The STR750 family of 32-bit microcontrollers combines the industry-standard ARM7TDMI 32-bit RISC core, featuring high performance, very low power, and very dense code, with a comprehensive set of peripherals and ST"s latest 0.18µ embedded Flash technology. The STR750 family comprises a range of devices integrating a common set of peripherals as well as USB, CAN and some key innovations like clock failure detection and an advanced motor control timer. It supports both 3.3V and 5V, and it is also available in an extended temperature range (-40 to +105°C). This makes it a genuine general purpose microcontroller family, suitable for a wide range of applications.
Core ARM7TDMI-S 32-bit RISC CPU 54 DMIPS @ 60 MHz
Memories Up to 256 KB Flash program memory (10k W/E cycles, retention 20 yrs @ 85°C) 16 KB Read-While-Write Flash for data (100k W/E cycles, retention 20 yrs@ 85°C) Flash Data Readout and Write Protection 16KBytes embedded high speed SRAM Memory mapped interface (SMI) to ext. Serial Flash (64 MB) w. boot capability
Clock, reset and supply management Single supply 3.3V ±10% or 5V ±10% Embedded 1.8V Voltage Regulators Int. RC for fast start-up and backup clock Up to 60 MHz operation using internal PLL with 4 or 8 MHz crystal/ceramic osc. Smart Low Power Modes: SLOW, WFI, STOP and STANDBY with backup registers Real-time Clock, driven by low power internal RC or 32.768 kHz dedicated osc, for clock-calendar and Auto Wake-up
Nested interrupt controller Fast interrupt handling with 32 vectors 16 IRQ priorities, 2 maskable FIQ sources 16 external interrupt / wake-up lines
DMA 4-channel DMA controller Circular buffer management Support for UART, SSP, Timers, ADC
6 Timers 16-bit watchdog timer (WDG) 16-bit timer for system timebase functions 3 synchronizable timers each with up to 2 input captures and 2 output compare/PWMs. 16-bit 6-ch. synchronizable PWM timer Dead time generation, edge/center-aligned waveforms and emergency stop Ideal for induction/brushless DC motors
8 Communications interfaces 1 I²C interface 3 HiSpeed UARTs w. Modem/LIN capability 2 SSP interfaces (SPI or SSI) up to 16 Mb/s 1 CAN interface (2.0B Active) 1 USB full-speed 12 Mb/s interface with 8 configurable endpoint sizes
10-bit A/D converter 16/11 chan. with prog. Scan Mode & FIFO Programmable Analog Watchdog feature Conversion time: min. 3.75 µs Start conversion can be triggered by timers
Up to 72/38 I/O ports 72/38 GPIOs with High Sink capabilities Atomic bit SET and RES operations
