EFM8 Cheapest General Purpose Microcontroller

Busy Bee Common Specs

Pipelined 8-bit C8051 core
5 V tolerant I/O pins
12-bit Analog to Digital converter (ADC)
Up to 4 x 12-bit Digital to Analog converter (DAC)

Two analog comparators
Integrated temperature sensor
Enhanced PWM / PCA
Up to 4 x configurable logic units

16-bit timers
UART, SPI, SMBus/I²C and high speed I2C slave
Priority crossbar for flexible pin mapping

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Part Number

MCU Core

MHz

Flash

RAM

Dig I/O Pins

5 Volt Tolerant

ADC 1

USB

Temp Sensor

Timers (16-bit)

DAC

Comparators

UART

SPI

I2C

HS I2C Slave

I2S

EMIF

CAN

LIN

AES

AEC-Q100

Vdd (min)

Vdd (max)

Package Type

Package Size (mm)

Internal Osc.

VREF

Debug Interface

Temperature Range (ºC)

Industrial

Automotive

PCA Channels

EFM8BB10F2A-QFN20

Dev Kit

8051

0.25

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±2

-40 125

EFM8BB10F2G-QFN20

Buy Sample Dev Kit

8051

0.25

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±2

-40 85

EFM8BB10F2I-QFN20

Buy Sample Dev Kit

8051

0.25

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±2

-40 125

EFM8BB10F4A-QFN20

Sample Dev Kit

8051

0.5

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±2

-40 125

EFM8BB10F4G-QFN20

Buy Sample Dev Kit

8051

0.5

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±2

-40 85

EFM8BB10F4I-QFN20

Buy Sample Dev Kit

8051

0.5

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±2

-40 125

EFM8BB10F8A-QFN20

Dev Kit

8051

0.5

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±2

-40 125

FEATURED

EFM8BB10F8G-QFN20

Buy Sample Dev Kit

8051

0.5

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±2

-40 85

EFM8BB10F8G-QSOP24

Buy Sample Dev Kit

8051

0.5

12-bit, 16-ch.

—

2.2

3.6

QSOP24

8.7x3.9

±2

-40 85

EFM8BB10F8G-SOIC16

Buy Sample Dev Kit

8051

0.5

12-bit, 12-ch.

—

2.2

3.6

SOIC16

9.9x3.9

±2

-40 85

EFM8BB10F8I-QFN20

Buy Sample Dev Kit

8051

0.5

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±2

-40 125

EFM8BB10F8I-QSOP24

Buy Sample Dev Kit

8051

0.5

12-bit, 16-ch.

—

2.2

3.6

QSOP24

8.7x3.9

±2

-40 125

EFM8BB10F8I-SOIC16

Buy Sample Dev Kit

8051

0.5

12-bit, 12-ch.

—

2.2

3.6

SOIC16

9.9x3.9

±2

-40 125

EFM8BB21F16A-QFN20

Dev Kit

8051

2.25

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±1.5

-40 125

EFM8BB21F16G-QFN20

Buy Sample Dev Kit

8051

2.25

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±1.5

-40 85

EFM8BB21F16G-QSOP24

Buy Sample Dev Kit

8051

2.25

12-bit, 20-ch.

—

2.2

3.6

QSOP24

8.7x3.9

±1.5

-40 85

EFM8BB21F16I-QFN20

Buy Sample Dev Kit

8051

2.25

12-bit, 15-ch.

—

2.2

3.6

QFN20

3x3

±1.5

-40 125

EFM8BB21F16I-QSOP24

Buy Sample Dev Kit

8051

2.25

12-bit, 20-ch.

—

2.2

3.6

QSOP24

8.7x3.9

±1.5

-40 125

EFM8BB22F16A-QFN28

Dev Kit

8051

2.25

12-bit, 20-ch.

—

2.2

3.6

QFN28

5x5

±1.5

-40 125

EFM8BB22F16G-QFN28

Buy Sample Dev Kit

8051

2.25

12-bit, 20-ch.

