Overview

The S08QD family is the latest in 8-bit

microcontrollers (MCUs) for automotive

applications from Freescale. The S08QD

family offers an entry point into automotive

S08 devices for general purpose, low end,

space-constrained applications. These QD

MCUs are compatible and scalable with other

low-end to mid-range automotive

S08 products.

Target Applications

• Watchdog coprocessors

• Actuators

• HVAC dampeners

• LED drivers

• Push button control

• Sensors/meters

• Mirror dimming

Key Benefits

• Smallest automotive package option

(8-pin SOIC)

• Cost optimized

• Flash for code flexibility

• Range of temperature options available

8-bit Automotive Microcontrollers

S08QD Family

Small footprint for a host of entry level

automotive applications

Features Benefits

8-bit HCS08 Central Processor Unit (CPU)

• Up to 8 MHz S08 CPU for 125 ns minimum

instruction time

• HC08 instruction set with added

background instruction

• Support for up to 32 interrupt/reset sources

• Supply voltage range of 2.7–5.5V

• Backward object-code compatibility with 68HC08

and 68HC05 allows existing code libraries to be used

• Allows for efﬁcient, compact module coding in

assembly or C compiler

• Allows for software ﬂexibility and optimization for

real-time applications

• Greater scalability of power and performance

through range of voltage for application needs

Integrated Third-Generation Flash Memory and RAM

• Embedded ﬂash that is in-application

reprogrammable over the full operating voltage and

temperature range with a single power supply

• Provides users a single solution for multiple

platforms or a single platform that is ﬁeld

reprogrammable in virtually any environment

• Allows for software ﬂexibility and optimization for

real-time applications

General Purpose Input/Output (GPIO) Lines

• Outputs 10 mA each; 100 mA max for package

• Four general-purpose input output (GPIO)

• One input-only and one output-only line

• Software selectable pull-ups on ports when used as

input; internal pull-up on reset and interrupt

request (IRQ) pin

• Software selectable slew rate control and drive

strength on ports when used as output

• 4-pin keyboard interrupt module with software

selectable polarity on edge or edge/ level modes

• 1-ch. timer/pulse-width modulator; each channel can

be used for input capture, output compare, buffered

edge-aligned PWM or buffered center-aligned PWM

• Software-selectable pull-ups on ports when used as

input; internal pull-up

• Software-selectable slew rate control and drive

strength on ports when used as output

• Single-wire background debug interface

• 8-pin narrow body small outline integrated circuit

(SOIC) packages

• Internal pull-up on reset and IRQ pin

• High-current I/O allows direct drive of LED and other

circuits to virtually eliminate external drivers and to

help reduce system costs

• Helps to reduce customer system cost by

eliminating need for external resistors

• Can conﬁgure ports for slower slew rate and weaker

drive to minimize noise emissions from the MCU

• Keyboard scan with programmable pull-ups/pull-

downs virtually eliminates external glue logic when

interfacing to simple keypads

• Reduce customer system cost

Device Core Flash RAM Analog

(ADC)

Timer Clock Pin

Count

Additional Features

9S08QD4 S08 4 KB 256B 4-ch.,

10-bit

ADC

2-ch. +

1-ch.

ICS 8 16 MHz CPU, Watchdog OSC/Timer, COP,

LVI, ICE, BDM, POR, KBI, Temp Sensor

9S08QD2 S08 2 KB 128B 4-ch.,

10-bit

ADC

2-ch. +

1-ch.

ICS 8 16 MHz CPU, Watchdog OSC/Timer, COP,

LVI, ICE, BDM, POR, KBI, Temp Sensor

Learn More:

For current information about Freescale

products and documentation, please visit

www.freescale.com/automotive.

