Overview
The PCA9306DP1,125, 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 part of mixed-mode I²C-bus applications. It operates within a wide voltage range, from 1.0 V to 3.6 V (Vref(1)) and 1.8 V to 5.5 V (Vbias(ref)(2)), allowing for seamless communication between devices with different voltage requirements.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Vref(1) | Operating Voltage | 1.0 | - | 3.6 | V |
| Vbias(ref)(2) | Operating Voltage | 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 | - | pF |
| Tamb | Operating Temperature Range | -40 | - | 105 | °C |
Key Features
- Bidirectional Translation: Allows bidirectional voltage translations between 1.0 V and 5 V without the use of a direction pin.
- Compatibility: Compatible with Standard-mode, Fast-mode, and Fast-mode Plus I²C-bus and SMBus protocols.
- Low Propagation Delay: Less than 1.5 ns maximum propagation delay to accommodate various I²C-bus devices and multiple controllers.
- Enable Input: Features an enable (EN) input to control the translator switch.
- ESD Protection: Protects less ESD-resistant devices when the translator switch is enabled.
- Operating Voltage Range: Operational from 1.0 V to 3.6 V (Vref(1)) and 1.8 V to 5.5 V (Vbias(ref)(2)).
Applications
The PCA9306DP1,125 is suitable for a variety of applications where mixed-mode I²C-bus voltage level translation is required. These include:
- Mixed-Voltage Systems: Systems where different components operate at different voltage levels.
- Embedded Systems: Microcontroller-based systems that need to communicate with peripherals at different voltage levels.
- Industrial Automation: Devices that require communication between modules operating at different voltages.
- Consumer Electronics: Devices such as smartphones, tablets, and other portable electronics that may have components operating at different voltages.
Q & A
- What is the PCA9306DP1,125 used for?
The PCA9306DP1,125 is a dual bidirectional I²C-bus and SMBus voltage-level translator used for voltage level translation between different voltage domains in mixed-mode I²C-bus applications.
- What are the operating voltage ranges of the PCA9306DP1,125?
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 is the maximum propagation delay of the PCA9306DP1,125?
The maximum propagation delay is less than 1.5 ns.
- Is the PCA9306DP1,125 compatible with Fast-mode Plus I²C-bus?
Yes, it is compatible with Standard-mode, Fast-mode, and Fast-mode Plus I²C-bus and SMBus protocols.
- Does the PCA9306DP1,125 have ESD protection?
Yes, it protects less ESD-resistant devices when the translator switch is enabled.
- What is the operating temperature range of the PCA9306DP1,125?
The operating temperature range is from -40°C to +105°C.
- What package types are available for the PCA9306DP1,125?
It is available in TSSOP8, XSON8, and X2SON8 packages.
- Can the PCA9306DP1,125 be used in industrial automation?
Yes, it can be used in industrial automation for devices that require communication between modules operating at different voltages.
- Is the PCA9306DP1,125 suitable for consumer electronics?
Yes, it is suitable for consumer electronics such as smartphones and tablets that may have components operating at different voltages.
- How does the enable (EN) input function on the PCA9306DP1,125?
The enable (EN) input controls the translator switch; when EN is HIGH, the translator switch is on, connecting the SCL1 and SDA1 I/O to the SCL2 and SDA2 I/O, respectively.
