EFM8BB52F32G-C-QFN32R

Microcontrollers Overview

The EFM8BB52F32G-C-QFN32R is an 8-bit microcontroller from Silicon Labs' Busy Bee family, utilizing the CIP-51 8051 core. It features 32 KB of in-system programmable Flash memory and 2.25 KB of RAM. The device operates at a maximum frequency of 50 MHz with a supply voltage range of 1.8 V to 5.5 V. It includes 16 multifunction I/O pins, all capable of 5 V tolerance. Integrated peripherals include one 12-bit SAR ADC, two analog comparators, three PCA PWM channels, four 16-bit timers, and two UARTs with SMBus/I2C and SPI support.

Microcontrollers Feature Summary

• Supports 5 V tolerant I/O pins for direct interfacing with legacy logic levels without level shifting.
• Integrates advanced analog peripherals including a 12-bit SAR ADC and dual analog comparators within a compact package.
• Provides flexible pin mapping via priority crossbar architecture to optimize board layout and minimize package size.

Microcontrollers Applications

• Battery-operated devices requiring low-latency processing and extended voltage range
• Space-constrained embedded systems needing high peripheral integration
• Industrial control applications utilizing 5 V compatible interfaces

Microcontrollers Procurement Notes

Verify the specific suffix 'QFN32R' corresponds to the reel packaging format required for automated assembly. Confirm the operating temperature grade 'I' indicates industrial range specifications. Ensure the datasheet version matches the production lot for accurate electrical characteristics and timing parameters.

Microcontrollers Selection Notes

Select this component when a cost-effective 8-bit solution requires 5 V I/O compatibility alongside high-resolution analog conversion. It serves as a suitable upgrade path for designs transitioning from older 8-bit architectures while maintaining pin count efficiency. Consider the 50 MHz performance ceiling against application latency requirements.

Microcontrollers Part Context

This part belongs to the EFM8BB5 series, designed as a versatile general-purpose MCU. It bridges the gap between basic 8-bit controllers and more complex 32-bit platforms, offering significant analog and communication integration in small form factors like QFN32.

Microcontrollers Replacement Considerations

EFM8BB52F32G-C-QFN32 is the tape-and-reel equivalent. EFM8BB51 variants offer reduced Flash capacity. Cross-family migration to EFM8BB31 requires verification of voltage range and I/O voltage tolerance differences.