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EFM8SB20F32G-A-QFN32 Datasheet(PDF) 2 Page - Silicon Laboratories |
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EFM8SB20F32G-A-QFN32 Datasheet(HTML) 2 Page - Silicon Laboratories |
2 / 49 page 1. Feature List The EFM8SB2 highlighted features are listed below. • Core: • Pipelined CIP-51 Core • Fully compatible with standard 8051 instruction set • 70% of instructions execute in 1-2 clock cycles • 25 MHz maximum operating frequency • Memory: • Up to 64 kB flash memory, in-system re-programmable from firmware. • Up to 4352 bytes RAM (including 256 bytes standard 8051 RAM and 4096 bytes on-chip XRAM) • Power: • Internal LDO regulator for CPU core voltage • Power-on reset circuit and brownout detectors • I/O: Up to 24 total multifunction I/O pins: • Flexible peripheral crossbar for peripheral routing • 5 mA source, 12.5 mA sink allows direct drive of LEDs • Clock Sources: • Internal 20 MHz low power oscillator with ±10% accuracy • Internal 24.5 MHz precision oscillator with ±2% accuracy • External RTC 32 kHz crystal • External crystal, RC, C, and CMOS clock options • Timers/Counters and PWM: • 32-bit Real Time Clock (RTC) • 6-channel programmable counter array (PCA) supporting PWM, capture/compare, and frequency output modes with watchdog timer function • 4 x 16-bit general-purpose timers • Communications and Digital Peripherals: • UART • 2 x SPI™ Master / Slave • SMBus™/I2C™ Master / Slave • External Memory Interface (EMIF) • 16-bit/32-bit CRC unit, supporting automatic CRC of flash at 1024-byte boundaries • Analog: • Programmable current reference (IREF0) • 10-Bit Analog-to-Digital Converter (ADC0) • 2 x Low-current analog comparators • On-Chip, Non-Intrusive Debugging • Full memory and register inspection • Four hardware breakpoints, single-stepping • Pre-loaded UART bootloader • Temperature range -40 to 85 ºC • Single power supply 1.8 to 3.6 V • QFP32, QFN32, and QFN24 packages With on-chip power-on reset, voltage supply monitor, watchdog timer, and clock oscillator, the EFM8SB2 devices are truly standalone system-on-a-chip solutions. The flash memory is reprogrammable in-circuit, providing non-volatile data storage and allowing field up- grades of the firmware. The on-chip debugging interface (C2) allows non-intrusive (uses no on-chip resources), full speed, in-circuit debugging using the production MCU installed in the final application. This debug logic supports inspection and modification of memory and registers, setting breakpoints, single stepping, and run and halt commands. All analog and digital peripherals are fully functional while debugging. Each device is specified for 1.8 to 3.6 V operation and is available in 24-pin QFN, 32-pin QFN, or 32-pin QFP pack- ages. All package options are lead-free and RoHS compliant. EFM8SB2 Data Sheet Feature List silabs.com | Smart. Connected. Energy-friendly. Rev. 1.1 | 1 |
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