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DS18B20BME280

Structured comparison

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Comparison of DS18B20, BME280
Attribute	DS18B20DS18B20	BME280BME280
Overview
Manufacturer	Analog Devices (Maxim)	Bosch Sensortec
Category	Temperature	Pressure
Object type	ic	module
Package	TO-92	Breakout Board
Documented pins	3	4
Interfaces	Digital, 1-Wire	I2C
Lifecycle	ACTIVE	ACTIVE
Physical pin mapping	Unknown	Unknown
Browser simulation	Not available	Not available
Electrical
Active Supply Current	1.5 mASource During an active temperature conversion.	360 µASource Bosch datasheet: peak current during a measurement.
Sleep Supply Current	1 µASource Idle/standby, ~1µA.	100 nASource
Operating Voltage	3 – 5.5 VSource	Varies by vendor The bare die is 1.71-3.6V and NOT 5V tolerant, but most breakouts (GY-BME280, Adafruit, SparkFun...) add an onboard regulator/level shifter — check your specific board before assuming 5V is safe. When in doubt, 3.3V always works.
Interface
Interface	onewireSource	i2cSource The die also supports SPI (3- or 4-wire), but this record models the common 4-pin I2C-only breakout.
I2C Address(es)	Unknown	0x76, 0x77Source Address is 0x76 (SDO low) or 0x77 (SDO high) — check the breakout's default.
Performance
Measures	temperatureSource	temperature, humidity, pressureSource
Range Min	-55°CSource	-40°C / 0%RH / 300hPaSource
Range Max	125°CSource	85°C / 100%RH / 1100hPaSource
Accuracy	±0.5°C (-10°C to +85°C); looser outside that bandSource	±0.5°C (0-65°C) / ±3%RH / ±1.0hPa absolute; ±0.12hPa relative (700-900hPa, 25-40°C)Source
Resolution	9-12 bit configurable (0.5°C to 0.0625°C), default 12-bitSource	0.01°C / 0.008%RH / 0.18PaSource
Sampling Rate	1.33 HzSource A 12-bit conversion takes up to 750ms (~1.3/sec); faster at lower resolution (9-bit ≈93.75ms).	Unknown
Physical
Package	TO-92Source Also commonly sold repackaged into a waterproof stainless-steel probe on a cable — same die, same electrical spec.	Breakout Board
Length	Unknown	Varies by vendor The Bosch die is a fixed 2.5×2.5×0.93mm LGA, but breakout PCB size varies a lot between vendors (commonly 11×11mm to 15×12mm).
Mounting	tht	module
Thermal
Min Operating Temp	-55 °CSource	-40 °CSource
Max Operating Temp	125 °CSource	85 °CSource

Overview

Manufacturer

DS18B20: Analog Devices (Maxim)
BME280: Bosch Sensortec

Object type

DS18B20: ic
BME280: module

Package

DS18B20: TO-92
BME280: Breakout Board

Documented pins

DS18B20: 3
BME280: 4

Interfaces

DS18B20: Digital, 1-Wire
BME280: I2C

Lifecycle

DS18B20: ACTIVE
BME280: ACTIVE

Physical pin mapping

DS18B20: Unknown
BME280: Unknown

Browser simulation

DS18B20: Not available
BME280: Not available

Electrical

Active Supply Current

DS18B20: 1.5 mASource
During an active temperature conversion.
BME280: 360 µASource
Bosch datasheet: peak current during a measurement.

Sleep Supply Current

DS18B20: 1 µASource
Idle/standby, ~1µA.
BME280: 100 nASource

Operating Voltage

DS18B20: 3 – 5.5 VSource
BME280: Varies by vendor
The bare die is 1.71-3.6V and NOT 5V tolerant, but most breakouts (GY-BME280, Adafruit, SparkFun...) add an onboard regulator/level shifter — check your specific board before assuming 5V is safe. When in doubt, 3.3V always works.

Interface

DS18B20: onewireSource
BME280: i2cSource
The die also supports SPI (3- or 4-wire), but this record models the common 4-pin I2C-only breakout.

I2C Address(es)

DS18B20: Unknown
BME280: 0x76, 0x77Source
Address is 0x76 (SDO low) or 0x77 (SDO high) — check the breakout's default.

Performance

Measures

DS18B20: temperatureSource
BME280: temperature, humidity, pressureSource

Range Min

DS18B20: -55°CSource
BME280: -40°C / 0%RH / 300hPaSource

Range Max

DS18B20: 125°CSource
BME280: 85°C / 100%RH / 1100hPaSource

Accuracy

DS18B20: ±0.5°C (-10°C to +85°C); looser outside that bandSource
BME280: ±0.5°C (0-65°C) / ±3%RH / ±1.0hPa absolute; ±0.12hPa relative (700-900hPa, 25-40°C)Source

Resolution

DS18B20: 9-12 bit configurable (0.5°C to 0.0625°C), default 12-bitSource
BME280: 0.01°C / 0.008%RH / 0.18PaSource

Sampling Rate

DS18B20: 1.33 HzSource
A 12-bit conversion takes up to 750ms (~1.3/sec); faster at lower resolution (9-bit ≈93.75ms).
BME280: Unknown

Physical

Package

DS18B20: TO-92Source
Also commonly sold repackaged into a waterproof stainless-steel probe on a cable — same die, same electrical spec.
BME280: Breakout Board

Length

DS18B20: Unknown
BME280: Varies by vendor
The Bosch die is a fixed 2.5×2.5×0.93mm LGA, but breakout PCB size varies a lot between vendors (commonly 11×11mm to 15×12mm).

Mounting

DS18B20: tht
BME280: module

Thermal

Min Operating Temp

DS18B20: -55 °CSource
BME280: -40 °CSource

Max Operating Temp

DS18B20: 125 °CSource
BME280: 85 °CSource

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Compare electronics parts

Choose 2–4 parts

Structured comparison

Overview

Manufacturer

Category

Object type

Package

Documented pins

Interfaces

Lifecycle

Physical pin mapping

Browser simulation

Electrical

Active Supply Current

Sleep Supply Current

Operating Voltage

Interface

Interface

I2C Address(es)

Performance

Measures

Range Min

Range Max

Accuracy

Resolution

Sampling Rate

Physical

Package

Length

Mounting

Thermal

Min Operating Temp

Max Operating Temp