Freescale MC9S08QE8CTG

S0820MHz8KB（8K x 8）

Overview

The MC9S08QE8CTG is a 8-bit Microcontroller based on enhanced HCS08 CPU (10MHz bus) with CISC architecture operates at a maximum frequency of 20MHz. The device incorporates 8kB internal flash, 0.512kB internal RAM, 8-channel 10-bit A/D converter and 12 general-purpose I/O pins. This device also features peripherals like one inter-integrated circuit (IIC) bus module to operate at up to 100kbps, one serial peripheral interface modules (SPI) and an analog comparator. Internal clock source (ICS) containing a frequency-locked-loop (FLL) controlled by internal or external reference, precision trimming of internal reference allowing 0.2% resolution and 2% deviation. Watchdog computer operating properly (COP) reset with option to run from dedicated 1kHz internal clock source.

Features

• Peripherals

– ADC — 10-channel, 12-bit resolution; 2.5 ?s conversion time; automatic compare function; 1.7 mV/?C temperature sensor; internal bandgap reference channel; operation in stop3; fully functional from 3.6 V to 1.8 V

– ACMPx — Two analog comparators with selectable interrupt on rising, falling, or either edge of comparator output; compare option to fixed internal bandgap reference voltage; outputs can be optionally routed to TPM module; operation in stop3

– SCI — Full-duplex non-return to zero (NRZ); LIN master extended break generation; LIN slave extended break detection; wake-up on active edge

– SPI — Full-duplex or single-wire bidirectional; double-buffered transmit and receive; master or slave mode; MSB-first or LSB-first shifting

– IIC — Up to 100 kbps with maximum bus loading; multi-master operation; programmable slave address; interrupt driven byte-by-byte data transfer; supporting broadcast mode and 10-bit addressing

– TPMx — Two 3-channel (TPM1 and TPM2); selectable input capture, output compare, or buffered edge- or center-aligned PWM on each channel

– RTC — (Real-time counter) 8-bit modulus counter with binary or decimal based prescaler; external clock source for precise time base, time-of-day, calendar or task scheduling functions; free running on-chip low power oscillator (1 kHz) for cyclic wakeup without external components; runs in all MCU modes

• Input/Output

– 26 GPIOs, one output-only pin and one input-only pin

– Eight KBI interrupts with selectable polarity

– Hysteresis and configurable pullup device on all input pins; configurable slew rate and drive strength on all output pins.

• Package Options

– 32-pin LQFP, 32-pin QFN, 28-pin SOIC, 20-pin SOIC, 16-pin PDIP, 16-pin TSSOP

• 8-Bit HCS08 Central Processor Unit (CPU)

– Up to 20 MHz CPU at 3.6 V to 1.8 V across temperature range of –40 °C to 85 °C

– HC08 instruction set with added BGND instruction

– Support for up to 32 interrupt/reset sources

• On-Chip Memory

– Flash read/program/erase over full operating voltage and temperature

– Random-access memory (RAM)

– Security circuitry to prevent unauthorized access to RAM and flash contents

• Power-Saving Modes

– Two low power stop modes

– Reduced power wait mode

– Low power run and wait modes allow peripherals to run while voltage regulator is in standby

– Peripheral clock gating register can disable clocks to unused modules, thereby reducing currents

– Very low power external oscillator that can be used in stop2 or stop3 modes to provide accurate clock source to real time counter

– 6 μs typical wake-up time from stop3 mode

• Clock Source Options 

– Oscillator (XOSC) — Loop-control Pierce oscillator; crystal or ceramic resonator range of 31.25 kHz to 38.4 kHz or 1 MHz to 16 MHz

– Internal Clock Source (ICS) — Internal clock source module containing a frequency-locked-loop (FLL) controlled by internal or external reference; precision trimming of internal reference allows 0.2% resolution and 2% deviation over temperature and voltage; supporting bus frequencies from 1 MHz to 10 MHz

• System Protection

– Watchdog computer operating properly (COP) reset with option to run from dedicated 1 kHz internal clock source or bus clock

– Low-voltage warning with interrupt

– Low-voltage detection with reset or interrupt

– Illegal opcode detection with reset 

– Illegal address detection with reset

– Flash block protection

Applications

• Automotive

• Heating Ventilation, and Air Conditioning (HVAC)

• Industrial

• Air Conditioning (AC)

• Electricity Grid and Distribution

• Gas Meter

• Heart Monitors

• Heat Metering

• Industrial HMI

• Smart Power Socket and Light Switch

• Vital Signs Monitors

• Water Meter