Datasheet

Features Benefits
> Up to 8 MHz S08 CPU for 125 ns minimum
instruction time
> HC08 instruction set with added
BGND 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
8-bit S08 Central Processing Unit (CPU)
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
> Outputs 10 mA each; 100 mA max
for package
> Two 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-channel 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 plastic dual-inline package (PDIP) and
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
eliminated 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
General Purpose Input/Output (I/O) Lines
MC9S08QD4
8-bit Microcontrollers
T
arget Applications
> DC cooling fan
applications
• Computers
• Low power supplies
• Battery chargers
> Digital Capacitive
Discharge Ignition
(CDI) for motorcycles
> Industrial compressors
> Camera zoom control
> Walkie-talkies
> Vacuum cleaners
> Small and large
appliances
• Toasters
• Low-end microwaves
> Industrial control
> Watch-dog
coprocessors
> Security systems
> Fan control
> AC voltage
line monitors
> Microwave ovens
LVD
4-ch., 10-bit ADC
4 KBI
S08 CPU
1 x 1-ch., 16-bit Timer
4K Flash
256B RAM
COP 1 x 2-ch., 16-bit Timer
ICS (0.2% Resolution,
2% Deviation)
2 GPIO plus
1 In and 1 Out
Overview
The MC9S08QD4 provides design flexibility
and integrated functionality for small appliances
and DC fans. The QD4 includes up to 5.5V
supply voltage, a 10-bit ADC and two timers
for improved motor control. The MC9S08QD4
extends the advantages of the low-end S08
core as low pin count, small package 8-bit
MCU. With pin and tool compatibility with
MC9RS08KA and MC9S08QG8, the QD4
allows designers to move up and down the
performance chain quickly and easily.