Overview
The PCA9306GD1,125 is a dual bidirectional I²C-bus and SMBus voltage-level translator produced by NXP USA Inc. 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 with an enable (EN) input and supports voltage translations between 1.0 V and 5.5 V without the need for a direction pin. The PCA9306GD1,125 is known for its low ON-state resistance and minimal propagation delay, ensuring efficient and reliable data transmission.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Voltage (Vref(1)) | 1.0 | - | 3.6 | V |
| Operating Voltage (Vbias(ref)(2)) | 1.8 | - | 5.5 | V |
| Propagation Delay (tPLH) | 0 | - | 1.5 | ns |
| Propagation Delay (tPHL) | 0 | - | 1.5 | ns |
| Input Capacitance (Ci(EN)) | - | 7.1 | - | pF |
| Off-State Input/Output Capacitance (Cio(off)) | - | 4 | 6 | pF |
| On-State Input/Output Capacitance (Cio(on)) | - | 2.0 | - | pF |
| Operating Temperature | -40 | - | 105 | °C |
Key Features
- Dual bidirectional translator for SDA and SCL lines in mixed-mode I²C-bus applications.
- Compatible with Standard-mode, Fast-mode, and Fast-mode Plus I²C-bus and SMBus.
- Low ON-state resistance (Ron) for minimal propagation delay.
- Flow-through pinout for ease of printed-circuit-board trace routing.
- Lockup-free operation for isolation when EN is low.
- ESD protection exceeds JESD 22 – 2000-V Human-body model and 1000-V Charged-device model.
- Latch-up performance exceeds 100 mA per JESD 78, class II.
Applications
- I²C, SMBus, PMBus, MDIO, UART, low-speed SDIO, GPIO, and other two-signal interfaces.
- Servers and data centers.
- Routers and telecom switching equipment.
- Personal computers.
- Industrial automation systems.
Q & A
- What is the PCA9306GD1,125 used for?
The PCA9306GD1,125 is used as a dual bidirectional I²C-bus and SMBus voltage-level translator in mixed-mode applications. - What are the operating voltage ranges for the PCA9306GD1,125?
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 propagation delay of the PCA9306GD1,125?
The propagation delay (tPLH and tPHL) is less than 1.5 ns. - Does the PCA9306GD1,125 have ESD protection?
Yes, it exceeds JESD 22 – 2000-V Human-body model and 1000-V Charged-device model. - What is the operating temperature range of the PCA9306GD1,125?
The operating temperature range is from -40 °C to +105 °C. - Is the PCA9306GD1,125 compatible with different I²C-bus modes?
Yes, it is compatible with Standard-mode, Fast-mode, and Fast-mode Plus I²C-bus and SMBus. - What are some common applications of the PCA9306GD1,125?
It is used in servers, routers, personal computers, and industrial automation systems. - Does the PCA9306GD1,125 have a flow-through pinout?
Yes, it has a flow-through pinout for ease of printed-circuit-board trace routing. - What is the latch-up performance of the PCA9306GD1,125?
It exceeds 100 mA per JESD 78, class II. - How does the enable (EN) input function on the PCA9306GD1,125?
When EN is HIGH, the translator switch is on, connecting SCL1 and SDA1 I/O to SCL2 and SDA2 I/O, respectively.
