Introduction
The ST10F271 device is a derivative of the STMicroelectronics ST10 family of 16-bit singlechip CMOS microcontrollers.
The ST10F271 combines high CPU performance (up to 32 million instructions per second) with high peripheral functionality and enhanced I/O-capabilities. It also provides on-chip high-speed single voltage Flash memory, on-chip high-speed RAM, and clock generation via PLL.

Features
■ 16-bit CPU with DSP functions
– 31.25ns instruction cycle time at 64MHz max CPU clock
– Multiply/accumulate unit (MAC) 16 x 16-bit multiplication, 40-bit accumulator
– Enhanced boolean bit manipulations
– Single-cycle context switching support
■ On-chip memories
– 128 Kbyte Flash memory (32-bit fetch)
– Single voltage Flash memories with erase/program controller and 100K erasing/programming cycles.
– Up to 16 Mbyte linear address space for code and data (5 Mbytes with CAN or I2C)
– 2 Kbyte internal RAM (IRAM)
– 10 Kbyte extension RAM (XRAM)
– Programmable external bus configuration & characteristics for different address ranges
– Five programmable chip-select signals
– Hold-acknowledge bus arbitration support
■ Interrupt
– 8-channel peripheral event controller for single cycle interrupt driven data transfer
– 16-priority-level interrupt system with 56 sources, sampling rate down to 15.6ns
■ Timers
– Two multi-functional general purpose timer units with 5 timers
■ Two 16-channel capture / compare units
■ 4-channel PWM unit + 4-channel XPWM
■ A/D converter
– 24-channel 10-bit
–3µs minimum conversion time
■ Serial channels
– Two synch. / asynch. serial channels
– Two high-speed synchronous channels
–One I2C standard interface
■ 2 CAN 2.0B interfaces operating on 1 or 2 CAN busses (64 or 2x32 message, C-CAN version)
■ Fail-safe protection
– Programmable watchdog timer
– Oscillator watchdog
■ On-chip bootstrap loader
■ Clock generation
– On-chip PLL with 4 to 8 MHz oscillator
– Direct or prescaled clock input
■ Real time clock and 32kHz on-chip oscillator
■ Up to 111 general purpose I/O lines
– Individually programmable as input, output or special function
– Programmable threshold (hysteresis)
■ Idle, power down and stand-by modes
■ Single voltage supply: 5V ±10%