—

2.2

3.6

QFN28

5x5

±1.5

-40 85

EFM8BB22F16I-QFN28

Buy Sample Dev Kit

8051

2.25

12-bit, 20-ch.

—

2.2

3.6

QFN28

5x5

±1.5

-40 125

EFM8BB31F16A-4QFN24

Sample Dev Kit

8051

2.25

12-bit, 12-ch.

12-bit, 2-ch.

2.2

3.6

QFN24

4x4

±2

-40 125

EFM8BB31F16A-5QFN32

Sample Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFN32

5x5

±2

-40 125

EFM8BB31F16G-QFN24

Buy Sample Dev Kit

8051

2.25

12-bit, 12-ch.

12-bit, 2-ch.

2.2

3.6

QFN24

3x3

±2

-40 85

EFM8BB31F16G-QFN32

Buy Sample Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFN32

4x4

±2

-40 85

EFM8BB31F16G-QFP32

Buy Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFP32

7x7

±2

-40 85

EFM8BB31F16G-QSOP24

Buy Dev Kit

8051

2.25

12-bit, 13-ch.

12-bit, 2-ch.

2.2

3.6

QSOP24

8.7x3.9

±2

-40 85

EFM8BB31F16I-4QFN24

Buy Sample Dev Kit

8051

2.25

12-bit, 12-ch.

12-bit, 2-ch.

2.2

3.6

QFN24

4x4

±2

-40 125

EFM8BB31F16I-5QFN32

Buy Sample Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFN32

5x5

±2

-40 125

EFM8BB31F16I-QFN24

Dev Kit

8051

2.25

12-bit, 12-ch.

12-bit, 2-ch.

2.2

3.6

QFN24

3x3

±2

-40 125

EFM8BB31F16I-QFN32

Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFN32

4x4

±2

-40 125

EFM8BB31F16I-QFP32

Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFP32

7x7

±2

-40 125

EFM8BB31F16I-QSOP24

Dev Kit

8051

2.25

12-bit, 13-ch.

12-bit, 2-ch.

2.2

3.6

QSOP24

8.7x3.9

±2

-40 125

EFM8BB31F32A-4QFN24

Sample Dev Kit

8051

2.25

12-bit, 12-ch.

12-bit, 2-ch.

2.2

3.6

QFN24

4x4

±2

-40 125

EFM8BB31F32A-5QFN32

Sample Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFN32

5x5

±2

-40 125

EFM8BB31F32G-QFN24

Buy Sample Dev Kit

8051

2.25

12-bit, 12-ch.

12-bit, 2-ch.

2.2

3.6

QFN24

3x3

±2

-40 85

EFM8BB31F32G-QFN32

Buy Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFN32

4x4

±2

-40 85

EFM8BB31F32G-QFP32

Buy Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFP32

7x7

±2

-40 85

EFM8BB31F32G-QSOP24

Buy Dev Kit

8051

2.25

12-bit, 13-ch.

12-bit, 2-ch.

2.2

3.6

QSOP24

8.7x3.9

±2

-40 85

EFM8BB31F32I-4QFN24

Buy Sample Dev Kit

8051

2.25

12-bit, 12-ch.

12-bit, 2-ch.

2.2

3.6

QFN24

4x4

±2

-40 125

EFM8BB31F32I-5QFN32

Buy Sample Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFN32

5x5

±2

-40 125

EFM8BB31F32I-QFN24

Buy Sample Dev Kit

8051

2.25

12-bit, 12-ch.

12-bit, 2-ch.

2.2

3.6

QFN24

3x3

±2

-40 125

EFM8BB31F32I-QFN32

Buy Sample Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFN32

4x4

±2

-40 125

EFM8BB31F32I-QFP32

Buy Sample Dev Kit

8051

2.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFP32

7x7

±2

-40 125

EFM8BB31F32I-QSOP24

Buy Sample Dev Kit

8051

2.25

12-bit, 13-ch.

