Freescale Flexis AC Microcontrollers

The Flexis AC scalable microcontroller (MCU) family, from Freescale Semiconductor, is designed to help engineers cut through the noise in large appliance and industrial applications. Freescale’s Flexis AC family features 8-bit devices (MC9S08AC128/96/60/48/32) and 32-bit V1 ColdFire MCUs (MCF51AC256/128) designed to provide exceptional EMC/EMI performance and an array of on-chip peripherals to help reduce component count, system complexity and overall system cost. As the third member of Freescale’s Flexis series of 8- to 32-bit pin-, peripheral- and software-compatible MCUs, the AC family offers an upward migration path from existing Freescale 8-bit MC9S08AW products. Samples of the Flexis AC devices are available now. Suggested resale pricing (USD) for the S08AC128 in 10K quantities starts at $2.48, and the MCF51AC256 starts at $3.54 in 10K quantities.

The Flexis AC family is an ideal choice for a single-chip motor control and human-machine interface (HMI) solution in white goods applications, such as washing machines, dryers, refrigerators, dishwashers and other major appliances. The product family is also scalable and flexible enough to meet the needs of a wide range of general industrial applications, from factory automation to building control to HVAC systems.

The Flexis AC devices’ outstanding EMC/EMI performance at 5V enables designers to create cost-effective and electromagnetically quieter systems by reducing the number of required external components for these applications.

To help enable basic to advanced motor control, the Flexis AC devices feature three time/pulse-width modulators (TPM) on the 8-bit S08AC128/96 devices and an advanced 16-bit FlexTimer module on the 32-bit MCF51AC256/128 ColdFire MCUs designed to simplify the control of complex solutions.

To enhance system integrity, security and reliability, the Flexis AC MCUs integrate a wide range of hardware and software system protection features. These safety features help manufacturers of automatic controls used in large appliance and industrial equipment comply with key regulations, such as the IEC 60730 class B regulation for safe, reliable operation of electronic controls in household appliances. Additional features, such as active power-on reset, low voltage detection and low voltage warning, help protect against system failure caused by brownouts. These on-chip features make the Flexis AC family one of the most robust MCU offerings in its class.

MCF51AC256/128 32-bit ColdFire MCU Features

  • 50MHz 32-bit ColdFire V1 core with 25MHz bus frequency
  • Up to 32 KB SRAM / Up to 256 KB flash
  • Single supply 5V operation
  • High EMC/EMI performance
  • 2x 6-channel 16-bit FlexTimer Module (FTM), 1x 2-channel 16-bit TPM
  • 24-channel 12-bit ADC
  • msCAN interface for industrial control
  • Real time counter (RTC)
  • 2x SPI, 2x SCI and I2C bus interface with broadcasting mode
  • Low voltage detect (LVD), low voltage warning (LVW)
  • Multi-clock generator (MCG)
  • System protection features: independently clocked COP and CRC
  • Up to 70 GPIO
  • 64LQFP, 64QFP and 80LQFP package options

MC9S08AC128/96 8-bit MCU Features

  • 40MHz S08 core with 20MHz bus frequency
  • Up to 8 KB SRAM / Up to 128 KB flash
  • Pin-compatible with AW60 MCU
  • Internal clock generator (ICG)
  • 2x SPI, 2x SCI and 12C bus interface with broadcasting mode
  • 16-bit timers: 1×2-channel, 2x 6-channel
  • 16-channel 10-bit ADC
  • Real-time interrupt
  • System protection features: independently clocked COP and CRC
  • Up to 70 GPIO
  • 44LQFP, 64QFP and 80LQFP package options

More info: Freescale Flexis Microcontroller Series