Overview
The PCA9306DC1,125, produced by NXP USA Inc., is a dual bidirectional I²C-bus and SMBus voltage-level translator. This component is designed to facilitate communication between devices operating at different voltage levels, making it a crucial element in mixed-mode I²C applications. The PCA9306DC1,125 features an enable (EN) input and supports voltage translations between 1.2 V and 5.5 V, ensuring seamless communication across various voltage domains.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range (VREF1) | 1.0 to 3.6 | V |
| Operating Voltage Range (VREF2) | 1.8 to 5.5 | V |
| Enable Input (EN) | Active Low | |
| ESD Protection | 2000-V Human-body model, 1000-V Charged-device model | |
| Latch-up Performance | Exceeds 100 mA (JESD 78, class II) | |
| Switching Speed | tPLH: 0 to 1.2 ns, tPHL: 0 to 1.3 ns (depending on load capacitance) | ns |
| Package Type | SC-70, SOT-353 |
Key Features
- Dual bidirectional I²C-bus and SMBus voltage-level translator
- Operational from 1.2 V to 3.3 V (VREF1) and 1.8 V to 5.5 V (VREF2)
- Enable (EN) input for controlling the translation
- Lockup-free operation when EN is low
- Flow-through pinout for easy PCB trace routing
- High ESD protection (2000-V Human-body model, 1000-V Charged-device model)
- Latch-up performance exceeds 100 mA (JESD 78, class II)
Applications
- I²C, SMBus, PMBus, MDIO, UART, low-speed SDIO, GPIO, and other two-signal interfaces
- Servers and data centers
- Telecom switching equipment and routers
- Personal computers and laptops
- Industrial automation systems
Q & A
- What is the PCA9306DC1,125 used for?
The PCA9306DC1,125 is used as a dual bidirectional I²C-bus and SMBus voltage-level translator, enabling communication between devices operating at different voltage levels. - What are the operating voltage ranges for VREF1 and VREF2?
VREF1 operates from 1.0 V to 3.6 V, and VREF2 operates from 1.8 V to 5.5 V. - What is the function of the enable (EN) input?
The enable (EN) input is used to control the translation and is active low. - What level of ESD protection does the PCA9306DC1,125 offer?
The component offers 2000-V Human-body model and 1000-V Charged-device model ESD protection. - What are some common applications of the PCA9306DC1,125?
Common applications include servers, routers, personal computers, and industrial automation systems. - Does the PCA9306DC1,125 support latch-up protection?
Yes, it exceeds 100 mA latch-up performance (JESD 78, class II). - What is the switching speed of the PCA9306DC1,125?
The switching speed is typically in the range of 0 to 1.2 ns for tPLH and 0 to 1.3 ns for tPHL, depending on the load capacitance. - What package types are available for the PCA9306DC1,125?
The component is available in SC-70 and SOT-353 packages. - Is the PCA9306DC1,125 compatible with other bus protocols besides I²C and SMBus?
Yes, it is compatible with PMBus, MDIO, UART, low-speed SDIO, GPIO, and other two-signal interfaces. - How does the flow-through pinout benefit PCB design?
The flow-through pinout simplifies PCB trace routing, making the design process easier.
