SiM3U167-B-GDI
High-Performance, Low-Power, 32-Bit Precision32™
USB MCU Family with up to 256 kB of Flash Die in Wafer Form
32-bit ARM® Cortex™-M3 CPU
Analog Peripherals
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80 MHz maximum frequency
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2 x 12-Bit Analog-to-Digital Converters: Up to 250 ksps 12-bit
mode or 1 Msps 10-bit mode, internal or external reference
2 x 10-Bit Current-mode Digital-to-Analog Converters, four-
word buffer enables 12-bit operation
Single-cycle multiplication, hardware division support
Nested vectored interrupt control (NVIC) with 16 priority levels
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Memory
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2 x Low-current comparators
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32–256 kB Flash, in-system programmable
16-Channel Capacitance-to-Digital: Fast, <1 µA wake-on-touch
2 x Current-to-Voltage Converter, up to 6 mA input range
8–32 kB SRAM (including 4 kB retention SRAM)
16-channel DMA controller
Digital and Communication Peripherals
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External bus interface supports up to 16 MB of external mem-
ory and a parallel LCD interface with QVGA resolution
USB 2.0-compliant full speed with 10 endpoints, 2 kB buffer,
oscillator with automatic frequency correction, and transceiver;
no external components needed
Power Management
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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), 16/32-bit CRC
128/192/256-bit Hardware AES Encryption
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Low drop-out (LDO) regulator
Power-on reset circuit and brownout detectors
5–3.3 V 150 mA regulator supports direct USB power
Adjustable external regulator supports up to 3.6 V, 1000 mA
Multiple power modes supported for low power optimization
Timers/Counters
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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
Low Power Features
16-bit, 6-channel counter with capture/compare/PWM and
dead-time controller with differential outputs
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85 nA current mode with voltage supply monitor enabled
Low-current RTC: 350 nA internal LFO, 620 nA external crystal
10 µs wakeup (lowest power mode); 1.5 µs analog setting time
275 µA/MHz active current
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16-bit low power timer/pulse counter operational in sleep
32-bit real time clock (RTC) with multiple alarms
Watchdog timer
Clocks can be gated off from unused peripherals to save power
Flexible clock divider: Reduce operational frequency up to 128x
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
Clock Sources
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Internal oscillator with PLL: 23-80 MHz, reduced EMI mode
USB internal 48 MHz oscillator supports crystal-less operation
Low power internal oscillator: 20 MHz and 2.5 MHz modes
Low frequency internal oscillator: 16.4 kHz
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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.
On-Chip Debugging
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Serial wire debug (SWD) or JTAG (no boundary scan), serial
wire viewer (SWV)
External oscillators: Crystal, RC, C, CMOS and RTC Crystal
Supply Voltage
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Cortex-M3 embedded trace macrocell (ETM)
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2.7 to 5.5 V (regulator enabled)
Full Technical Data Sheet
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1.8 to 3.6 V (regulator disabled)
SiM3U1xx
Temperature Range: –40 to +85 °C
Power
Core / Memory / Support
ARM Cortex M3 (80 MHz)
Analog Peripherals
5 V In, 3.3 V Out LDO
(Direct Power From USB)
2 x SAR ADC
(12-bit 250 ksps / 10-bit 1 Msps)
32/64/128/256 kB Flash
8/16/32 kB SRAM w/ 4kB Retention
16-Channel DMA Controller
Watchdog
Voltage Reference
1.8 V Internal LDO
(Internal Logic and Memory Power)
2 x Current-Source DAC
External 1A Regulator
Power Management Unit
Supply Monitor
2 x Low Current Comparators
2 x Current-to-Voltage Converter
16-Channel Capacitive Sense
Serial Wire / JTAG / ETM
Clocking / Oscillators
Digital Peripherals
80 MHz PLL
I2S TX/RX
2 x I2C
3 x SPI
AES
CRC
48 MHz USB Oscillator
2 x 32-bit Timers (4 x 16-bit)
Real-Time Clock w/ Dedicated Crystal
16 kHz Low Frequency Oscillator
20 MHz Low Power Oscillator
External Oscillator Drive
2 x UART, 2 x USART w/ IrDA/SmartCard
6-Channel Enhanced PWM
USB 2.0
Full-Speed
MAC/PHY
2 x 2-Channel Standard PWM
Low-Power Timer
External Parallel I/F
Rev. 1.1 5/14
Copyright © 2014 by Silicon Laboratories
SiM3U167-B-GDI
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