NXP USA Inc.

S12 HCS12 Microcontroller IC 16-bit 25MHz 64KB(64K x 8) Flash 64-LQFP(10x10)

Introduction

The MC9S12G-Family is an optimized, automotive, 16-bit microcontroller product line focused on

low-cost, high-performance, and low pin-count. This family is intended to bridge between high-end 8-bit

microcontrollers and high-performance 16-bit microcontrollers, such as the MC9S12XS-Family. The

MC9S12G-Family is targeted at generic automotive applications requiring CAN or LIN/J2602

communication. Typical examples of these applications include body controllers, occupant detection, door

modules, seat controllers, RKE receivers, smart actuators, lighting modules, and smart junction boxes.

The MC9S12G-Family uses many of the same features found on the MC9S12XS- and MC9S12P-Family,

including error correction code (ECC) on flash memory, a fast analog-to-digital converter (ADC) and a

frequency modulated phase locked loop (IPLL) that improves the EMC performance. 

The MC9S12G-Family is optimized for lower program memory sizes down to 16k. In order to simplify

customer use it features an EEPROM with a small 4 bytes erase sector size.

The MC9S12G-Family deliver all the advantages and efficiencies of a 16-bit MCU while retaining the low

cost, power consumption, EMC, and code-size efficiency advantages currently enjoyed by users of NXP’s

existing 8-bit and 16-bit MCU families. Like the MC9S12XS-Family, the MC9S12G-Family run 16-bit

wide accesses without wait states for all peripherals and memories. The MC9S12G-Family is available in

100-pin LQFP, 64-pin LQFP, 48-pin LQFP/QFN, 32-pin LQFP and 20-pin TSSOP package options and

aims to maximize the amount of functionality especially for the lower pin count packages. In addition to

the I/O ports available in each module, further I/O ports are available with interrupt capability allowing

wake-up from stop or wait modes.

Chip-Level Features

On-chip modules available within the family include the following features:

• S12 CPU core

• Up to 240 Kbyte on-chip flash with ECC

• Up to 4 Kbyte EEPROM with ECC

• Up to 11 Kbyte on-chip SRAM

• Phase locked loop (IPLL) frequency multiplier with internal filter

• 4–16 MHz amplitude controlled Pierce oscillator

• 1 MHz internal RC oscillator

• Timer module (TIM) supporting up to eight channels that provide a range of 16-bit input capture,

output compare, counter, and pulse accumulator functions

• Pulse width modulation (PWM) module with up to eight x 8-bit channels

• Up to 16-channel, 10 or 12-bit resolution successive approximation analog-to-digital converter

(ADC)

• Up to two 8-bit digital-to-analog converters (DAC)

• Up to one 5V analog comparator (ACMP)

• Up to three serial peripheral interface (SPI) modules

• Up to three serial communication interface (SCI) modules supporting LIN communications

• Up to one multi-scalable controller area network (MSCAN) module (supporting CAN protocol

2.0A/B)

• On-chip voltage regulator (VREG) for regulation of input supply and all internal voltages

• Autonomous periodic interrupt (API)

• Precision fixed voltage reference for ADC conversions

• Optional reference voltage attenuator module to increase ADC accuracy

12V1 HCS12 Microcontroller IC 16-Bit 25MHz 16KB (16K x 8) FLASH 32-LQFP (7x7)

Introduction

The MC9S12G-Family is an optimized, automotive, 16-bit microcontroller product line focused on

low-cost, high-performance, and low pin-count. This family is intended to bridge between high-end 8-bit

microcontrollers and high-performance 16-bit microcontrollers, such as the MC9S12XS-Family. The

MC9S12G-Family is targeted at generic automotive applications requiring CAN or LIN/J2602

communication. Typical examples of these applications include body controllers, occupant detection, door

modules, seat controllers, RKE receivers, smart actuators, lighting modules, and smart junction boxes.

The MC9S12G-Family uses many of the same features found on the MC9S12XS- and MC9S12P-Family,

including error correction code (ECC) on flash memory, a fast analog-to-digital converter (ADC) and a

frequency modulated phase locked loop (IPLL) that improves the EMC performance. 

The MC9S12G-Family is optimized for lower program memory sizes down to 16k. In order to simplify

customer use it features an EEPROM with a small 4 bytes erase sector size.

The MC9S12G-Family deliver all the advantages and efficiencies of a 16-bit MCU while retaining the low

cost, power consumption, EMC, and code-size efficiency advantages currently enjoyed by users of NXP’s

existing 8-bit and 16-bit MCU families. Like the MC9S12XS-Family, the MC9S12G-Family run 16-bit

wide accesses without wait states for all peripherals and memories. The MC9S12G-Family is available in

100-pin LQFP, 64-pin LQFP, 48-pin LQFP/QFN, 32-pin LQFP and 20-pin TSSOP package options and

aims to maximize the amount of functionality especially for the lower pin count packages. In addition to

the I/O ports available in each module, further I/O ports are available with interrupt capability allowing

wake-up from stop or wait modes.

