Low-cost 32-bit MCUs target real-time control apps

Low-cost 32-bit MCUs target real-time control apps

High-res PWM, fast A/D, and a floating-point accelerator aid system design

The 32-bit TMS320F2802x/F2803x MCUs are said to bring processor-intensive, real-time control to cost-sensitive applications. The low-cost Piccolo series MCUs feature 40- or 60-MHz operation with a high-resolution PWM and a fast 13- or 16-channel 4.6-Msample/s A/D converter.

They also feature a programmable floating-point control law accelerator (CLA) to offload complex, high-speed control algorithms from the CPU — resulting in up to a fivefold performance jump for common closed-loop applications. They have an enhanced capture/compare input, accurate 10-MHz oscillators, up to 128 Kbytes of flash, a 128-bit security key/lock, and 38 to 80-pin packages. The devices have LIN 2.0, CAN, SPI, SCI, and I2C interfaces.

The chips operate from a single 3.3-V supply and a demonstration board will be available for $49. The first two parts to be released will be the TMS320F28027 and TMS320F28035. ($2.00 to $7.95 ea/volume qty samples available December.)

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