8-bit Microcontrollers
8-bit Microcontrollers
HC08 QC Family
Fact Sheet
Overview
Cost-Effective LIN Family
Features
Second-Generation Flash or Cost-Effective ROM Memory Options
Freescale’s general market QC family of
small-package, 8-bit microcontrollers is based
on the popular HC08 core. The QC family
members have strong analog capabilities, a
complete set of serial modules and robust
memory options. The QC family is fully local
interconnect network (LIN) 2.0 and J2602
compliant and can function as LIN slaves
for applications that require a cost-effective
hardware solution.
Benefits
• Embedded, fully automotive-qualified
flash available
• Range of memory from 4 KB to 16 KB
• Qualified for high temperatures, shock,
vibration and humidity
• Cost-reduction path for high-volume,
stable programs
• 10K write/erase cycles at -40°C to +125°C
• Ultra-fast programming: 64 bytes in 2 ms
• Reduced production costs through ultra-fast
programming at operating voltage
• Flash block protection
• Helps protect code from unauthorized reading
and to guard against unintentional writing/
erasing of user-programmable segments of code
• Flash reprogrammable in circuit
Internal Clock Oscillator
• Allows real-time flash updates
• 1 MHz, 2 MHz and 3.2 MHz nominal
bus frequencies
• Fully trimmable internal oscillator
• Less than 0.4 percent oscillator accuracy
within a LIN frame
• Eliminates the cost for external
clock components
• Reduces board space
• Eliminates or reduces EMI generated from
external clocks
• Allows option of external RC and external crystal
A variety of small packages (16-, 20- and
28-pin), combined with optimized peripheral
sets and a powerful HC08 CPU, make this an
attractive low-end controller family for a wide
range of applications.
Enhanced SCI—LIN Controller
• Full-duplex operation
• Simultaneous transmission and reception of data
• Programmable 8-bit or 9-bit character length
• Programmable baud rates
• Separately enabled transmitter and receiver
• Interrupt-driven operation with eight
interrupt flags
• Finely adjustable baud rate prescalers allow
precise control of baud rate
• ESCI arbiter allows measurement of LIN
synchronization data without separate
timer hardware
Typical Applications
One of the QC family’s primary features,
ideal for the automotive industry is LIN,
a UART-based, single-master, multiple-slave
networking architecture. With up to 16 KB
of flash memory, high-pin-count packages
and an additional timer with three-phase
motion control, the QC is also a cost-effective
solution for low-end consumer and industrial
applications.
• Enhanced detection of LIN break symbols to
prevent false interrupts
• Capable of communication rates up to
115,000 bps, encompassing all LIN baud rates
Periodic Wake-Up Module
• Selectable timeout periods (40 µs to
three minutes)
• Dedicated low-power, 32 kHz internal oscillator
separate from the main system clock sources
• Accessible in all modes of operation (run,
wait and stop)
• Flexibility to exit from low-power stop mode
without external signals
• Provides simultaneous transmission and
reception of data
• Full-duplex operation
Application
Segments
Specific Application Examples
Sensor, light sensor, light control,
sun roof
Roof
Steering
wheel
Cruise control, wiper, turning signal,
climate control, radio
4-ch.
+
2-ch.
16 MHz CPU, 3.3
OSC 16, 20, 28 COP, LVI, to
POR, KBI
LIN/J2602,
Watchdog,
5.0 General Market
Up to 10-ch.,
10-bit ADC
908QC16 16 KB
908QC8 8 KB
908QC4 4 KB
512B 1xESCI 1
384B 1xESCI 1
384B 1xESCI 1
3
3
Seat position motors, occupancy sensor,
control panel
Seat
Engine
Sensors, small motors
4-ch.
+
2-ch.
16 MHz CPU, 3.3
LIN/J2602,
Watchdog,
General Market
Up to 10-ch.,
10-bit ADC
Climate
Small motors, control panel
OSC 16, 20, 28 COP, LVI,
POR, KBI
to
5.0
Mirror, central ECU, mirror switch,
window lift, seat control switch, door lock
Door
Industrial
control
Robots, stepper motors, factory
automation equipment
4-ch.
+
2-ch.
16 MHz CPU, 3.3
LIN/J2602,
Watchdog,
General Market
Up to 10-ch.,
10-bit ADC
OSC 16, 20, 28 COP, LVI,
POR, KBI
to
5.0
Motion
control
Camera zoom control, door openers,
treadmills, toys