High-Performance Low-Power Precision32™ MCUs

Silicon Labs' High-Performance Low-Power Precision32™ ARM Cortex M3 MCUs family is engineered to make your job easier. This High-Performance, Low-Power Precision32™ Microcontrollers use a patented dual-crossbar architecture that allows designers to choose peripherals and pinout placement without worrying about pre-set limitations and pin conflicts — simplifying PCB routing, minimizing PCB layers, and ultimately reducing design time and system cost. Based on the ARM® Cortex™-M3 core, the new High-Performance, Low-Power Precision32™ Microcontrollers include USB and non-USB devices with 32-256 kB Flash, 8-32 kB RAM, and 40-92 pin packages.

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Description Datasheet Availability Pricing (CRC) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Series
Mounting Style
Package / Case
Core
Program Memory Size
Data Bus Width
ADC Resolution
Maximum Clock Frequency
Number of I/Os
Data RAM Size
Supply Voltage - Min
Supply Voltage - Max
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Packaging
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-32-bit 80 MHz 256 kB USB EMIF MCU
Datasheet
59In Stock
Min.: 1
Mult.: 1

SIM3U167 SMD/SMT LGA-92 ARM Cortex M3 256 kB 32 bit 2 x 12 bit 80 MHz 65 I/O 32 kB 1.8 V 3.6 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-32-bit 80 MHz 256 kB USB MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2 450
Mult.: 2 450

SIM3C164 SMD/SMT QFN-40 ARM Cortex M3 256 kB 32 bit 2 x 12 bit 80 MHz 28 I/O 32 kB 1.8 V 3.6 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-32-bit 80 MHz 64 kB USB MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2 450
Mult.: 2 450

SIM3U144 SMD/SMT QFN-40 ARM Cortex M3 64 kB 32 bit 2 x 12 bit 80 MHz 28 I/O 16 kB 1.8 V 3.6 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-32-bit 80 MHz 128 kB USB MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2 450
Mult.: 2 450

SIM3U154 SMD/SMT QFN-40 ARM Cortex M3 128 kB 32 bit 2 x 12 bit 80 MHz 28 I/O 32 kB 1.8 V 3.6 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU ARM Cortex-32-bit 80 MHz 128 kB USB EMIF MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 300
Mult.: 1 300

SIM3U156 SMD/SMT QFN-64 ARM Cortex M3 128 kB 32 bit 2 x 12 bit 80 MHz 50 I/O 32 kB 1.8 V 3.6 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU ARM Cortex-32-bit 80 MHz 256 kB USB EMIF MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 300
Mult.: 1 300

SIM3U166 SMD/SMT QFN-64 ARM Cortex M3 256 kB 32 bit 2 x 12 bit 80 MHz 50 I/O 32 kB 1.8 V 3.6 V - 40 C + 85 C Tray