Overview
The TCA39306DCUR is a dual bidirectional voltage-level translator designed by Texas Instruments. This device is specifically tailored for mixed-mode I2C applications, supporting standard-mode, fast-mode, and fast-mode plus I2C and SMBus compatibility. It operates within a voltage range of 0.9V to 5.5V, allowing for voltage-level translation between various voltage levels such as 0.9V to 5V. The TCA39306DCUR features an enable (EN) input and is compatible with I2C, SMBus, and I3C protocols. It is particularly useful in systems requiring reliable data transmission over I2C communication, especially in harsh environments with high noise or temperature variations.
Key Specifications
| Product Status | Translator Type | Channel Type | Voltage - VCCA | Voltage - VCCB | Output Type | Operating Temperature | Package / Case | Mounting Type | Supply Voltage - Min | Supply Voltage - Max | Minimum Operating Temperature | Maximum Operating Temperature | Propagation Delay Time | Brand | Product Category |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Active | Voltage Level | Bidirectional | 0.85 V ~ 5.5 V | 1.65 V ~ 5.5 V | Open Drain | -40°C ~ 125°C (TA) | VSSOP-8 | Surface Mount | 850 mV | 5.5 V | -40°C | +125°C | 46 ns | Texas Instruments | Translation - Voltage Levels |
Key Features
- Operates from 0.9V to 3.3V VREF1 and 1.8V to 5.5V VREF2.
- 8-bit bidirectional translator for SDA and SCL lines in mixed-mode I2C applications.
- Standard-mode, fast-mode, and fast-mode plus I2C and SMBus compatibility.
- Voltage-level translation between various voltage levels such as 0.9V to 5V.
- Low power consumption.
- Compact package size (VSSOP-8).
- 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.
- Lockup-free operation for isolation when EN = Low.
- Flow-through pinout for ease of printed-circuit-board trace routing.
- ESD protection exceeds JESD 22 (2000-V human-body model and 1000-V charged-device model).
Applications
The TCA39306DCUR is commonly used in various applications that require reliable data transmission over I2C communication, particularly in harsh environments. Some of the key application areas include:
- Industrial automation systems.
- Automotive electronics.
- Building automation systems).
- Medical devices).
- Consumer electronics).
- Routers (telecom switching equipment) and personal computers).
Q & A
- What is the TCA39306DCUR used for?
The TCA39306DCUR is a dual bidirectional voltage-level translator used in mixed-mode I2C applications to provide voltage-level translation between different voltage levels.
- What voltage ranges does the TCA39306DCUR support?
The device operates from 0.9V to 3.3V VREF1 and 1.8V to 5.5V VREF2.
- What types of I2C modes does the TCA39306DCUR support?
The TCA39306DCUR supports standard-mode, fast-mode, and fast-mode plus I2C and SMBus compatibility.
- What is the package type of the TCA39306DCUR?
The TCA39306DCUR comes in an 8-pin VSSOP (Very Small Outline Package) package.
- What is the operating temperature range of the TCA39306DCUR?
The operating temperature range is from -40°C to 125°C.
- Does the TCA39306DCUR have ESD protection?
Yes, the device has ESD protection that exceeds JESD 22 standards (2000-V human-body model and 1000-V charged-device model).
- How does the enable (EN) input function on the TCA39306DCUR?
When the EN input is high, the translator switch is ON, allowing bidirectional data flow between ports. When the EN input is low, the translator switch is off, and a high-impedance state exists between ports.
- What are some common applications of the TCA39306DCUR?
Common applications include industrial automation systems, automotive electronics, building automation systems, medical devices, and consumer electronics.
- Does the TCA39306DCUR support I3C protocol?
Yes, the TCA39306DCUR is compatible with I3C protocol in addition to I2C and SMBus.
- What is the propagation delay time of the TCA39306DCUR?
The propagation delay time is approximately 46 ns.
- Is the TCA39306DCUR RoHS compliant?
Yes, the TCA39306DCUR is RoHS compliant.
