Datasheet

Target Applications
• Healthcaremonitoring
andinstrumentation
• HVACandbuildingcontrol
• Gas,waterandheatermeters
• Securitycameras
• Digitalcameras
• Measurementequipment
Overview
The Flexis
™
series of controllers is the connection
point on the Freescale Controller Continuum,
where 8- and 32-bit compatibility becomes
reality. The Flexis series includes complementary
families of 8-bit S08 and 32-bit ColdFire
®
V1
microcontrollers that share a common set of
peripherals and development tools to deliver the
ultimate in migration flexibility. The QE family,
comprised of a pin-compatible 8-bit and 32-bit
device duo, is the first family in the Flexis series.
The S08QE128 device pushes the boundaries
of 8-bit performance with up to 128 KB of flash
memory and a 24-channel, 12-bit analog-to-digital
converter (ADC). The S08QE128 includes up to
3.6V supply voltage, a 50 MHz CPU core and
three timers for improved motor control—perfect
for health care monitoring instrumentation and
electronics such as digital and web cameras.
The 8-bit S08QE128 is pin-, peripheral- and
tool-compatible with the 32-bit MCF51QE128
device, providing unprecedented design freedom
across the performance spectrum.
Flexis
™
Microcontroller Series
MC9S08QE128
8-bit Fact Sheet
Features
Benefits
8-bit HCS08 Central Processing Unit (CPU)
• Upto50.233MHzHCS08CPUfrom2.1Vto
3.6V, and 20 MHz CPU at 1.8V to 2.1V across
temperature range of -40°C to +85°C
• Offershighperformance,evenatlowvoltagelevels
for battery-operated applications
• Providesbusspeedoperationof25.117MHzfrom
2.1V to 3.6V and 10 MHz from 1.8 to 2.1V
• HCS08instructionsetwithaddedBGNDinstruction
• Easytolearnandusearchitecture
• Backwardobjectcodecompatibilitywith68HC08
and 68HC05 for reuse of existing libraries can still
be used
• Allowsforefcient,compactmodulecodingin
assembly or C compiler
• BGNDallowsusertoenterbackgrounddebug
modethattakesadvantageofon-chip
in-circuit emulator (ICE)
• Supportforupto32interrupt/resetsources
• Allowsforsoftwareexibilityandoptimizationfor
real-time applications
On-Chip Memory
• Upto128KBashread/program/eraseoverfull
operating voltage and temperature
• Allowsusertotakefulladvantageof
in-application,reprogrammabilitybenetsin
virtually any environment
• Upto8KBrandom-accessmemory(RAM)
• Securitycircuitrypreventsunauthorizedaccess
toRAMandashcontentstoreducesystem
power consumption
Power-Saving Modes
• Twoultra-low-power(ULP)stopmodes,oneof
which allows limited use of peripherals
• Allowscontinuedapplicationsamplinginareduced
power state which extends battery life
• NewULPpowerwaitmode
• 6µstypicalwakeuptimefromstop3mode
• InternalclockSource(ICS)—Modulecontaininga
frequencylocked-loop(FLL)controlledbyinternal
or external reference
• Eliminatesuseofanexternalclocksource.
This ultimately reduces system costs associated
with development
• Oscillator(OSC)—Loop-controlPierceoscillator;
crystalorceramicresonatorrangeof31.25kHzto
38.4kHzor1MHzto16MHz
• Includesultra-low-powerOSCforaccurate
timebase in low-power modes
Voltage
Regulator
2 x SPI
6-ch., 16-bit
Timer
16 KBI pins
ICS +
ULP OSC
GPIO
ICE + BDM
24-ch., 12-bit
ADC
COP
RTC
2 x SCI
2 x I
2
C
2 x 3-ch., 16-bit
Timers
2 x
Comparator
S08 CPU
25 MHz Bus Speed
System
Integration
Memory
Memory Options
8 KB
SRAM
128 KB
Flash
4 KB
SRAM
64 KB
Flash
S08QE128 Block Diagram