embedded-processors-controllers

EFM8BB10F2A

Full part number: EFM8BB10F2A-A-QFN20

Key datasheet specifications and the closest alternatives, ranked by parametric similarity and grounded in the manufacturer datasheet.

01 — Overview

This datasheet covers the Silicon Labs EFM8BB1 Busy Bee family of 8-bit microcontrollers, listing over a dozen part numbers across G, I, and A temperature grades in QSOP24, SOIC16, and QFN20 packages. The document serves to define the scope, features, and ordering information for these versatile MCUs designed for space-constrained embedded applications like motor control and medical equipment. Key parameters include a pipelined CIP-51 core running up to 25 MHz, up to 8 KB of reprogrammable flash memory with 512 bytes of RAM, and a single power supply range of 2.2 to 3.6 V. Additional highlights are an 18-pin multifunction I/O port, a 12-bit ADC, four 16-bit timers, and comprehensive serial interfaces including UART, SPI, and SMBus/I2C.

02 — Key specifications

Datasheet parameters

ParameterMinTypMaxConditions
quiescent current — 4.45 mA 4.85 mA FSYSCLK = 24.5 MHz2
output voltage 1.62 V 1.65 V 1.68 V 1.65 V Setting
supply voltage range 2.2 V — 3.6 V
cmrr — 70 dB —
operating temperature -40 °C — 125 °C
clock frequency 0 Hz — 25 MHz
operating frequency 0 Hz — 702 kHz
psrr — 70 dB —
cpu speed — 25 MHz —
program memory size — 2 kB —
ram size — 256 B —
io count — 16 —
adc resolution — 12 bit —
core size — 8 bit —
program erase cycles 20 kcycle 100 kcycle —
output voltage low — 250 mV 330 mV IOL = 10 mA-10 °C ≤ TA≤ 60 °CVDD = 3.0 VGuaranteed by characterization
03 — Alternatives

Closest matches to EFM8BB10F2A

EFM8BB21F16A-C-QFN20 9.0× higher ram size, 8.0× higher program memory size, 2.4× higher output voltage low
EFM8BB21F16G 9.0× higher ram size, 8.0× higher program memory size, 2.4× higher output voltage low
EFM8BB51F16G-C-QFN20 17.8× lower quiescent current, 10.0× lower operating frequency, 8.0× higher program memory size
MSP430FR2310 7.8× higher ram size, 5.3× lower supply voltage range, 3.1× lower cpu speed
ATmega48PA 2.0× higher program memory size, 2.0× higher ram size, 1.6× higher clock frequency
MSPM0G3505SDGS28 16.0× higher program memory size, 4.0× higher core size, 3.2× higher cpu speed
PIC12F1571 17.1× higher operating frequency, 5.0× lower cpu speed, 2.4× higher output voltage low
MSP430F155IPM 8.2× higher program memory size, 3.1× lower cpu speed, 2.0× higher core size
04 — FAQ

Frequently asked questions

What is the ADC resolution?

The ADC resolution is 12 bit.

What is the maximum clock frequency of the EFM8BB10F2A-A-QFN20?

The maximum clock frequency is 25 MHz.

What is the common-mode rejection ratio (CMRR) of the EFM8BB10F2A-A-QFN20?

The common-mode rejection ratio (CMRR) is 70 dB.

What is the core size of the EFM8BB10F2A-A-QFN20?

The core size is 8 bit.

What is the maximum CPU speed of the EFM8BB10F2A-A-QFN20?

The maximum CPU speed is 25 MHz.

What is the I/O count for the EFM8BB10F2A-A-QFN20?

The I/O count is 16.

What is the operating frequency of the EFM8BB10F2A-A-QFN20?

The operating frequency is 702 kHz.

What is the maximum operating temperature for the EFM8BB10F2A-A-QFN20?

The maximum operating temperature is 125 °C.

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