12-bit, 2-ch.

2.2

3.6

QSOP24

8.7x3.9

±2

-40 125

EFM8BB31F64A-4QFN24

Sample Dev Kit

8051

4.25

12-bit, 12-ch.

12-bit, 4-ch.

2.2

3.6

QFN24

4x4

±2

-40 125

EFM8BB31F64A-5QFN32

Sample Dev Kit

8051

4.25

12-bit, 20-ch.

12-bit, 4-ch.

2.2

3.6

QFN32

5x5

±2

-40 125

EFM8BB31F64G-QFN24

Buy Dev Kit

8051

4.25

12-bit, 12-ch.

12-bit, 4-ch.

2.2

3.6

QFN24

3x3

±2

-40 85

EFM8BB31F64G-QFN32

Buy Dev Kit

8051

4.25

12-bit, 20-ch.

12-bit, 4-ch.

2.2

3.6

QFN32

4x4

±2

-40 85

EFM8BB31F64G-QFP32

Buy Dev Kit

8051

4.25

12-bit, 20-ch.

12-bit, 4-ch.

2.2

3.6

QFP32

7x7

±2

-40 85

EFM8BB31F64G-QSOP24

Buy Dev Kit

8051

4.25

12-bit, 13-ch.

12-bit, 4-ch.

2.2

3.6

QSOP24

8.7x3.9

±2

-40 85

EFM8BB31F64I-4QFN24

Buy Sample Dev Kit

8051

4.25

12-bit, 12-ch.

12-bit, 4-ch.

2.2

3.6

QFN24

4x4

±2

-40 125

EFM8BB31F64I-5QFN32

Buy Sample Dev Kit

8051

4.25

12-bit, 20-ch.

12-bit, 2-ch.

2.2

3.6

QFN32

5x5

±2

-40 125

EFM8BB31F64I-QFN24

Buy Sample Dev Kit

8051

4.25

12-bit, 12-ch.

12-bit, 4-ch.

2.2

3.6

QFN24

3x3

±2

-40 125

EFM8BB31F64I-QFN32

Buy Sample Dev Kit

8051

4.25

12-bit, 20-ch.

12-bit, 4-ch.

2.2

3.6

QFN32

4x4

±2

-40 125

EFM8BB31F64I-QFP32

Buy Sample Dev Kit

8051

4.25

12-bit, 20-ch.

12-bit, 4-ch.

2.2

3.6

QFP32

7x7

±2

-40 125

EFM8BB31F64I-QSOP24

Buy Sample Dev Kit

8051

4.25

12-bit, 13-ch.

12-bit, 4-ch.

2.2

3.6

QSOP24

8.7x3.9

±2

-40 125

EFM8™ Busy Bee 8-bit Microcontrollers (MCUs)

