Overview
The PCA9306USG, produced by onsemi, is a dual bidirectional I2C and SMBus voltage-level translator. This device is designed to facilitate voltage translation between two different voltage domains, making it an essential component in mixed-mode I2C applications. It operates with an enable (EN) input and supports voltage translations between 1.2 V and 5.5 V without the need for a direction pin. The PCA9306USG is known for its low ON-state resistance, minimal propagation delay, and lockup-free operation, ensuring reliable data communication between different voltage levels.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Translator Type | Voltage Level | Voltage Level Translator |
| Channel Type | Bidirectional | Bidirectional |
| Number of Circuits | 1 | 1 |
| Channels per Circuit | 2 | 2 (SDA and SCL) |
| Voltage - VCCA | 1 V ~ 3.6 V | 1.2 V to 3.3 V (VREF1), 1.8 V to 5.5 V (VREF2) |
| Input Voltage Range | -0.5 V to 7 V | -0.5 V to 7 V |
| Maximum Junction Temperature | 125 °C | 125 °C |
| ESD Protection | 2000-V Human-body model, 1000-V Charged-device model | 2000-V Human-body model, 1000-V Charged-device model |
| Package Type | SSOP, VSSOP, X2SON, DSBGA | SSOP, VSSOP, X2SON, DSBGA |
Key Features
- Bidirectional Voltage Translation: Allows bidirectional voltage translations between 1.2 V and 5.5 V without a direction pin.
- Low ON-State Resistance: Minimal propagation delay due to low ON-state resistance.
- Lockup-Free Operation: Ensures reliable data communication by preventing bus lockup.
- Flow-Through Pinout: Simplifies printed-circuit-board trace routing.
- ESD Protection: Exceeds JESD 22 standards for Human-body and Charged-device models.
- I2C and SMBus Compatibility: Compatible with I2C, SMBus, PMBus, MDIO, UART, and other two-signal interfaces.
Applications
- Servers and Routers: Used in telecom switching equipment and server applications.
- Personal Computers: Utilized in various PC components for voltage translation.
- Industrial Automation: Employed in industrial automation systems for reliable data communication.
- Other Interfaces: Suitable for I2C, SMBus, PMBus, MDIO, UART, low-speed SDIO, GPIO, and other two-signal interfaces.
Q & A
- What is the primary function of the PCA9306USG?
The PCA9306USG is a dual bidirectional I2C and SMBus voltage-level translator, facilitating voltage translation between different voltage domains.
- What is the operating voltage range for the PCA9306USG?
The device operates with VREF1 from 1.2 V to 3.3 V and VREF2 from 1.8 V to 5.5 V.
- Does the PCA9306USG require a direction pin for voltage translation?
No, the PCA9306USG does not require a direction pin for voltage translation.
- What are the key features of the PCA9306USG?
Key features include bidirectional voltage translation, low ON-state resistance, lockup-free operation, flow-through pinout, and ESD protection.
- What types of interfaces is the PCA9306USG compatible with?
The PCA9306USG is compatible with I2C, SMBus, PMBus, MDIO, UART, low-speed SDIO, GPIO, and other two-signal interfaces.
- What are some common applications of the PCA9306USG?
Common applications include servers, routers, personal computers, and industrial automation systems.
- What is the maximum junction temperature for the PCA9306USG?
The maximum junction temperature is 125 °C.
- What kind of ESD protection does the PCA9306USG offer?
The PCA9306USG offers ESD protection exceeding JESD 22 standards for Human-body and Charged-device models.
- What package types are available for the PCA9306USG?
The device is available in SSOP, VSSOP, X2SON, and DSBGA packages.
- How does the PCA9306USG prevent bus lockup?
The PCA9306USG ensures lockup-free operation when the enable (EN) input is low.
