STMICROELECTRONICS STR912FAW47X6 芯片, 32位微控制器, ARM9, 96MHZ, LQFP-128
STR91xFA is a series of ARM®-powered microcontrollers which combines a 16/32-bit ARM966E-S RISC processor core, dual-bank Flash memory, large SRAM for data or code, and a rich peripheral set to form an ideal embedded controller for a wide variety of applications such as point-of-sale terminals, industrial automation, security and surveillance, vending machines, communication gateways, serial protocol conversion, and medical equipment. The ARM966E-S core can perform single-cycle DSP instructions, good for speech processing, audio algorithms, and low-end imaging.
**Key Features**
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16/32-bit 96 MHz ARM9E based MCU
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ARM966E-S™ RISC core: Harvard archi-tecture, 5-stage pipeline, Tightly-Coupled Memories SRAM and Flash
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STR91xFA implementation of core adds high-speed burst Flash memory interface, instruction prefetch queue, branch cache
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Up to 96 MIPS directly from Flash memory
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Single-cycle DSP instructions supported
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Binary compatible with ARM7 code
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Dual burst Flash memories, 32-bits wide
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256 KB/512 KB/1 MB/2 MB main Flash
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32 KB/128 KB secondary Flash
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Sequential Burst operation up to 96 MHz
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100 K min erase cycles, 20 yr min retention
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SRAM, 32-bits wide
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64K or 96K bytes, optional battery backup
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9 programmable DMA channels
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Clock, reset, and supply management
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Internal oscillator operating with external 4-25 MHz crystal
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Internal PLL up to 96 MHz
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Real-time clock provides calendar functions, tamper, and wake-up functions
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Reset Supervisor monitors supply voltage, watchdog, wake-up unit, external reset
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Brown-out monitor
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Run, Idle, and Sleep Mode as low as 50 uA
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Vectored interrupt controller VIC
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32 IRQ vectors, 30 interrupt pins
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Branch cache minimizes interrupt latency
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8-channel, 10-bit A/D converter ADC
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0 to 3.6 V range, 0.7 usec conversion
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10 Communication interfaces
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10/100 Ethernet MAC with DMA and MII
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USB Full-speed 12 Mbps slave device
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CAN interface 2.0B Active
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3 16550-style UARTs with IrDA protocol
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2 Fast I2C, 400 kHz
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2 channels for SPI, SSI™, or MICROWIRE™
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External Memory Interface EMI
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8- or 16-bit data, up to 24-bit addressing
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Static Async modes for LQFP128
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Additional burst synchronous modes for LFBGA144
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Up to 80 I/O pins muxed with interfaces
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16-bit standard timers TIM
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4 timers each with 2 input capture, 2 output compare, PWM and pulse count modes
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3-Phase induction motor controller IMC
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JTAG interface with boundary scan
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Embedded trace module ARM® ETM9™