Busy Bee Common Specs

Status

Part Number	MCU Core	MHz	Flash	RAM	Dig I/O Pins	ADC 1	Timers (16-bit)	DAC	Comparators	UART	SPI	I2C	HS I2C Slave	Vdd (min)	Vdd (max)	Package Type	Package Size (mm)	Internal Osc.	Debug Interface	Temperature Range (ºC)	PCA Channels
EFM8BB10F2A-QFN20 Dev Kit	8051	25	2	0.25	16	12-bit, 15-ch.	4	—	2	1	1	1	0	2.2	3.6	QFN20	3x3	±2	C2	-40 125	3
EFM8BB10F2G-QFN20 Buy Sample Dev Kit	8051	25	2	0.25	16	12-bit, 15-ch.	4	—	2	1	1	1	0	2.2	3.6	QFN20	3x3	±2	C2	-40 85	3
EFM8BB10F2I-QFN20 Buy Sample Dev Kit	8051	25	2	0.25	16	12-bit, 15-ch.	4	—	2	1	1	1	0	2.2	3.6	QFN20	3x3	±2	C2	-40 125	3
EFM8BB10F4A-QFN20 Sample Dev Kit	8051	25	4	0.5	16	12-bit, 15-ch.	4	—	2	1	1	1	0	2.2	3.6	QFN20	3x3	±2	C2	-40 125	3
EFM8BB10F4G-QFN20 Buy Sample Dev Kit	8051	25	4	0.5	16	12-bit, 15-ch.	4	—	2	1	1	1	0	2.2	3.6	QFN20	3x3	±2	C2	-40 85	3
EFM8BB10F4I-QFN20 Buy Sample Dev Kit	8051	25	4	0.5	16	12-bit, 15-ch.	4	—	2	1	1	1	0	2.2	3.6	QFN20	3x3	±2	C2	-40 125	3
EFM8BB10F8A-QFN20 Dev Kit	8051	25	8	0.5	16	12-bit, 15-ch.	4	—	2	1	1	1	0	2.2	3.6	QFN20	3x3	±2	C2	-40 125	3
FEATURED EFM8BB10F8G-QFN20 Buy Sample Dev Kit	8051	25	8	0.5	16	12-bit, 15-ch.	4	—	2	1	1	1	0	2.2	3.6	QFN20	3x3	±2	C2	-40 85	3
EFM8BB10F8G-QSOP24 Buy Sample Dev Kit	8051	25	8	0.5	18	12-bit, 16-ch.	4	—	2	1	1	1	0	2.2	3.6	QSOP24	8.7x3.9	±2	C2	-40 85	3
EFM8BB10F8G-SOIC16 Buy Sample Dev Kit	8051	25	8	0.5	13	12-bit, 12-ch.	4	—	2	1	1	1	0	2.2	3.6	SOIC16	9.9x3.9	±2	C2	-40 85	3
EFM8BB10F8I-QFN20 Buy Sample Dev Kit	8051	25	8	0.5	16	12-bit, 15-ch.	4	—	2	1	1	1	0	2.2	3.6	QFN20	3x3	±2	C2	-40 125	3
EFM8BB10F8I-QSOP24 Buy Sample Dev Kit	8051	25	8	0.5	18	12-bit, 16-ch.	4	—	2	1	1	1	0	2.2	3.6	QSOP24	8.7x3.9	±2	C2	-40 125	3
EFM8BB10F8I-SOIC16 Buy Sample Dev Kit	8051	25	8	0.5	13	12-bit, 12-ch.	4	—	2	1	1	1	0	2.2	3.6	SOIC16	9.9x3.9	±2	C2	-40 125	3
EFM8BB21F16A-QFN20 Dev Kit	8051	50	16	2.25	16	12-bit, 15-ch.	5	—	2	2	1	1	1	2.2	3.6	QFN20	3x3	±1.5	C2	-40 125	3
EFM8BB21F16G-QFN20 Buy Sample Dev Kit	8051	50	16	2.25	16	12-bit, 15-ch.	5	—	2	2	1	1	1	2.2	3.6	QFN20	3x3	±1.5	C2	-40 85	3
EFM8BB21F16G-QSOP24 Buy Sample Dev Kit	8051	50	16	2.25	21	12-bit, 20-ch.	5	—	2	2	1	1	1	2.2	3.6	QSOP24	8.7x3.9	±1.5	C2	-40 85	3
EFM8BB21F16I-QFN20 Buy Sample Dev Kit	8051	50	16	2.25	16	12-bit, 15-ch.	5	—	2	2	1	1	1	2.2	3.6	QFN20	3x3	±1.5	C2	-40 125	3
EFM8BB21F16I-QSOP24 Buy Sample Dev Kit	8051	50	16	2.25	21	12-bit, 20-ch.	5	—	2	2	1	1	1	2.2	3.6	QSOP24	8.7x3.9	±1.5	C2	-40 125	3
EFM8BB22F16A-QFN28 Dev Kit	8051	50	16	2.25	22	12-bit, 20-ch.	5	—	2	2	1	1	1	2.2	3.6	QFN28	5x5	±1.5	C2	-40 125	3
