PCA9306-Q1 Series

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

Catalog

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

Catalog

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

Key Features

• AEC-Q100 qualified for automotive applicationsTemperature grade 2: –40°C to 105°C, TAHBM ESD classification level H2CDM ESD classification level C4B2-Bit bidirectional translator for SDA and SCL lines in mixed-mode I2C applicationsCompatible with I2C and SMBusLess than 1.5-ns maximum propagation delay to accommodate standard-mode and fast-mode I2C devices and multiple controllersAllows voltage-level translation between1.2-V VREF1and 1.8-V, 2.5-V, 3.3-V, or 5-V VREF21.8-V VREF1and 2.5-V, 3.3-V, or 5-V VREF22.5-V VREF1and 3.3-V, or 5-V VREF23.3-V VREF1and 5-V VREF2Provides bidirectional voltage translation with no direction pinLow 3.5-Ω ON-state connection between input and output ports provides less signal distortionOpen-drain I2C I/O Ports (SCL1, SDA1, SCL2, and SDA2)5-V tolerant I2C I/O ports to support mixed-mode signal operationHigh-impedance SCL1, SDA1, SCL2, and SDA2 pins for EN = lowLock-up-free operation for isolation when EN = LowFlow-through pinout for ease of printed-circuit board trace routingLatch-up performance exceeds 100 mA Per JESD 78, Class IIESD protection exceeds JESD 222000-V Human-body model (A114-A)200-V Machine model (A115-A)1000-V Charged-device model (C101)AEC-Q100 qualified for automotive applicationsTemperature grade 2: –40°C to 105°C, TAHBM ESD classification level H2CDM ESD classification level C4B2-Bit bidirectional translator for SDA and SCL lines in mixed-mode I2C applicationsCompatible with I2C and SMBusLess than 1.5-ns maximum propagation delay to accommodate standard-mode and fast-mode I2C devices and multiple controllersAllows voltage-level translation between1.2-V VREF1and 1.8-V, 2.5-V, 3.3-V, or 5-V VREF21.8-V VREF1and 2.5-V, 3.3-V, or 5-V VREF22.5-V VREF1and 3.3-V, or 5-V VREF23.3-V VREF1and 5-V VREF2Provides bidirectional voltage translation with no direction pinLow 3.5-Ω ON-state connection between input and output ports provides less signal distortionOpen-drain I2C I/O Ports (SCL1, SDA1, SCL2, and SDA2)5-V tolerant I2C I/O ports to support mixed-mode signal operationHigh-impedance SCL1, SDA1, SCL2, and SDA2 pins for EN = lowLock-up-free operation for isolation when EN = LowFlow-through pinout for ease of printed-circuit board trace routingLatch-up performance exceeds 100 mA Per JESD 78, Class IIESD protection exceeds JESD 222000-V Human-body model (A114-A)200-V Machine model (A115-A)1000-V Charged-device model (C101)

Description

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. 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.