High Performance with the Coolest Possibilities—MC9S08QD MCU for Automotive and Industrial
The MC9S08QD (QD) microcontrollers expand the low-end capabilities of Freescale 8-bit portfolio for automotive and industrial markets. They offer enhanced functionality and flexibility while maintaining pin compatibility with the KA2, EL/SG, and QG8 families.
The QD2 and QD4 MCUs incorporate a high-performance 4-channel, 10-bit analog-to-digital converter (ADC), which makes them an ideal solution for industrial applications such as DC cooling fans, low power supplies and telecommunications equipment, and automotive applications such as mirror dimming and actuators. The QD is also well suited for:
Digital capacitive discharge ignition systems for motorbikes and motorcycles
Sensors and meters
HVAC dampeners
Push-button control
Watchdogs
Portable air coolers
Small appliances
Large appliances
Camera zoom control
Chargers
Treadmills
Vacuum cleaners
The QD S08 controllers are at the lowest end of the Freescale portfolio, but still offer more flash memory and RAM than other 8-bit microcontrollers in the same price range. QD boasts two 16-bit on-chip timers, one 2-channel timer and another one-channel timer. Each channel can be used for input capture, output compare, buffered edge-aligned pulse-width modulator (PWM) or buffered center-aligned PWM.
MC9S08QD4 and MC9S08QD2 Features
16 MHz HCS08 central processing unit
HC08 instruction set with added background (BGND) instruction
4 or 2KB flash
256 B 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 with 2 percent deviation over temperature and voltage
Single-wire background debug interface
On-chip in-circuit emulation with real-time bus capture
8-pin PDIP and 8-pin narrow body SOIC packaging
The QD microcontrollers are a cost-effective, highly integrated solution with 2.7–5.5V power consumption for cost-conscious applications that require economical performance in a small 8-pin footprint. Order samples and development tools today directly from Freescale:
