Freescale Logo

S08AC: Flexis™ AC Family

The AC family, comprised of pin-compatible 8-bit and 32-bit device duos, is the third family in the Flexis™ series. The Flexis series of controllers is the connection point on the Freescale Controller Continuum, where 8- and 32-bit compatibility becomes reality.

The S08AC128/96/60/48/32 pushes the boundaries of the 8-bit architecture performance with 128Kb of Flash, 3 timer/pulse-width modulators (PWM), 16-channel, 10-bit analog-to-digital converter (ADC) and delivers up to 20MHz in bus frequency. The 8-bit S08AC128/96/60/48/32 are pin-, peripheral- and tool-compatible with the 32-bit MCF51AC256/128 devices. They share a common set of peripherals and development tools delivering the ultimate in migration flexibility.

Features

HCS08 core delivering a 40 MHz core speed and 20 MHz bus speed.

Up to 128 KB Flash
Up to 8 KB RAM
Peripherals
- Inter-Integrated Circuit (I2C)
- Additional Independent 1kHz Clock Source for COP/Watchdog Timer
- Upgraded Serial Communications Interface (SCI)
- Serial Peripheral Interface (SPI)
- Keyboard Interrupt (KBI)
- Timer/PWM (TPM)
- Internal Clock Generator (ICG)
- Background Debug Mode (BDM)
- Cyclic Redundancy Check (CRC)

Portfolio Comparison

Comparison table S08AC vs. S08AW

Related Products

Featured Documentation

MC9S08AC16: MC9S08AC16: Technical Data Sheet, AW16A/8A Datasheet
MC9S08AC60: MC9S08AC60/AC48/AC32 Data Sheet
MC9S08AC128: MC9S08AC128: Advance Information Data Sheet for MC9S08AC64/96/128
MC9S08AC16FS: MC9S08AC16 Fact Sheet
MC9S08AC60FS: MC9S08AC60 Fact Sheet
9S08AC128FS: MC9S08AC128/96 Fact Sheet
AN2764: Improving the Transient Immunity Performance of Microcontroller-Based Applications
MC9S08AC128RM: MC9S08AC128: Technical Data Sheet for MC9S08AC64/96/128
MC9S08AC16AD: MC9S08AC16 Data Sheet Addendum

Current Updates & Releases

CWX-H08-SE: Special Edition: CodeWarrior for Microcontrollers
CWX-H08-PROED-EX: Evaluation: CodeWarrior for Microcontrollers
MCU-V6-2-2-CP: CW MCU v6.2.2 Compiler Patch
DEMOAC: Flexis™ AC Demonstration Board

Target Applications

General Industrial Applications

Building Control
Heating Ventilation and Air Conditioning (HVAC)

Appliance Applications

S08AC Family Members

Features	S08AC128	S08AC96	S08AC60	S08AC48	S08AC32	S08AC16	S08AC8
CORE Speed (MHz)	20	20	20	20	20	20	20
FLASH (KBytes)	128	96	60	48	32	16	8
RAM (Bytes)	8192	6016	2048	2048	2048	1024	768
GPIO	38 / 54 / 70	38 / 54 / 70	22 / 34 / 38 / 54	22 / 34 / 38 / 54	22 / 34 / 38 / 54	22 / 34 / 38	22 / 34 / 38
Keyboard Interrupt	7 / 8	7 / 8	4 / 6 / 7 / 8	4 / 6 / 7 / 8	4 / 6 / 7 / 8	4 / 6 / 7	4 / 6 / 7
ADC Channels	8 / 16	8 / 16	6 / 8 / 16	6 / 8 / 16	6 / 8 / 16	6 / 8	6 / 8
Serial Comunications	2 SCI w/ LIN Support Up to 2 SPI I2C	2 SCI w/ LIN Support Up to 2 SPI I2C	Up to 2 SCI w/ LIN Support SPI I2C	Up to 2 SCI w/ LIN Support SPI I2C	Up to 2 SCI w/ LIN Support SPI I2C	2 SCI w/ LIN Support SPI I2C	2 SCI w/ LIN Support SPI I2C
Cyclic Redundancy Check (CRC)	Yes	Yes	Yes	Yes	Yes	No	No
Timers	Timer 1 - up to 6 ch Timer 2 - up to 6 ch Timer 3 - 2 ch	Timer 1 - up to 6 ch Timer 2 - up to 6 ch Timer 3 - 2 ch	Timer 1 - up to 6 ch Timer 2 - 2 ch Timer 3 - 2 ch	Timer 1 - up to 6 ch Timer 2 - 2 ch Timer 3 - 2 ch	Timer 1 - up to 6 ch Timer 2 - 2 ch Timer 3 - 2 ch	Timer 1 - up to 4 ch Timer 2 - 2 ch Timer 3 - 2 ch	Timer 1 - up to 4 ch Timer 2 - 2 ch Timer 3 - 2 ch
Package	44-Pin LQFP 64-Pin QFP 80-Pin LQFP	44-Pin LQFP 64-Pin QFP 80-Pin LQFP	32-Pin LQFP 44-Pin LQFP 48-Pin QFN 64-Pin LQFP/QFP	32-Pin LQFP 44-Pin LQFP 48-Pin QFN 64-Pin LQFP/QFP	32-Pin LQFP 44-Pin LQFP 48-Pin QFN 64-Pin LQFP/QFP	32-Pin LQFP 44-Pin LQFP 48-Pin QFN	32-Pin LQFP 44-Pin LQFP 48-Pin QFN

^{The EMC performance of an application using this microcontroller is dependent on a number of factors that are outside the control of Freescale Semiconductor. These factors include but are not limited to industrial design, mechanical design, printed circuit board design and layout, components, connectors, and cables. Freescale Semiconductor is unable to guarantee the EMC performance of any microcontroller in a specific application. Careful consideration must be made when designing any application to ensure the necessary level of EMC. For more information on designing robust EMC systems please refer to application note AN2764.}

Product Specifications

Serial Interface - Type	I2C, SCI, SPI, SPI, SCI
Internal Flash (kByte)	32, 96, 60, 48, 16, 128, 8
Additional Features	COP, Internal Clock Generator, Internal Voltage Regulator, KBI, Low Voltage Detect
Bus Frequency - Max (MHz)	20
I/O Pins	34, 38, 70, 54, 22, 69, 32
Core - Operating Frequency - Max (MHz)	40, -
Supply Voltage - Typ (V)	5