Overview
The PCA9306GF,115, produced by NXP USA Inc., is a dual bidirectional I²C-bus and SMBus voltage-level translator. This component is designed to facilitate voltage level translation between different voltage domains, making it an essential tool in mixed-mode I²C-bus applications. It operates with an enable (EN) input and supports voltage ranges from 1.0 V to 3.6 V (Vref(1)) and 1.8 V to 5.5 V (Vbias(ref)(2)).
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Vref(1) | Operating Voltage Range | 1.0 | - | 3.6 | V |
| Vbias(ref)(2) | Operating Voltage Range | 1.8 | - | 5.5 | V |
| tPLH | LOW to HIGH Propagation Delay | 0 | 1.2 | 2.0 | ns |
| tPHL | HIGH to LOW Propagation Delay | 0 | 1.5 | 2.5 | ns |
| Ci(EN) | Input Capacitance on Pin EN | - | 7.1 | - | pF |
| Cio(off) | Off-state Input/Output Capacitance | - | 4 | 6 | pF |
| Cio(on) | On-state Input/Output Capacitance | - | 2.0 | 0.75 | pF |
| Tamb | Operating Temperature Range | -40 | - | 105 | °C |
| Package | - | - | - | 8-XFDFN | - |
Key Features
- Dual bidirectional I²C-bus and SMBus voltage-level translator with an enable (EN) input.
- Operates from 1.0 V to 3.6 V (Vref(1)) and 1.8 V to 5.5 V (Vbias(ref)(2)).
- Supports Standard-mode, Fast-mode, and Fast-mode Plus I²C-bus and SMBus.
- Less than 1.5 ns maximum propagation delay to accommodate various I²C-bus devices and multiple controllers.
- Allows voltage level translation between different voltage domains (e.g., 1.0 V to 5 V).
- Low ON-state resistance (Ron) for minimal propagation delay.
- High-impedance state when the translator switch is off (EN is LOW).
Applications
- Mixed-mode I²C-bus applications requiring voltage level translation between different voltage domains.
- Systems where two buses operate at different frequencies (e.g., one at 400 kHz and the other at 100 kHz).
- Protection of less ESD-resistant devices by isolating them when the translator is disabled.
- Embedded systems, consumer electronics, and industrial automation where I²C-bus communication is used across different voltage levels.
Q & A
- What is the PCA9306GF,115 used for?
The PCA9306GF,115 is used as a dual bidirectional I²C-bus and SMBus voltage-level translator, facilitating communication between devices operating at different voltage levels.
- What are the operating voltage ranges for the PCA9306GF,115?
The component operates from 1.0 V to 3.6 V (Vref(1)) and 1.8 V to 5.5 V (Vbias(ref)(2)).
- What are the propagation delays for the PCA9306GF,115?
The propagation delays are less than 1.5 ns for both LOW to HIGH and HIGH to LOW transitions.
- What is the package type of the PCA9306GF,115?
The package type is 8-XFDFN.
- What are the supported I²C-bus modes for the PCA9306GF,115?
The component supports Standard-mode, Fast-mode, and Fast-mode Plus I²C-bus and SMBus.
- How does the enable (EN) input function?
When EN is HIGH, the translator switch is on, allowing bidirectional data flow. When EN is LOW, the translator switch is off, and a high-impedance state exists between ports.
- Can the PCA9306GF,115 operate with different bus frequencies?
Yes, it can operate with two buses at different frequencies (e.g., one at 400 kHz and the other at 100 kHz), but the lower frequency bus must be isolated during the higher frequency operation.
- What is the operating temperature range for the PCA9306GF,115?
The operating temperature range is from -40°C to +105°C.
- Does the PCA9306GF,115 provide any protection for less ESD-resistant devices?
Yes, it protects less ESD-resistant devices by isolating them when the translator is disabled.
- What are some common applications for the PCA9306GF,115?
Common applications include mixed-mode I²C-bus systems, embedded systems, consumer electronics, and industrial automation.