EFM8BB22F16G-QFN28 Buy Sample Dev Kit	8051	50	16	2.25	22	12-bit, 20-ch.	5	—	2	2	1	1	1	2.2	3.6	QFN28	5x5	±1.5	C2	-40 85	3
EFM8BB22F16I-QFN28 Buy Sample Dev Kit	8051	50	16	2.25	22	12-bit, 20-ch.	5	—	2	2	1	1	1	2.2	3.6	QFN28	5x5	±1.5	C2	-40 125	3
EFM8BB31F16A-4QFN24 Sample Dev Kit	8051	50	16	2.25	20	12-bit, 12-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN24	4x4	±2	C2	-40 125	6
EFM8BB31F16A-5QFN32 Sample Dev Kit	8051	50	16	2.25	29	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN32	5x5	±2	C2	-40 125	6
EFM8BB31F16G-QFN24 Buy Sample Dev Kit	8051	50	16	2.25	20	12-bit, 12-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN24	3x3	±2	C2	-40 85	6
EFM8BB31F16G-QFN32 Buy Sample Dev Kit	8051	50	16	2.25	29	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN32	4x4	±2	C2	-40 85	6
EFM8BB31F16G-QFP32 Buy Dev Kit	8051	50	16	2.25	28	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFP32	7x7	±2	C2	-40 85	6
EFM8BB31F16G-QSOP24 Buy Dev Kit	8051	50	16	2.25	21	12-bit, 13-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QSOP24	8.7x3.9	±2	C2	-40 85	6
EFM8BB31F16I-4QFN24 Buy Sample Dev Kit	8051	50	16	2.25	20	12-bit, 12-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN24	4x4	±2	C2	-40 125	6
EFM8BB31F16I-5QFN32 Buy Sample Dev Kit	8051	50	16	2.25	29	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN32	5x5	±2	C2	-40 125	6
EFM8BB31F16I-QFN24 Dev Kit	8051	50	16	2.25	20	12-bit, 12-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN24	3x3	±2	C2	-40 125	6
EFM8BB31F16I-QFN32 Dev Kit	8051	50	16	2.25	29	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN32	4x4	±2	C2	-40 125	6
EFM8BB31F16I-QFP32 Dev Kit	8051	50	16	2.25	28	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFP32	7x7	±2	C2	-40 125	6
EFM8BB31F16I-QSOP24 Dev Kit	8051	50	16	2.25	21	12-bit, 13-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QSOP24	8.7x3.9	±2	C2	-40 125	6
EFM8BB31F32A-4QFN24 Sample Dev Kit	8051	50	32	2.25	20	12-bit, 12-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN24	4x4	±2	C2	-40 125	6
EFM8BB31F32A-5QFN32 Sample Dev Kit	8051	50	32	2.25	29	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN32	5x5	±2	C2	-40 125	6
EFM8BB31F32G-QFN24 Buy Sample Dev Kit	8051	50	32	2.25	20	12-bit, 12-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN24	3x3	±2	C2	-40 85	6
EFM8BB31F32G-QFN32 Buy Dev Kit	8051	50	32	2.25	29	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN32	4x4	±2	C2	-40 85	6
EFM8BB31F32G-QFP32 Buy Dev Kit	8051	50	32	2.25	28	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFP32	7x7	±2	C2	-40 85	6
