Taking the Lead inLow PowerUltra-Low-Power S08QL MCU Family
As the lowest power S08 devices, the S08QL MCU family offers optimized
performance for ultra-low-power, with increased battery life, reduced cost, andfuture proofed design.

OVERVIEWSOFTWARE DEVELOPMENT TOOLSThe S08QL MCU family provides extreme energy efficiency
at a voltage range of 1.8 to 3.6V, perfect for cost-effective,
battery sensitive, portable, low-power applications.

CodeWarrior Development Studio V11.x

The S08QL family offers low-power features such as two ultralow-power stop modes, low-power run and wait modes, 6 μs
wake-up time, ultra-low-power external oscillator and clock
gating registers to disable clocks to unused peripherals.
In addition to low-power, the S08QL MCU family supports up
to 8 KB of flash memory. It consists of an 8-bit modulo timer, a16-bit timer/PWM (TPM), UART, RTC, 12-bit ADC and analog
comparator. This family can be powered down to 1.8V and still
able to operate at maximum 20 MHz CPU speed.
TARGET APPLICATIONS}} Battery-powered applications}} Residential/commercial garage door openers}} Smoke detectors}} Remote window shutters}} Remote control applications}} Battery-operated toys and games

CodeWarrior Development Studio for Microcontrollers is asuite of tools that supports software development for S08,
and DSC families. To learn more, please visit
nxp.com/CodeWarrior.
S08QL MCU FAMILY BLOCK DIAGRAM
S08QL MCU FAMILY BLOCK DIAGRAM
Core and System

ClocksBDM

S08 Core
20 MHzFlash
4/8 KB

10 MHzBus

RAM
256/512 B

1.8–3.6 V
VoltageRegulator

Frequency-LockLoop (FLL)
Internal ClockSource (ICS)

AnalogTimersInterfaces

1x 12-bit ADC

1x 16-bit TPM

1x SCI(LIN Capable)

1x Analog
Comparator

1x 8-bit MTIM
RTC

Protection

Ultra-LowPower Oscillator

Watchdog Reset(COP)
Low Voltage
Detection (LVD)

I/O Ports
Up to 18
GPIO

High Drive
I/O

8 KBI

IRQ

RESET

S08QL MCU FAMILY FEATURES AND BENEFITS
FeaturesBenefits

Power-Saving Features• Two ultra-low-power stop modes, one of which allows limited use of peripherals• Low-power run and wait modes• Allows continued application sampling in a reduced power state which extendsbattery life

• 6 μs typical wake up time from stop mode

• Allows use of all chip peripherals in a low-power state• Internal clock Source (ICS)—module containing a frequency locked-loop (FLL)
controlled by internal or external reference• Provides choice of frequencies on the fly. Reducing frequency saves current.

• Enables faster execution out of stop modes• 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• Clock gating disables clocks to unused peripherals• Includes ultra-low-power OSC for accurate timebase in low-power modes• Provides flexibility to turn off individual modules• Reduces power consumption

8-bit HCS08 Central Processing Unit (CPU)• Up to 20 MHZ HCS08 CPU from 1.8V to 3.6V and 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 10 MHz from 1.8V to 3.6V
Peripherals• ADC—8-channel, 12-bit resolution; 2.5 μs conversion; automatic comparefunction; internal temperature sensor; internal bandgap reference channel;
operation in low-power stop mode

• Allows up to 8 external ADC channels to be sampled at extremely high speeds• Timer/pulse-width modulator (TPM)—one channel with 16-bit counter,selectable input capture, output compare, or buffered edge- or center-aligned
PWM• 16-bit base free running counter allow higher resolution for input capture
results and longer TPM period comparing to the conventional 8-bit basecounter• Serial communications interface (SCI)—module offering asynchronous
communications,13-bit break option, flexible baud rate generator, double
buffered transmit and receive and optional H/W parity checking and generation• Provides standard UART communications peripheral• Accuracy and full functionality guaranteed across 1.8V to 3.6V operating
voltage of the MCU• Allows full-duplex, asynchronous, NRZ serial communication between MCU andremote devices• Edge interrupt can wake up MCU from low-power mode

• Analog comparator (ACMP) with option to compare to an internal reference
voltage. Output can be optionally routed to TPM as input capture trigger• Requires only single pin for input signal, freeing additional pins for other use• Allows other components in system to see result of comparator with minimaldelay• Can be used for single slope ADC and RC time constant measurements• 8-bit module timer module with 8-bit prescaler (MTIM)• A timer overflow interrupt can be enabled to generate periodic interrupts fortime-based software loops

Input/Output• Up to 18 general purpose input/output (GPIO), one input-only and one outputonly pin• Results in large number of flexible I/O pins that allow developers to easilyinterface device into their own designs• 8 keyboard interrupts (KBI) pins with selectable polarity• Can be used for reading input from a keypad or used as general pin interrupts

S08QL MCU FAMILY PACKAGE OPTIONSPart Number

Temp. Range

Package

MC9S08QL8CTJ-40 to +85 °C

20-pin TSSOPMC9S08QL8CTG-40 to +85 °C

16-pin TSSOPMC9S08QL4CTJ-40 to +85 °C

20-pin TSSOPMC9S08QL4CTG-40 to +85 °C

16-pin TSSOP

www.nxp.com/S08QLNXP and the NXP logo are trademarks of NXP B.V. All other product or service names are the property of their respective
owners. Arm, Cortex, and Keil are registered trademarks of Arm Limited (or its subsidiaries) in the EU and/or elsewhere. All rights
reserved. © 2018 NXP B.V.
Document Number: S08QLMCUFS REV 0
Date of release: July 2018