PCA9306-Q1 Texas instruments

PCA9306-Q1

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PCA9306-Q1

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Описание

This dual bidirectional I2C and SMBus voltage-level translator, with an enable (EN) input, is operational from 1.2-V to 3.3-V VREF1 and 1.8-V to 5.5-V VREF2.The PCA9306-Q1 allows bidirectional voltage translations between 1.2 V and 5 V, without the use of a direction pin. The low ON-state resistance (ron) 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.

AEC-Q100 qualified for automotive applications
- Temperature grade 2: –40°C to 105°C, T_A
- HBM ESD classification level H2
- CDM ESD classification level C4B
2-Bit bidirectional translator for SDA and SCL lines in mixed-mode I²C applications
Compatible with I²C and SMBus
Less than 1.5-ns maximum propagation delay to accommodate standard-mode and fast-mode I²C devices and multiple controllers
Allows voltage-level translation between
- 1.2-V V_REF1 and 1.8-V, 2.5-V, 3.3-V, or 5-V V_REF2
- 1.8-V V_REF1 and 2.5-V, 3.3-V, or 5-V V_REF2
- 2.5-V V_REF1 and 3.3-V, or 5-V V_REF2
- 3.3-V V_REF1 and 5-V V_REF2
Provides bidirectional voltage translation with no direction pin
Low 3.5-Ω ON-state connection between input and output ports provides less signal distortion
Open-drain I²C I/O Ports (SCL1, SDA1, SCL2, and SDA2)
5-V tolerant I²C I/O ports to support mixed-mode signal operation
High-impedance SCL1, SDA1, SCL2, and SDA2 pins for EN = low
Lock-up-free operation for isolation when EN = Low
Flow-through pinout for ease of printed-circuit board trace routing
Latch-up performance exceeds 100 mA Per JESD 78, Class II
ESD protection exceeds JESD 22
- 2000-V Human-body model (A114-A)
- 200-V Machine model (A115-A)
- 1000-V Charged-device model (C101)

Features	Enable pin
Frequency (max) (MHz)	0.4
VCCA (min) (V)	1.2
VCCA (max) (V)	5.5
VCCB (min) (V)	1.8
VCCB (max) (V)	5.5
Supply restrictions	VCCA
Rating	Automotive
Operating temperature range (°C)	-40 to 105