STR712FR2T6 product image


Microcontrollers - MCU


ARM® core with embedded Flash and RAMThe STR71x series is a family of ARM-powered 32-bit microcontrollers with embeddedFlash and RAM. It combines the high performance ARM7TDMI CPU with an extensiverange of peripheral functions and enhanced I/O capabilities. STR71xF devices have on-chiphigh-speed single voltage FLASH memory and high-speed RAM. STR710R devices havehigh-speed RAM but no internal Flash. The STR71x family has an embedded ARM core andis therefore compatible with all ARM tools and software.Extensive tools supportSTMicroelectronics’ 32-bit, ARM core-based microcontrollers are supported by a completerange of high-end and low-cost development tools to meet the needs of applicationdevelopers. This extensive line of hardware/software tools includes starter kits and completedevelopment packages all tailored for ST’s ARM core-based MCUs. The range ofdevelopment packages includes third-party solutions that come complete with a graphicaldevelopment environment and an in-circuit emulator/programmer featuring a JTAGapplication interface. These support a range of embedded operating systems (OS), whileseveral royalty-free OSs are also available.


STR712FR2T6 Features


• Core– ARM7TDMI 32-bit RISC CPU– 59 MIPS @ 66 MHz from SRAM– 45 MIPS @ 50 MHz from Flash
• Memories– Up to 256 Kbytes Flash program memory(10 kcycles endurance, 20 years retention@ 85 ° C)– 16 Kbytes Flash data memory(100 kcycles endurance, 20 yearsretention@ 85 ° C)– Up to 64 Kbytes RAM– External Memory Interface (EMI) for up to 4banks of SRAM, Flash, ROM– Multi-boot capability
• Clock, reset and supply management– 3.0 to 3.6 V application supply and I/Os– Internal 1.8 V regulator for core supply– Clock input from 0 to 16.5 MHz– Embedded RTC osc. running from external32 kHz crystal– Embedded PLL for CPU clock– Realtime Clock for clock-calendar function– 5 power saving modes: SLOW, WAIT,LPWAIT, STOP and STANDBY modes
• Nested interrupt controller– Fast interrupt handling with multiple vectors– 32 vectors with 16 IRQ priority levels– 2 maskable FIQ sources
• Up to 48 I/O ports– 30/32/48 multifunctional bidirectional I/OsUp to 14 ports with interrupt capability
• 5 timers– 16-bit watchdog timer– 3 16-bit timers with 2 input captures, 2output compares, PWM and pulse counter– 16-bit timer for timebase functions
• 10 communication interfaces– 2 I2C interfaces (1 multiplexed with SPI)– 4 UART asynchronous serial interfaces– Smartcard ISO7816-3 interface on UART1– 2 BSPI synchronous serial interfaces– CAN interface (2.0B Active)– USB Full Speed (12 Mbit/s) DeviceFunction with Suspend and Resume– HDLC synchronous communications
• 4-channel 12-bit A/D converter– Sampling frequency up to 1 kHz– Conversion range: 0 to 2.5 V
• Development tools support– Atomic bit SET and RES operations




Data Bus Width:32 bit
Maximum Clock Frequency:66 MHz
Program Memory Size:256 KB
Data RAM Size:64 KB
Operating Supply Voltage:3 V to 3.6 V
Operating Temperature Range:- 40 C to + 85 C
A/D Bit Size:12 bit
Length:10 mm
Maximum Operating Temperature:+ 85 C
Minimum Operating Temperature:- 40 C
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