STR912FW44X6                     Description

 STR91xF 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.

STR912FW44X6                              Features

■ 16/32-bit 96 MHz ARM9E based MCU

– ARM966E-S RISC core: Harvard architecture, 5-stage pipeline, Tightly-Coupled

Memories (SRAM and Flash)

– STR91xF implementation of core adds highspeed burst Flash memory interface,

instruction prefetch queue, branch cache

– Up to 96 MIPS directly from Flash memory

– Single-cycle DSP instructions are supported

– Binary compatible with 16/32-bit ARM7 code

■ Dual burst Flash memories, 32-bits wide

– 256KB/512KB Main Flash, 32KB 2nd Flash

– Sequential Burst operation up to 96 MHz

– 100K min erase cycles, 20 yr min retention

■ SRAM, 32-bits wide

– 64K or 96K bytes, optional battery backup

■ 9 programmable DMA channels

– One for Ethernet, eight programmable

channels

■ Clock, reset, and supply management

– Two supplies required. Core: 1.8 V +/-10%,

I/O: 2.7 to 3.6 V

– Internal oscillator operating with external

4-25 MHz crystal

– Internal PLL up to 96MHz

– Real-time clock provides calendar functions,

tamper detection, and wake-up functions

– Reset Supervisor monitors voltage supplies,

watchdog timer, wake-up unit, ext. reset

– Brown-out monitor for early warning interrupt

– Run, Idle, and Sleep Mode as low as 50 uA

■ Operating temperature -40 to +85°C

■ Vectored interrupt controller (VIC)

– 32 IRQ vectors, 30 intr pins, any can be FIQ

– Branch cache minimizes interrupt latency

■ 8-channel, 10-bit A/D converter (ADC)

– 0 to 3.6V range, 0.7 usec conversion

STR912FW44X6                                       Applications

Printers

 Scanners

 alarm systems

video intercoms

HVACs