EFM8BB31F64I-B-QFP32R

Part No :: EFM8BB31F64I-B-QFP32R

Manufacturer: Silicon Labs

VIGOR # :: 3631925

Description: IC MCU 8BIT 64KB FLASH 32QFP

Catalog: Embedded - Microcontrollers

DataSheet: EFM8BB31F64I-B-QFP32R PDF

Country of origin: Confirming

Date code: TBC

EFM8BB31F64I-B-QFP32R Specifications

Type	Description
Series:	Busy Bee
Package:	Tape & Reel (TR)
Part Status:	Not For New Designs
Core Processor:	CIP-51 8051
Core Size:	8-Bit
Speed:	50MHz
Connectivity:	I²C, SMBus, SPI, UART/USART
Peripherals:	Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O:	28
Program Memory Size:	64KB (64K x 8)
Program Memory Type:	FLASH
EEPROM Size:	-
RAM Size:	4.25K x 8
Voltage - Supply (Vcc/Vdd):	2.2V ~ 3.6V
Data Converters:	A/D 20x10/12b SAR; D/A 4x12b
Oscillator Type:	Internal
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	32-TQFP
Supplier Device Package:	32-QFP (7x7)

Alternative Products

Part Number	Manufacturer & Description	Compare
EFM8BB31F64I-B-QFP32 Match 100%	Silicon Labs IC MCU 8BIT 64KB FLASH 32QFP	EFM8BB31F64I-B-QFP32R vs EFM8BB31F64I-B-QFP32
EFM8BB31F64I-C-QFP32R Match 100%	Silicon Labs IC MCU 8BIT 64KB FLASH 32QFP	EFM8BB31F64I-B-QFP32R vs EFM8BB31F64I-C-QFP32R
EFM8BB31F64I-C-QFP32 Match 100%	Silicon Labs IC MCU 8BIT 64KB FLASH 32QFP	EFM8BB31F64I-B-QFP32R vs EFM8BB31F64I-C-QFP32

Please confirm the specifications of the products when ordering.
MOQ means the minimum order quantity required to purchase each parts.
If you have special order instructions,please note it on the ordering pages.
The Pre-Shipment Inspection (PSI) will be applied.
You can email us to change the order details before shipment.
Orders cannot be canceled after shipping the packages.

TT in advance (bank transfer), Credit Card, PayPal can be chosen.
Cash transfer only. (Transfer with checks and bills are not accepted.)
Customer is responsible for paying all possible charges,including sales tax, VAT and customs charges,etc.
If you need the detailed invoice or tax ID,please email us.

FedEx, DHL, and UPS can be selected.
You can select whether to charge shipping fee by your shipping account or to charge by our side.
Please confirm with the logistics company in advance if you are in a remote area. (It may cost extra fees (35-50 USD) for delivery at those areas.)
The shopping cart will automatically calculate the shipping cost.
Delivery time: At the same day (Order deadline is 2pm, HK Time).
Delivery date: usually 2 to 7 working days.
It is unable to appoint a date of delivery.
Tracking number will be sent once your order has been shipped. (It may take up to 24 hours before carriers display the info.)

In Stock: 252

Shipped from

HK warehouse

Expected Shipping Date

Nov 14 - Nov 18 2026

Pricing(USD)

Quantity	Unit Price	Ext. Price
1	~~$1.6301~~	~~$1.63~~
500	~~$1.4819~~	~~$740.97~~

Current price of EFM8BB31F64I-B-QFP32R is for reference only, if you want to get best price, please submit a inquiry or direct email to our sales team sales@Vigorcomp.com

Hot Products

S912ZVML31F1WKFR

IC MCU 16BIT 32KB FLASH 48LQFP

EFM32GG12B410F1024IQ64-A

IC MCU 32BIT 1MB FLASH 64TQFP

PIC16F15355-I/SP

IC MCU 8BIT 14KB FLASH 28SPDIP

EFM8BB31F64I-B-QFP32R

EFM8BB31F64I-B-QFP32R

3631925

Pricing(USD)