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8-pin MCUs add memory, peripherals

STMicroelectronics has completed its ST7 UltraLite family of 8-pin microcontrollers for simple and very cost-sensitive applications with the ST7FLITEU0 series, which adds more memory and system features. The devices come in 8-pin SO, DIP and 0.9-mm-thick DFN packages, with temperature qualification up to
125C, allowing their use in HVAC, homeappliance, lighting-control and powertool markets. ST has doubled the flash memory to 2 kbytes, with 128 bytes of data EEPROM. The chips include a trimmable 8-MHz RC oscillator, with prescaler ratios down to 500 kHz, and a very stable and accurate low-voltage and auxiliary-voltage detector. The MCUs target simple motor drives and include features such as an embedded 12-bit auto-reload timer, operating over a 2-kHz to 4-MHz range, which can generate four independent PWM signals. Development support is available through a complete set of hardware and software tool chains from ST and from third parties, and includes inexpensive tools such as ST’s Stick Programmer and Raisonance’s ReVA Evaluation kit and R-link USB Debugging and Programming Tool. Pricing starts at$0.55(10,000).

STMicroelectronics, www.st.com