Chip-Level Features

On-chip modules available within the family include the following features:

• S12 CPU core

• Up to 240 Kbyte on-chip flash with ECC

• Up to 4 Kbyte EEPROM with ECC

• Up to 11 Kbyte on-chip SRAM

• Phase locked loop (IPLL) frequency multiplier with internal filter

• 4–16 MHz amplitude controlled Pierce oscillator

• 1 MHz internal RC oscillator

• Timer module (TIM) supporting up to eight channels that provide a range of 16-bit input capture,

output compare, counter, and pulse accumulator functions

• Pulse width modulation (PWM) module with up to eight x 8-bit channels

• Up to 16-channel, 10 or 12-bit resolution successive approximation analog-to-digital converter

(ADC)

• Up to two 8-bit digital-to-analog converters (DAC)

• Up to one 5V analog comparator (ACMP)

• Up to three serial peripheral interface (SPI) modules

• Up to three serial communication interface (SCI) modules supporting LIN communications

• Up to one multi-scalable controller area network (MSCAN) module (supporting CAN protocol

2.0A/B)

• On-chip voltage regulator (VREG) for regulation of input supply and all internal voltages

• Autonomous periodic interrupt (API)

• Precision fixed voltage reference for ADC conversions

• Optional reference voltage attenuator module to increase ADC accuracy

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HCS12X HCS12X Microcontroller IC 16-Bit 40MHz 128KB (128K x 8) FLASH 80-QFP (14x14)

MC9S12XS256

Covers MC9S12XS Family

MC9S12XS256

MC9S12XS128

MC9S12XS64

MC9S12XS256

Introduction

The new S12XS family of 16-bit micro controllers is a compatible, reduced version of the S12XE family.

These families provide an easy approach to develop common platforms from low-end to high-end

applications, minimizing the redesign of software and hardware.

Targeted at generic automotive applications and CAN nodes, some typical examples of these applications

are: Body Controllers, Occupant Detection, Door Modules, RKE Receivers, Smart Actuators,Lighting

Modules and Smart Junction Boxes amongst many others.

The S12XS family retains many of the features of the S12XE family including Error Correction Code

(ECC) on Flash memory, a separate Data-Flash Module for code or data storage, a Frequency Modulated

Locked Loop (IPLL) that improves the EMC performance and a fast ATD converter.

s12XS family delivers 32-bit performance with all the advantages and efficiencies ofa 16-bit MCU while

retaining the low cost, power consumption, EMC and code-size efficiency advantages currently enjoyed

by users of Freescale's existing 16-bit S12and S12X MCU families. Like members of other S12X

families, the S12XS family runs 16-bit wide accesses without wait states for all peripherals and memories.

The S12XS family is available in 112-pinLQFP,80-pin QFP,64-pin LQFP package options and maintains

a high level of pin compatibility with the S12XE family. In addition to the I/O ports available in each

module, up to 18 further I/O ports are available with interrupt capability allowing Wake-Up from stop or

wait modes.

The peripheral set includes MSCAN, SPI, two SCIs, an 8-channe1 24-bit periodic interrupt timer, 8-

channel 16-bit Timer, 8-channel PWM and up to 16- channel 12-bit ATD converter.

Software controlled peripheral-to-port routing enables access to a flexible mix of the peripheral modules

in the lower pin count package options.

Features

• 16-bit CPU12X

— Upward compatible with S12 instruction set with the exception of five Fuzzy instructions

(MEM, WAV, WAVR, REV, REVW) which have been removed

— Enhanced indexed addressing

— Access to large data segments independent of PPAGE

• INT (interrupt module)

— Seven levels of nested interrupts

— Flexible assignment of interrupt sources to each interrupt level.

— External non-maskable high priority interrupt (XIRQ)

— The following inputs can act as Wake-up Interrupts

– IRQ and non-maskable XIRQ

– CAN receive pins

– SCI receive pins

– Depending on the package option up to 20 pins on ports J, H and P configurable as rising or

falling edge sensitive

• MMC (module mapping control)

• DBG (debug module)

— Monitoring of CPU bus with tag-type or force-type breakpoint requests

— 64 x 64-bit circular trace buffer captures change-of-flow or memory access information

• BDM (background debug mode)

• OSC_LCP (oscillator)

— Low power loop control Pierce oscillator utilizing a 4MHz to 16MHz crystal

— Good noise immunity

— Full-swing Pierce option utilizing a 2MHz to 40MHz crystal

— Transconductance sized for optimum start-up margin for typical crystals

• IPLL (Internally filtered, frequency modulated phase-locked-loop clock generation)

