GenevaSTMicroelectronics has unveiled details of a new 8-bit microcontroller (MCU) platform that is implemented around a high-performance 8-bit core and a set of state-of-the-art peripherals.
The STM8 platform will be manufactured using an ST-proprietary 130nm embedded non-volatile memory technology, providing increased performance at lower total system cost. In performance, the STM8 leverages a Harvard architecture with 16-bit index registers and stack pointer, a 16Mbyte linear address space, advanced addressing modes and other features designed to support C-programming to deliver high CPU performance in both speed and code density. The core reaches an average of 1.6 cycles per instruction with 20 MIPS of peak performance at 24MHz using a 3-stage pipeline.
The technology has been chosen with the aim of reducing system costs through a high integration level, the ability to embed non-volatile data memory and to provide analog performance in a wide voltage range from 1.65V to 5.5V. For example, the I/O pads have been designed to withstand a high level of external disturbances, leading to robust applications without the expense of external protection elements.
The STM8 platform offers real embedded EEPROM with a performance in endurance and retention comparable to those of external components, making complex flash-based emulation strategies obsolete. The available on-chip flash program memory sizes will range up to 256K. The technology options allow high-speed operation as well as reduced power consumption. All these technological advantages will be available in automotive grade products that operate at temperatures of up to 145°C.
Applications include automotive, industrial, low voltage and battery-operated applications, as well as application-specific standard products.
The STM8 peripherals are homogeneous across ST's 32-bit micro-C families. ST will introduce the first STM8 family in the first half of 2008.