Integrated Circuits (ICs)

PCA9306DQER

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2-BIT BIDIRECTIONAL 400-KHZ I2C/SMBUS VOLTAGE LEVEL TRANSLATOR

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Search across all available documentation for this part.

DocumentsPCA9306 Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator datasheet (Rev. O)PCA9306 I2C Buffer Evaluation Module +13

Integrated Circuits (ICs)

PCA9306DQER

Active

Texas Instruments

2-BIT BIDIRECTIONAL 400-KHZ I2C/SMBUS VOLTAGE LEVEL TRANSLATOR

Deep-Dive with AI

DocumentsPCA9306 Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator datasheet (Rev. O)PCA9306 I2C Buffer Evaluation Module +13

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	PCA9306DQER

Channel Type	Bidirectional
Channels per Circuit	2
Features	Auto-Direction Sensing
Mounting Type	Surface Mount
Number of Circuits	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	Open Drain, Push-Pull
Package / Case	8-XFDFN
Supplier Device Package	8-X2SON (1.4x1)
Translator Type	Voltage Level
Voltage - VCCA [Max] [custom]	3.3 V
Voltage - VCCA [Min] [custom]	1.2 V
Voltage - VCCB [Max]	5.5 V
Voltage - VCCB [Min]	1.8 V

PCA9306-Q1 Series

Automotive 2-bit bidirectional 400-kHz I2C/SMBus voltage level translator

Part	Voltage - VCCB [Min]	Voltage - VCCB [Max]	Channel Type	Supplier Device Package	Translator Type	Channels per Circuit	Number of Circuits	Features	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Voltage - VCCA [Max] [custom]	Voltage - VCCA [Min] [custom]	Package / Case	Qualification	Grade	Package / Case [y]	Package / Case [y]
Texas Instruments PCA9306DCTTG4	1.8 V	5.5 V	Bidirectional	SM8	Voltage Level	2	1	Auto-Direction Sensing	Open Drain Push-Pull	105 °C	-40 °C	Surface Mount	3.3 V	1.2 V
Texas Instruments PCA9306DCTRG4	1.8 V	5.5 V	Bidirectional	SM8	Voltage Level	2	1	Auto-Direction Sensing	Open Drain Push-Pull	105 °C	-40 °C	Surface Mount	3.3 V	1.2 V
Texas Instruments PCA9306DQER	1.8 V	5.5 V	Bidirectional	8-X2SON (1.4x1)	Voltage Level	2	1	Auto-Direction Sensing	Open Drain Push-Pull	85 °C	-40 °C	Surface Mount	3.3 V	1.2 V	8-XFDFN
Texas Instruments PCA9306IDCURQ1	1.8 V	5.5 V	Bidirectional		Voltage Level	2	1	Auto-Direction Sensing	Open Drain Push-Pull	85 °C	-40 °C	Surface Mount	3.3 V	1.2 V	8-VFSOP	AEC-Q100	Automotive	2.3 mm	0.091 in
Texas Instruments PCA9306DCURE4	1.8 V	5.5 V	Bidirectional		Voltage Level	2	1	Auto-Direction Sensing	Open Drain Push-Pull	105 °C	-40 °C	Surface Mount	3.3 V	1.2 V	8-VFSOP			2.3 mm	0.091 in
Texas Instruments PCA9306DCTTE4	1.8 V	5.5 V	Bidirectional	SM8	Voltage Level	2	1	Auto-Direction Sensing	Open Drain Push-Pull	105 °C	-40 °C	Surface Mount	3.3 V	1.2 V
Texas Instruments PCA9306DCTR	1.8 V	5.5 V	Bidirectional	SM8	Voltage Level	2	1	Auto-Direction Sensing	Open Drain Push-Pull	105 °C	-40 °C	Surface Mount	3.3 V	1.2 V
Texas Instruments PCA9306DCURG4	1.8 V	5.5 V	Bidirectional		Voltage Level	2	1	Auto-Direction Sensing	Open Drain Push-Pull	105 °C	-40 °C	Surface Mount	3.3 V	1.2 V	8-VFSOP			2.3 mm	0.091 in
Texas Instruments PCA9306DCTT	1.8 V	5.5 V	Bidirectional	SM8	Voltage Level	2	1	Auto-Direction Sensing	Open Drain Push-Pull	105 °C	-40 °C	Surface Mount	3.3 V	1.2 V
Texas Instruments PCA9306DCTRE4	1.8 V	5.5 V	Bidirectional	SM8	Voltage Level	2	1	Auto-Direction Sensing	Open Drain Push-Pull	105 °C	-40 °C	Surface Mount	3.3 V	1.2 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.61
		10	$ 0.43
		25	$ 0.38
		100	$ 0.34
		250	$ 0.31
		500	$ 0.30
		1000	$ 0.29
		2500	$ 0.32
	Digi-Reel®	1	$ 0.61
		10	$ 0.43
		25	$ 0.38
		100	$ 0.34
		250	$ 0.31
		500	$ 0.30
		1000	$ 0.29
		2500	$ 0.32
	Tape & Reel (TR)	5000	$ 0.27
		10000	$ 0.26
		15000	$ 0.26
		25000	$ 0.25
		35000	$ 0.25
Texas Instruments	LARGE T&R	1	$ 0.55
		100	$ 0.37
		250	$ 0.29
		1000	$ 0.19

Description

General part information

PCA9306-Q1 Series

The PCA9306 device is a dual bidirectional I 2C and SMBus voltage-level translator with an enable (EN) input, and is operational from 1.2-V to 3.3-V V REF1 and 1.8-V to 5.5-V V REF2.

The PCA9306 device allows bidirectional voltage translations between 1.2 V and 5 V, without the use of a direction pin. The low ON-state resistance (R ON) of the switch allows connections to be made with minimal propagation delay. When EN is high, the translator switch is ON, and the SCL1 and SDA1 I/O are connected to the SCL2 and SDA2 I/O, respectively, allowing bidirectional data flow between ports. When EN is low, the translator switch is off, and a high-impedance state exists between ports.

In addition to voltage translation, the PCA9306 device can be used to isolate a 400-kHz bus from a 100-kHz bus by controlling the EN pin to disconnect the slower bus during fast-mode communication.