— No external components required

— Configurable option to spread spectrum for reduced EMC radiation (frequency modulation)

• CRG (clock and reset generation)

— COP watchdog

— Real time interrupt

— Clock monitor

— Fast wake up from STOP in self clock mode

• Memory Options

— 64, 128 and 256 Kbyte Flash

— Flash General Features

– 64 data bits plus 8 syndrome ECC (Error Correction Code) bits allow single bit failure

correction and double fault detection

– Erase sector size 1024 bytes

– Automated program and erase algorithm

– Protection scheme to prevent accidental program or erase

– Security option to prevent unauthorized access

– Sense-amp margin level setting for reads

— 4 and 8 Kbyte Data Flash space

– 16 data bits plus 6 syndrome ECC (Error Correction Code) bits allow single bit failure

correction and double fault detection

– Erase sector size 256 bytes

– Automated program and erase algorithm

— 4, 8 and 12 Kbyte RAM

• 16-channel, 12-bit Analog-to-Digital converter

— 8/10/12 Bit resolution

— 3µs, 10-bit single conversion time

— Left or right justified result data

— External and internal conversion trigger capability

— Internal oscillator for conversion in Stop modes

— Wake from low power modes on analog comparison > or <= match

— Continuous conversion mode

— Multiplexer for 16 analog input channels

— Multiple channel scans

— Pins can also be used as digital I/O

• MSCAN (1 M bit per second, CAN 2.0 A, B software compatible module)

— 1 Mbit per second, CAN 2.0 A, B software compatible module

– Standard and extended data frames

– 0 - 8 bytes data length

– Programmable bit rate up to 1 Mbps

— Five receive buffers with FIFO storage scheme

— Three transmit buffers with internal prioritization

— Flexible identifier acceptance filter programmable as:

– 2 x 32-bit

– 4 x 16-bit

– 8 x 8-bit

— Wake-up with integrated low pass filter option

— Loop back for self test

— Listen-only mode to monitor CAN bus

— Bus-off recovery by software intervention or automatically

— 16-bit time stamp of transmitted/received messages

• TIM (standard timer module)

— 8 x 16-bit channels for input capture or output compare

— 16-bit free-running counter with 8-bit precision prescaler

— 1 x 16-bit pulse accumulator

• PIT (periodic interrupt timer)

— Up to four timers with independent time-out periods

— Time-out periods selectable between 1 and 224 bus clock cycles

— Time-out interrupt and peripheral triggers

— Start of timers can be aligned

• Up to 8 channel x 8-bit or 4 channel x 16-bit Pulse Width Modulator

— Programmable period and duty cycle per channel

— Center- or left-aligned outputs

— Programmable clock select logic with a wide range of frequencies

• Serial Peripheral Interface Module (SPI)

— Configurable for 8 or 16-bit data size

— Full-duplex or single-wire bidirectional

— Double-buffered transmit and receive

— Master or Slave mode

— MSB-first or LSB-first shifting

— Serial clock phase and polarity options

• Two Serial Communication Interfaces (SCI)

— Full-duplex or single wire operation

— Standard mark/space non-return-to-zero (NRZ) format

— Selectable IrDA 1.4 return-to-zero-inverted (RZI) format with programmable pulse widths

— 13-bit baud rate selection

— Programmable character length

— Programmable polarity for transmitter and receiver

— Receive wakeup on active edge

— Break detect and transmit collision detect supporting LIN

• On-Chip Voltage Regulator

— Two parallel, linear voltage regulators with bandgap reference

— Low-voltage detect (LVD) with low-voltage interrupt (LVI)

— Power-on reset (POR) circuit

— Low-voltage reset (LVR)

• Low-power wake-up timer (API)

— Internal oscillator driving a down counter

— Trimmable to +/-5% accuracy

— Time-out periods range from 0.2ms to ~13s with a 0.2ms resolution

• Input/Output

— Up to 91 general-purpose input/output (I/O) pins depending on the package option and 2 inputonly

pins

— Hysteresis and configurable pull up/pull down device on all input pins

— Configurable drive strength on all output pins

• Package Options

— 112-pin low-profile quad flat-pack (LQFP)

— 80-pin quad flat-pack (QFP)

— 64-pin low-profile quad flat-pack (LQFP)

• Operating Conditions

— Wide single Supply Voltage range 3.135 V to 5.5 V at full performance

– Separate supply for internal voltage regulator and I/O allow optimized EMC filtering

— 40MHz maximum CPU bus frequency

— Ambient temperature range –40°C to 125°C

— Temperature Options:

– –40°C to 85°C

– –40°C to 105°C

– –40°C to 125°C