The Precision32™ family offers a full lineup of footprint compatible ARM® Cortex™-M3 based MCU devices ranging in Flash size from 32–256 kB with industry-leading benefits in terms of low power, analog capabilities, configurability, rapid development and integration. The SiM3U1xx family includes USB 2.0 to easily add USB to your embedded designs.

Initializing peripherals and the patented dual-crossbar is a breeze with the Precision32 AppBuilder, a free GUI that enables developers to quickly and graphically initialize peripherals, properties, and pinouts — all without reading the data sheet. Combining the world’s best peripherals with the de facto standard 32-bit core makes designing with an MCU easier than ever.

Features

• 32-bit ARM Cortex-M3 CPU
• 80 MHz maximum system clock
• 32–256 kB Flash and 8–32 kB SRAM
• External bus interface supports up to 16 MB external memory and parallel LCD interface
• Ultra low power modes
  • 85 nA sleep mode w/ brown out detector and 4 kB RAM preserved
  • 350 nA sleep mode w/ RTC (internal oscillator)
  • 650 nA sleep mode w/ RTC (external oscillator)
  • 275 μA/MHz at 80 MHz
• USB 2.0-compliant full speed with 2 kB buffer
• 48 MHz internal oscillator for crystal-less USB operation
• Internal oscillator with PLL: 1–80 MHz ±1.5% accuracy; spread-spectrum mode for reduced EMI
• 2 x 12-bit 250 ksps ADCs (1 MSPS in 10-bit mode)
• 1.2/1.65/2.4 V internal voltage references
• 2 x 10-bit digital-to-analog converters
• Temperature sensor
• 2 low-power comparators with 6-bit programmable voltage reference
• 16 capacitive touch inputs
• 16-channel DMA
• 2 x USART, 2 x UART, 3 x SPI, 2 x I2C, I2S
• 2 x 32-bit or 4 x 16-bit timers with capture/compare
• 2 x 16-bit, 2-ch. counters with capture/compare/PWM
• 16-bit, 6-channel motor control counter
• Up to 6 high drive (5–300mA) I/O
• Up to 65 flexible I/O
• 128/192/256-bit hardware AES encryption
• 16/32-bit CRC
• JTAG, serial-wire, and ETM debugger support
• Temperature range: –40 to +85 °C
• 2.7–5.5 V supply voltage (internal regulator enabled)
• 1.8–3.6 V supply voltage (internal regulator disabled)
• LGA, QFN and TQFP package options (40/64/80/92-pin)

Applications

• Portable medical
• Barcode scanner
• POS peripherals
• Wireless trackers
• USB audio
• White goods
• Motor control
• Home automation/security
• Sensor controllers
• Optical touch screen
• Instrumentation
• USB audio
• 10G+ optical transceivers
• Power Tools
• Vending Machines
• Factory Automation
• Server Backplanes
• Server Fans
• Industrial monitoring
• Model cars/planes
• HVAC
• Lighting
• E-book Readers

Data Sheet

SiM3U1xx

Reference Manual

SiM3U1xx