EFM8BB31F32G-QSOP24 Buy Dev Kit	8051	50	32	2.25	21	12-bit, 13-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QSOP24	8.7x3.9	±2	C2	-40 85	6
EFM8BB31F32I-4QFN24 Buy Sample Dev Kit	8051	50	32	2.25	20	12-bit, 12-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN24	4x4	±2	C2	-40 125	6
EFM8BB31F32I-5QFN32 Buy Sample Dev Kit	8051	50	32	2.25	29	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN32	5x5	±2	C2	-40 125	6
EFM8BB31F32I-QFN24 Buy Sample Dev Kit	8051	50	32	2.25	20	12-bit, 12-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN24	3x3	±2	C2	-40 125	6
EFM8BB31F32I-QFN32 Buy Sample Dev Kit	8051	50	32	2.25	29	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN32	4x4	±2	C2	-40 125	6
EFM8BB31F32I-QFP32 Buy Sample Dev Kit	8051	50	32	2.25	28	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFP32	7x7	±2	C2	-40 125	6
EFM8BB31F32I-QSOP24 Buy Sample Dev Kit	8051	50	32	2.25	21	12-bit, 13-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QSOP24	8.7x3.9	±2	C2	-40 125	6
EFM8BB31F64A-4QFN24 Sample Dev Kit	8051	50	64	4.25	20	12-bit, 12-ch.	6	12-bit, 4-ch.	2	2	1	1	1	2.2	3.6	QFN24	4x4	±2	C2	-40 125	6
EFM8BB31F64A-5QFN32 Sample Dev Kit	8051	50	64	4.25	29	12-bit, 20-ch.	6	12-bit, 4-ch.	2	2	1	1	1	2.2	3.6	QFN32	5x5	±2	C2	-40 125	6
EFM8BB31F64G-QFN24 Buy Dev Kit	8051	50	64	4.25	20	12-bit, 12-ch.	6	12-bit, 4-ch.	2	2	1	1	1	2.2	3.6	QFN24	3x3	±2	C2	-40 85	6
EFM8BB31F64G-QFN32 Buy Dev Kit	8051	50	64	4.25	29	12-bit, 20-ch.	6	12-bit, 4-ch.	2	2	1	1	1	2.2	3.6	QFN32	4x4	±2	C2	-40 85	6
EFM8BB31F64G-QFP32 Buy Dev Kit	8051	50	64	4.25	28	12-bit, 20-ch.	6	12-bit, 4-ch.	2	2	1	1	1	2.2	3.6	QFP32	7x7	±2	C2	-40 85	6
EFM8BB31F64G-QSOP24 Buy Dev Kit	8051	50	64	4.25	21	12-bit, 13-ch.	6	12-bit, 4-ch.	2	2	1	1	1	2.2	3.6	QSOP24	8.7x3.9	±2	C2	-40 85	6
EFM8BB31F64I-4QFN24 Buy Sample Dev Kit	8051	50	64	4.25	20	12-bit, 12-ch.	6	12-bit, 4-ch.	2	2	1	1	1	2.2	3.6	QFN24	4x4	±2	C2	-40 125	6
EFM8BB31F64I-5QFN32 Buy Sample Dev Kit	8051	50	64	4.25	29	12-bit, 20-ch.	6	12-bit, 2-ch.	2	2	1	1	1	2.2	3.6	QFN32	5x5	±2	C2	-40 125	6
EFM8BB31F64I-QFN24 Buy Sample Dev Kit	8051	50	64	4.25	20	12-bit, 12-ch.	6	12-bit, 4-ch.	2	2	1	1	1	2.2	3.6	QFN24	3x3	±2	C2	-40 125	6
EFM8BB31F64I-QFN32 Buy Sample Dev Kit	8051	50	64	4.25	29	12-bit, 20-ch.	6	12-bit, 4-ch.	2	2	1	1	1	2.2	3.6	QFN32	4x4	±2	C2	-40 125	6
EFM8BB31F64I-QFP32 Buy Sample Dev Kit	8051	50	64	4.25	28	12-bit, 20-ch.	6	12-bit, 4-ch.	2	2	1	1	1	2.2	3.6	QFP32	7x7	±2	C2	-40 125	6
EFM8BB31F64I-QSOP24 Buy Sample Dev Kit	8051	50	64	4.25	21	12-bit, 13-ch.	6	12-bit, 4-ch.	2	2	1	1	1	2.2	3.6	QSOP24	8.7x3.9	±2	C2	-40 125	6