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Overview
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.
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.
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.
8-bit Microcontrollers
HC08 QC Family
Fact Sheet
Cost-Effective LIN Family
Features
Benefits
Second-Generation Flash or Cost-Effective ROM Memory Options
Embedded, fully automotive-qualified
flash available
Range of memory from 4 KB to 16 KB
10K write/erase cycles at -40°C to +125°C
Qualified for high temperatures, shock,
vibration and humidity
Cost-reduction path for high-volume,
stable programs
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
Allows real-time flash updates
Internal Clock Oscillator
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
Enhanced SCI—LIN Controller
Full-duplex operation
Programmable 8-bit or 9-bit character length
Programmable baud rates
Separately enabled transmitter and receiver
Interrupt-driven operation with eight
interrupt flags
Capable of communication rates up to
115,000 bps, encompassing all LIN baud rates
Simultaneous transmission and reception of data
Finely adjustable baud rate prescalers allow
precise control of baud rate
ESCI arbiter allows measurement of LIN
synchronization data without separate
timer hardware
Enhanced detection of LIN break symbols to
prevent false interrupts
Periodic Wake-Up Module
Selectable timeout periods (40 s to
three minutes)
Dedicated low-power, 32 kHz internal oscillator
separate from the main system clock sources
Full-duplex operation
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
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908QC16 16 KB 3 512B 1xESCI 1 Up to 10-ch.,
10-bit ADC
4-ch.
+
2-ch.
OSC 16, 20, 28
16 MHz CPU,
COP, LVI,
POR, KBI
3.3
to
5.0
LIN/J2602,
Watchdog,
General Market
908QC8 8 KB
3
384B 1xESCI 1 Up to 10-ch.,
10-bit ADC
4-ch.
+
2-ch.
OSC 16, 20, 28
16 MHz CPU,
COP, LVI,
POR, KBI
3.3
to
5.0
LIN/J2602,
Watchdog,
General Market
908QC4 4 KB
384B 1xESCI 1 Up to 10-ch.,
10-bit ADC
4-ch.
+
2-ch.
OSC 16, 20, 28
16 MHz CPU,
COP, LVI,
POR, KBI
3.3
to
5.0
LIN/J2602,
Watchdog,
General Market
Application
Segments
Specific Application Examples
Roof
Sensor, light sensor, light control,
sun roof
Steering
wheel
Cruise control, wiper, turning signal,
climate control, radio
Seat
Seat position motors, occupancy sensor,
control panel
Engine
Sensors, small motors
Climate
Small motors, control panel
Door
Mirror, central ECU, mirror switch,
window lift, seat control switch, door lock
Industrial
control
Robots, stepper motors, factory
automation equipment
Motion
control
Camera zoom control, door openers,
treadmills, toys