Freescale Semiconductor is providing embedded developers with a cost-effective 8-bit microcontroller (MCU) to help expand their automotive design possibilities. As automotive applications continue to become smaller, more sophisticated and more cost-sensitive, designers require a broader range of affordable, feature-rich MCU options. To address this need, Freescale has introduced the S08QD MCU family – the company’s first 8-bit small outline integrated circuit (SOIC) devices designed to reduce board space, system cost and power consumption for entry-level automotive applications.
The S08QD family provides exceptional flexibility and functionality to help developers design a wider array of automotive applications. The S08QD’s high level of integration and 5V support within a compact, 8-pin package make it ideal for cost-sensitive applications that require higher voltages. In-vehicle applications include HVAC dampeners, mirror dimming, actuators, sensors/meters, watchdogs, push button control and other entry-level, general-purpose automotive applications.
The S08QD MCU family integrates a four-channel, 10-bit analog-to-digital controller (ADC) designed for higher resolution, faster conversion and an automatic compare function. The ADC enables the MCU to easily interface with analog inputs from devices such as sensors by converting the analog signal to a digital value. The automatic-compare functionality allows the MCU to compute values and perform comparisons to a preset threshold.
The S08QD also includes an internal clock source (ICS) module containing a frequency-locked loop (FLL) controlled by an internal or external reference. The internal reference clock can eliminate the cost of all external clock components, which helps reduce board space and enhances system reliability.
“We continue to broaden Freescale’s automotive MCU portfolio by offering an array of price/performance options,” said Ray Cornyn, director of Freescale’s Automotive Microcontroller Operation. “The S08QD family provides more functionality at the 4 KB flash level and greater flexibility for designing entry-level automotive applications at attractive price points in today’s competitive market.”
The S08QD family offers a robust support environment and pin-compatible migration path within Freescale’s 8-bit automotive MCU portfolio. The S08QD is pin-compatible with the SG and EL MCU families. Shared peripherals and a common set of development tools help make it quick and easy for engineers to leverage their design investments.
S08QD family features
- 16 MHz HCS08 central processing unit
- HC08 instruction set with added background (BGND) instruction
- Up to 4 KB flash memory
- Up to 256B RAM
- Flash read/program/erase over full operating voltage and temperature
- 4-channel, 10-bit ADC
- Dual 16-bit on-chip timers
- Internal clock oscillator
- Single-wire background debug interface
- 8-pin narrow body SOIC packaging
Speeding system development
To help customers speed and simplify development, Freescale offers a complimentary Special Edition of its CodeWarrior(R) Development Studio optimized for S08 core MCUs, such as the S08QD family. CodeWarrior Development Studio is included with the DEMO9S08QD4 demo board and also is available for download online at no charge. Going well beyond basic code generation and debugging, the software can help designers help streamline application design from the moment they open the box. It features an intuitive, state-of-the-art project manager and build system; a highly optimized compiler; a graphical, source-level debugger; integrated profiling capabilities; a full chip simulator, and more.
Pricing and availability
S08QD family devices are available now in production quantities, and the suggested resale pricing begins at 74 cents in 10,000-unit quantities. Development kits for the S08QD family include the DEMO9S08QD4 demonstration board, available now for the suggested resale price of $59. The kits also include a complimentary Special Edition version of CodeWarrior Development Studio for Microcontrollers v6.0, which supports both the QD4 and QD2 families with comprehensive development capabilities. The Standard Edition of CodeWarrior v6.0 is available for a resale price of $2394. The Professional Edition is available for $4794 resale. (All prices USD.)
About Freescale Semiconductor
Freescale Semiconductor is a global leader in the design and manufacture of embedded semiconductors for the automotive, consumer, industrial, networking and wireless markets. The privately held company is based in Austin, Texas, and has design, research and development, manufacturing or sales operations in more than 30 countries. Freescale is one of the world’s largest semiconductor companies with 2006 sales of $6.4 billion (USD).
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