SiM3C1xx
High-Performance, Low-Power, 32-Bit Precision32™
MCU Family with up to 256 kB of Flash
32-bit ARM® Cortex™-M3 CPU
Low Power Features
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80 MHz maximum frequency
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85 nA current mode with voltage supply monitor enabled
350 nA current mode with RTC (internal oscillator)
620 nA current mode with RTC (external oscillator)
10 µs wakeup (lowest power mode); 1.5 µs analog setting time
275 µA/MHz active current
Single-cycle multiplication, hardware division support
Nested vectored interrupt control (NVIC) with 16 levels of
interrupt priority
Memory
Clocks can be gated off from unused peripherals to save power
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32–256 kB Flash, in-system programmable
2 x 12-Bit Analog-to-Digital Converters
8–32 kB SRAM (including 4 kB retention SRAM)
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Up to 28 input channels
External bus interface supports up to 16 MB of external mem-
ory and a parallel LCD interface with QVGA resolution
Up to 250 ksps 12-bit mode or 1 Msps 10-bit mode
Single, simultaneous, and interleaving modes supported
Power Management
Channel sequencer enables automatic multiplexing of multiple
channels without firmware intervention
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Low drop-out (LDO) regulator
Power-on reset circuit and brownout detectors
5-to-3.3 V voltage regulator supports up to 150 mA to drive the
device directly from up to 5 V supply
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Internal VREF or external VREF supported
2 x 10-Bit Digital-to-Analog Converters
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DMA support for waveform generation
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Programmable external regulator supports up to 3.6 V,
1000 mA
Four-word circular buffer to enable 12-bit mode
Multiple power modes supported for low power optimization
16-Channel Capacitance-to-Digital Converter
Clock Sources
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Supports buttons, sliders, wheels, and capacitive proximity
Fast conversion time; <1 µA wake-on-touch average current
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Internal oscillator with PLL: Fine frequency resolution up to
80 MHz; spread-spectrum mode for reduced EMI
Two Low-Current Comparators
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Low power internal oscillator: 20 MHz and 2.5 MHz modes
Integrated 6-bit programmable reference voltage
400 nA current consumption in low power mode
Low frequency internal oscillator: 16.4 kHz
External oscillators: Crystal, RC, C, CMOS and RTC Crystal
Flexible clock divider: Reduce frequency by up to 128x from
any clock source
16-Channel DMA Controller
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Supports ADC, DAC, I2C, I2S, SPI, USART, AES, EPCA,
128/192/256-bit Hardware AES Encryption
capacitive sensing, external triggers, and timers
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Hardware-supported Electronic Codebook (ECB), Cipher-Block
Chaining (CBC) and Counter (CTR) algorithms
Up to 65 Flexible I/O
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Up to 59 contiguous GPIO with two priority crossbars providing
flexibility in pin assignments; 12 x 5 V tolerant GPIO
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All cipher operations can be performed without any firmware
intervention for a set of 4-word blocks (up to 32 kB)
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Up to 6 programmable high drive capable (5–300 mA, 1.8–6 V)
I/O can drive LEDs, power MOSFETs, buzzers, etc.
16/32-bit CRC
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Hardware support for common 32-bit and 16-bit polynomials
Communication Interfaces
Timers/Counters
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2 x USARTs and 2 x UARTs with IrDA and ISO7816 SmartCard
3 x SPIs, 2 x I2C, I2S (receive and transmit)
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2 x 32-bit or 4 x 16-bit timers with capture/compare
2 x 16-bit, 2-channel counters with capture/compare/PWM
On-Chip Debugging
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16-bit, 6-channel counter with capture/compare/PWM and
dead-time controller with differential outputs
16-bit low power timer/pulse counter operational in the lowest
power mode
Serial wire debug (SWD) and JTAG allow for full-speed, non-
intrusive debug
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Serial wire viewer (SWV) available in 64 / 80 / 92-pin packages
Cortex-M3 embedded trace macrocell (ETM) in 80 / 92-pin
packages
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32-bit real time clock (RTC) with multiple alarms
Watchdog timer
Temperature Range: –40 to +85 °C
Package Options
Current-to-Voltage Converter
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Supports up to 6 mA input range
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QFN options: 40-pin (6 x 6 mm), 64-pin (9 x 9 mm)
TQFP options: 64-pin (10 x 10 mm), 80-pin (12 x 12 mm)
LGA option: 92-pin (7 x 7 mm)
Supply Voltage
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2.7 to 5.5 V (regulator enabled)
1.8 to 3.6 V (regulator disabled)
Preliminary Rev. 0.8 2/12
Copyright © 2012 by Silicon Laboratories
SiM3C1xx
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
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