Overview

Addressing the need for design flexibility

and platform compatibility, Freescale has

developed the S12XS family of 16-bit

microcontrollers (MCUs) optimized for a broad

range of cost-sensitive automotive body

electronics applications. The family includes

six devices designed to give you flexibility in

choosing different memory, package and cost

options to accommodate your application

requirements.

The S12XS family provides an economical,

compatible extension to the high-performance

S12XE family, broadening the overall portfolio

by offering you lower cost and smaller

package options. The S12XS and S12XE

families have complementary memory,

peripherals and packages. This flexibility can

help you react quickly to market opportunities

and reduce the cost of migration if application

requirements change during the development

cycle. The full range of S12 and S12X products

enables scalability, hardware and software

reusability, and compatibility across a broad

array of automotive electronics platforms.

2 LIN/SCI

SPI

MSCAN

GPIO

FMPLL

4–12 KB RAM

64–256 KB Flash ECC

INT CRG

DBG

S12X CPU

PWM 8B 8-ch.

Timer 16B 8-ch.

4–8 KB DataFlash

ECC

4-ch. Periodic

Interrupt Timer

64/112 LQFP

80 QFP

ATD 12B

8–16-ch.

S12XS Family Block Diagram

16-bit Microcontrollers

S12XS

Family of automotive microcontrollers

The S12XS family features a streamlined set

of on-chip peripheral, memory and package

options optimized for automotive body and

passenger comfort applications. Compact

packaging makes these devices suitable

for space-constrained applications, such as

small actuators, sensor modules and column-

integrated modules.

Learn More:

For current information about Freescale

products and documentation, please visit

www.freescale.com.

Freescale and the Freescale logo are trademarks or registered trademarks of Freescale Semiconductor, Inc. in

the U.S. and other countries. All other product or service names are the property of their respective owners.

Document Number: S12XSFS

REV 3

Applications

• Seat controllers

• Steering wheel controllers

• Heat ventilation and air conditioning

• Sunroofs

• Door zone modules

• Slave body control modules

• Cost-effective lighting modules

• Cost-effective ABS, EPS

Key Features

Memory

• 64 KB to 256 KB of embedded flash

memory with error correction coding (ECC)

• 4 KB to 12 KB RAM

• Up to 4 KB to 8 KB of data-flash memory

with 256-byte sectors

System

• 40 MHz 16-bit CPU12X upward compatible

with MC9S12 instruction set

• Enhanced interrupt module

• Background debug module (BDM) with

single-wire interface

• 3.3V to 5.0V operation

• Temperature range: -40°C to +125°C

Communications and I/O

• One MSCAN module

• CAN 2.0 A, B software compatible

• One serial peripheral interface (SPI) module

• Two LIN capable serial communication

interfaces (SCI)

• Up to 91 general-purpose input/output

(GPIO) pins

Timers and Analog-to-Digital

Converter (ADC)

• One ADC with 8/10/12-bit resolution and

multiplexer for 16 analog input channels

• 8-channel x 8-bit or 4-channel x 16-bit

pulse width modulator

• Timer (TIM) with 8- x 16-bit channels for

input capture or output compare

Clock

• Internally filtered phase-locked-loop (IPLL)

—no external components required

• Fast wake up from STOP for power saving

and immediate program execution

Specifications

• Package options

64-pin and 112-pin LQFP

80-pin QFP

Benefits

Cost Effectiveness: Optimizes feature set

and packaging for cost-sensitive automotive

body applications

Scalability and Compatibility: Extends

S12X memory range from 64 KB up to

1 MB with the compatible upgrade path

to the S12XE family

Flexibility: Supports cost-sensitive

applications with a balanced set of peripherals;

upgrade path to the S12XE family maximizes

software and hardware reusability

Development Support: Leverages and

expands on the extensive suite of hardware

and software development tools available

today for the S12 and S12X families

Device Flash ROM RAM EE XGATE MPU EBI CAN SCI

(LIN)

SPI IIC ECT TIM PIT PWM ATD Max

Speed

(MHz)

Package

9S12XS256 256 KB 12 KB 8 KB

DataFlash

1 2 1 16B,

8-ch.

4-ch. 8B,

8-ch.

16 32 64 LQFP 80 QFP

112 LQFP

3S12XS256 256 KB 12 KB 1 2 1 16B,

8-ch.

4-ch. 8B,

8-ch.

16 32 64 LQFP 80 QFP

112 LQFP

9S12XS128 128 KB 8 KB 8 KB

DataFlash

1 2 1 16B,

8-ch.

4-ch. 8B,

8-ch.

16 32 64 LQFP

80 QFP 112 LQFP

3S12XS128 128 KB 8 KB 1 2 1 16B,

8-ch.

4-ch. 8B,

8-ch.

16 32 64 LQFP

80 QFP 112 LQFP

9S12XS64 64 KB 4 KB 4 KB

DataFlash

1 2 1 16B,

8-ch.

4-ch. 8B,

8-ch.

16 32 64 LQFP

80 QFP 112 LQFP

3S12XS64 64 KB 4 KB 1 2 1 16B,

8-ch.

4-ch. 8B,

8-ch.

16 32 64 LQFP

80 QFP 112 LQFP