

The Module Mapping Control Guide shows you how to use the control registers for the HCS12 Microcontroller and how to configure the device’s memory map. That is, for currents of less than 10 mA the voltage change is linear with current; it can be modeled as a voltage source of either zero or five volts and an equivalent series resistance of 40 ohms 1.

The maximum current you should ever source from the pin is 25 ma. Learn recommended techniques to reduce development time and improve application performance and scalability Leverage more than 40 training courses taught by NI and industry experts Attend training in a variety of formats, including online, virtual, and classroom settings To find training courses for your hardware, visit ni.

Digital I/O – Hardware Interfacing

NI equips engineers and scientists with systems that accelerate productivity, innovation, and discovery. If there is the possibility of the output pin being driven to a negative voltage level it is better to prevent excessive power dissipation in the processor package by externally clamping the voltage to ground V SS with a Schottky diode.


Overview of the MC9S12A microcontroller. When the input voltage rises from a logic 0 toward a logic 1 level, the logic 1 is recognized when the voltage rises to 2. Learn more about our privacy policy. As the user manual for its Enhanced Capture Time module provides some specifications that were neglected in the manual for the MC9S12DP version, it is provided here.

HCS12 Datasheet(PDF) – Motorola, Inc

datasneet The following diagram shows the measured threshold for a single pin. Datasehet voltages are prevented by ensuring that voltages of less than a diode drop below V SS that is, Most datasheets listed on this page may be downloaded as a single dagasheet.

This manual describes the features and operation of the core central processing unit, or CPU, and development support functions used in all HCS12 microcontrollers. The following graphs show that the resistance of an output pin in either the high or low state is approximately 40 ohms for currents to the maximum of 25 mA. Nevertheless, any circuitry connected to the processor should take care to:. This page is about: The consequence of this hysteresis is that the threshold between a logic high and a logic low depends on whether the input voltage is rising or falling.

To find training courses for your hardware, visit ni. Pre-coded C-language routines make it easy to access these features.

Freescale HCS12 9S12 Datasheets

What should the resistor value be? But please be careful — whenever these outputs are connected to external devices you must stay within the voltage and current capabilities of the output pins.

Index to all documents, tutorials, and user guides. Negative going noise on the input voltage will not cause a false transition back to a logic 0 unless it is greater than 0.

This site uses cookies to offer you a better browsing experience. The detailed specifications provide the timing information you may sometimes need when writing c language application programs.


The following graphs show that in reduced drive mode the resistance of an output pin is approximately ohms in either the high or low state. We calculate it as, Eqn.

Prevent excessive voltage levels at the pin; and. View Pricing and Purchasing Information. You may either source current to the LED, or sink current from it, as shown in the following circuit. They consist of internal diodes that conduct current from the input pin to the supply or ground rails in the event that the input pin voltage exceeds the supply range.

Even so, as a service to those looking for descriptions of the protocol, the datasheets are provided here: At NI, we produce high-performance hardware and are committed to helping you maintain that performance for years to come. To access NI technical support services for your hardware, visit ni.

Connecting Hardware to the 9S12 Processor. The trigger voltage can lie anywhere within the 1. Using this Doc Web.

Get up and running faster with system assembly and configuration services Operate on a fixed budget with prepaid repair and calibration services Maintain peak performance with a discounted calibration plan Simply call us to schedule your service—no budget approval needed To learn more about service programs for hardware and systems, see ni.

Using this Doc Web. To learn more about service programs for hardware and systems, see ni. Full drive mode is recommended for most applications. Device Overview and Block Diagram. Load circuitry that requires significant current to be sourced or sunk by the digital output should include external resistors to ensure that the absolute maximum rating of 25 mA per output pin is never exceeded.