Cost-Effective Development Tools

DEMO9S08QD4 US$59*

Cost-effective demonstration board with

potentimeter, LEDs, serial port and built-in

USB-BDM cable for debugging

and programming

CYCLONEPROE US$499*

HC08/HCS08/HC12/HCS12 stand-alone flash

programmer or in circuit emulator, debugger,

flash programmer; USB, serial or Ethernet

interface options

USBMULTILINKBDME US$99*

Universal HC08 in-circuit debugger and flash

programmer; USB-PC interface

CWX-HXX-SE Complimentary**

CodeWarrior

Special Edition for HC(S)08/

RS08 MCUs includes integrated development

environment, linker, debugger, unlimited

assembler, Processor Expert™ auto-code

generator, full-chip simulation and

16 KB C compiler

*Prices indicated are MSRP

**Subject to license agreement and registration

Package Options

Part Number Package Temp. Range

S9S08QD2J1MSC 8-pin SOIC -40°C to +125°C

S9S08QD2J1VSC 8-pin SOIC -40°C to +105°C

S9S08QD2J1CSC 8-pin SOIC -40°C to +85°C

S9S08QD4J1CSC 8-pin SOIC -40°C to +85°C

S9S08QD4J1VSC 8-pin SOIC -40°C to +105°C

S9S08QD4J1MSC 8-pin SOIC -40°C to +125°C

Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the

property of their respective owners. The HC08 products incorporate SuperFlash® technology licensed from SST.

Document Number: S08QD4AUTOFS

REV 1

Features Beneﬁts

Integrated Analog Peripherals

• 4-ch., 10-bit ADC with automatic

compare function

• ADC channel connected to on-chip

temperature sensor

• Automatic compare function, software

programmable for greater-than, equal-to

or less-than conditions

• Asynchronous clock source

• Temperature sensor

• Internal bandgap reference channel

• Hardware triggerable using the real-time

interrupt counter

• Low-power and high-speed options

• Can be used for single slope APC and

resistance-capacitance time

• Easy interface to analog inputs/sensors

• Used to set conversion complete and

generate interrupt only when result

matches condition

• Can be used to run ADC when MCU clocks

are off, such as in STOP3 low-power mode

• Calculates temperature without any external

components and saves an ADC input channel

for other use

• Constant voltage source for calibrating ADC

results requires no external components

• Takes periodic measurements without CPU

involvement; can be used in STOP3 with

compare function to take measurement and

wake MCU from STOP3 only when compare

level is reached

• Flexible conﬁguration to meet high

performance and low power requirements

Flexible Clock Options

• Internal clock source module containing

a frequency-locked loop controlled by

internal reference

• Can eliminate cost of external clock

components, use little board space and help

to increase system reliability

Two Timer Modules

• Two programmable 16-bit

timer/PWM modules

1 x 1-ch., 16-bit timer

1 x 2-ch., 16-bit timer

• Each channel can be used for input capture,

output compare, buffered edge-aligned pulse

width modulation (PWM) or buffered

center-aligned PWM

• One of the most cost-effective and ﬂexible

timer modules; each channel is independently

programmable for input capture, output

compare or buffered edge-aligned PWM or

buffered center-aligned PWM

• Timer overﬂow interrupt can be enabled to

generate periodic interrupts for time-based

software loops

• Two separate time bases provide different

interrupt options

System Protection

• Watchdog computer operating properly reset

with option to run from dedicated 1 kHz

internal clock source or bus clock

• Low-voltage detection with reset or interrupt

• Illegal opcode detection with reset

• Flexible ﬂash block protection

• Security feature for ﬂash and RAM

• Always-on power-on reset circuitry

• Resets device in instance of runaway or

corrupted code, and independent clock

source provides additional protection in case

of loss of clock

• Allows system to write/save important

variables before voltage drops too low

• Can hold device in reset until reliable voltage

levels are reapplied to the part

• Helps to secure code sections so that they

cannot be accidently corrupted by

runaway code

• Option to protect various block sizes

• Option to put bootloader code in protected

space and clear ﬂash for reprogramming

• Helps prevent unauthorized access to

memory to protect a customer’s software

8-pin SOIC

3.9 mm x 4.9 mm body

50 mil/1.27 mm pitch