STR91xFAx3x STR91xFAx4x
ARM966E-S™ 16/32-Bit Flash MCU with Ethernet, USB, CAN,
AC motor control, 4 timers, ADC, RTC, DMA
Features
■ 16/32-bit 96 MHz ARM9E based MCU
– ARM966E-S RISC core: Harvard archi-
tecture, 5-stage pipeline, Tightly-Coupled
Memories (SRAM and Flash)
LQFP80 12 x12mm
LQFP128 14 x 14mm
– STR91xFA implementation of core adds
high-speed burst Flash memory interface,
instruction prefetch queue, branch cache
LFBGA144 10 x 10 x 1.7
– Up to 96 MIPS directly from Flash memory
– Single-cycle DSP instructions supported
– Binary compatible with ARM7 code
– CAN interface (2.0B Active)
– 3 16550-style UARTs with IrDA protocol
2
■ Dual burst Flash memories, 32-bits wide
– 256 KB/512 KB/1 MB/2 MB Main Flash
– 32 KB/128 KB Secondary Flash
– 2 Fast I C™, 400 kHz
– 2 channels for SPI™, SSI™, or Microwire™
■ External Memory Interface (EMI)
– 8- or 16-bit data, up to 24-bit addressing
– Static Async modes for LQFP128
– Sequential Burst operation up to 96 MHz
– 100 K min erase cycles, 20 yr min retention
■ SRAM, 32-bits wide
– Additional burst synchronous modes for
LFBGA144
– 96K bytes, optional battery backup
■ Up to 80 I/O pins (muxed with interfaces)
■ 16-bit standard timers (TIM)
■ 9 programmable DMA channels
■ Clock, reset, and supply management
– 4 timers each with 2 input capture, 2 output
compare, PWM and pulse count modes
– Internal oscillator operating with external
4-25 MHz crystal
– Internal PLL up to 96 MHz
– Real-time clock provides calendar
functions, tamper, and wake-up functions
– Reset Supervisor monitors supply voltage,
watchdog, wake-up unit, external reset
■ 3-Phase induction motor controller (IMC)
■ JTAG interface with boundary scan
■ Embedded trace module (ARM ETM9)
Table 1.
Reference
Device summary
Part number
– Brown-out monitor
– Run, Idle, and Sleep Mode as low as 50 uA
STR910FAM32, STR910FAW32,
STR910FAZ32, STR912FAW32
STR91xFAx32
STR91xFAx42
STR91xFAx44
STR91xFAx46
■ Vectored interrupt controller (VIC)
– 32 IRQ vectors, 30 interrupt pins
– Branch cache minimizes interrupt latency
STR911FAM42, STR911FAW42,
STR912FAW42, STR912FAZ42
STR911FAM44 STR911FAW44
STR912FAW44, STR912FAZ44
■ 8-channel, 10-bit A/D converter (ADC)
– 0 to 3.6 V range, 0.7 usec conversion
STR911FAM46, STR911FAW46,
STR912FAW46, STR912FAZ46
STR911FAM47, STR911FAW47,
STR912FAW47, STR912FAZ47
■ 10 Communication interfaces
– 10/100 Ethernet MAC with DMA and MII
– USB Full-speed (12 Mbps) slave device
STR91xFAx47
May 2008
Rev 3
1/101
www.st.com
1