EFM8BB31F64I-B-QFN32

Part No :: EFM8BB31F64I-B-QFN32

Manufacturer: Silicon Labs

VIGOR # :: 3628503

Description: IC MCU 8BIT 64KB FLASH 32QFN

Catalog: Embedded - Microcontrollers

DataSheet: EFM8BB31F64I-B-QFN32 PDF

Country of origin: -

Date code: -

EFM8BB31F64I-B-QFN32 Specifications

Type	Description
Series:	Busy Bee
Package:	Tube
Part Status:	Discontinued at Digi-Key
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:	29
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-UFQFN Exposed Pad
Supplier Device Package:	32-QFN (4x4)

Alternative Products

Part Number	Manufacturer & Description	Compare
EFM8BB31F64I-C-QFN32R Match 100%	Silicon Labs IC MCU 8BIT 64KB FLASH 32QFN	EFM8BB31F64I-B-QFN32 vs EFM8BB31F64I-C-QFN32R
EFM8BB31F64I-B-5QFN32R Match 100%	Silicon Labs IC MCU 8BIT 64KB FLASH 32QFN	EFM8BB31F64I-B-QFN32 vs EFM8BB31F64I-B-5QFN32R
EFM8BB31F64I-C-QFN32 Match 100%	Silicon Labs IC MCU 8BIT 64KB FLASH 32QFN	EFM8BB31F64I-B-QFN32 vs EFM8BB31F64I-C-QFN32
EFM8BB31F64I-B-QFN32R Match 100%	Silicon Labs IC MCU 8BIT 64KB FLASH 32QFN	EFM8BB31F64I-B-QFN32 vs EFM8BB31F64I-B-QFN32R

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Delivery time: At the same day (Order deadline is 2pm, HK Time).
Delivery date: usually 2 to 7 working days.
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In Stock: 129

Shipped from

HK warehouse

Expected Shipping Date

Oct 08 - Oct 12 2026

Pricing(USD)

Quantity	Unit Price	Ext. Price
1	~~$1.4309~~	~~$1.43~~
25	~~$1.3145~~	~~$32.86~~
100	~~$1.1949~~	~~$119.49~~
1000	~~$1.0754~~	~~$1 075.40~~

Current price of EFM8BB31F64I-B-QFN32 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

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EFM8BB31F64I-B-QFN32

EFM8BB31F64I-B-QFN32

3628503

Pricing(USD)