32-Bit Precision32 USB MCU
Description
SiM3U1xx
High-Performance, Low-Power, 32-Bit Precision32™ USB MCU Family with up to 256 kB of Flash
32-bit ARM® Cortex™-M3 CPU
Analog Peripherals
- 80 MHz maximum frequency
- 2 x 12-Bit Analog-to-Digital Converters: Up to 250 ksps 12-bit
- Single-cycle multiplication, hardware division support
mode or 1 Msps 10-bit mode, internal or external reference
- Nested vectored interrupt control (NVIC) with 16 priority levels
Memory - 32–256 kB Flash, in-system programmable - 8–32 kB SRAM (including 4 kB retention SRAM) - 16-channel DMA controller - External bus interface supports up to 16 MB of external mem-
ory and a parallel LCD interface with QVGA resolution
Power Management - Low drop-out (LDO) regulator - Power-on reset circuit and brownout detectors
- 2 x 10-Bit Current-mode Digital-to-Analog Converters, four-
word buffer enables 12-bit operation
s - 2 x Low-current comparators
- 16-Channel Capacitance-to-Digital: Fast, <1 μA wake-on-touch
n - 2 x Current-to-Voltage Converter, up to 6 mA input range ig Digital and Communication Peripherals
- USB 2.
0-compliant full speed with 10 endpoints, 2 kB buffer,
s oscillator with automatic frequency correction, and transceiver;
no external components needed
e - 2 x USARTs and 2 x UARTs with IrDA and ISO7816 SmartCard D - 3 x SPIs, 2 x I2C, I2S (receive and transmit), 16/32-bit CRC
- 5–3.
3 V 150 mA regulator supports direct USB power - Adjustable external regulator supports up to 3.
6 V, 1000 mA
w - Multiple power modes supported for low power optimization
Low Power Features
e - 85 nA current mode with voltage supply monitor enabled N - Low-current RTC: 350 nA internal LFO, 620 nA external crystal
- 12 μs wakeup (lowest power mode); 1.
5 μs analog setting time
r - 275 μA/MHz active current
- Clocks can be gated off from unused peripherals to save power
fo - Flexible clock divider: Reduce operational frequency up to 128x
Clock Sources
d - Internal oscillator with PLL: 23-80 MHz, reduced EMI mode
- USB internal 48 MHz oscill...
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