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EFM8BB31F64I-D-QFN32

SiLEFM8BB31F64I-D-QFN32

Silicon Labs
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
2,009 in stock

Overview

The EFM8BB31F64I-D-QFN32 is a high-performance 8-bit microcontroller from Silicon Labs Busy Bee family, featuring a pipelined CIP-51 core running at up to 50 MHz. It integrates 64 kB of flash memory and 4.25 kB of RAM into a compact 4x4 mm QFN32 package, designed for general-purpose applications requiring high throughput and flexible peripheral routing.

Why Choose This Part

This MCU offers exceptional processing efficiency with 70% of its instructions executing in 1-2 clock cycles. The integrated peripheral crossbar allows engineers to map digital functions to any I/O pin, greatly simplifying PCB layout and reducing routing complexity.

Applications

Optical Modules
Used for control and monitoring in SFP and QSFP optical transceivers due to its small footprint and precise analog peripherals.
Sensor Hubs
Collects and processes data from multiple sensors using its 12-bit ADC and flexible peripheral crossbar for efficient routing.
Motor Control Support
Acts as a co-processor for motor control systems using the 6-channel programmable counter array (PCA) for PWM generation.
Consumer Electronics
Handles user interface logic and power management tasks in space-constrained portable devices.

Getting Started

Developers can utilize the Simplicity Studio IDE, which provides pre-configured software libraries and a hardware configuration tool for the EFM8 family. For hardware evaluation, the EFM8BB31 STK (Starter Kit) provides an integrated debugger and access to all MCU pins.

Also Consider

EFM8BB31F64G-D-QFN32 SiLSilicon Labs - Standard temperature range version (-40C to +85C) if the Industrial 'I' grade extended temperature range is not required.
ATmega644PA MCHPMicrochip - Provides 64kB Flash and larger SRAM for applications requiring more data buffering within an 8-bit architecture.