Overview
The P82B96DPZ, manufactured by NXP USA Inc., is a dual bidirectional bus buffer integrated circuit designed to facilitate non-latching, bidirectional logic interfaces between I2C-bus and various other bus configurations. This IC enables seamless communication between I2C-bus logic signals and other buses with different voltage and current levels, such as 350 μA SMBus, 3.3 V logic devices, and up to 15 V levels. It is particularly useful for improving noise immunity on longer bus lengths without restricting normal I2C-bus protocols or clock speeds.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VCC (Supply Voltage) | Operating | 2.0 | - | 15 | V |
| VSx, VSy (Voltage on pin Sx/Sy) | - | -0.3 | - | 15 | V |
| Tamb (Ambient Temperature) | Operating | -40 | - | 85 | °C |
| Tstg (Storage Temperature) | - | -55 | - | 125 | °C |
| ISx, ISy (Static Output Loading on I2C-bus) | VSx, VSy = 1.0 V; VRx, VRy = LOW | 0.2 | - | 30 | mA |
| ISx, ISy (Dynamic Output Sink Capability on I2C-bus) | VSx, VSy = 2 V; VRx, VRy = LOW | 7 | - | 18 | mA |
| ISx, ISy (Leakage Current on I2C-bus) | VSx, VSy = 5 V; VRx, VRy = HIGH | - | - | 10 | μA |
Key Features
- Supports bidirectional data transfer between I2C-bus and other bus configurations with different voltage and current levels (2 V to 15 V).
- Enhances noise immunity on longer bus lengths without affecting I2C-bus protocols or clock speeds.
- High current sink capability for driving low-impedance or high-capacitive buses.
- Allows for longer cables and more devices per I2C bus by isolating bus capacitance.
- ESD protection exceeds JESD 22 standards.
- Compatible with optoelectrical isolators and similar devices.
Applications
- Long-distance I2C communications.
- Galvanic I2C isolation.
- Industrial communications.
- HDMI DDC device information.
- Systems requiring interface between I2C buses operating at different logic levels.
Q & A
- What is the primary function of the P82B96DPZ IC?
The P82B96DPZ is a dual bidirectional bus buffer that facilitates communication between I2C-bus and other bus configurations with different voltage and current levels. - What is the operating voltage range of the P82B96DPZ?
The operating voltage range is from 2 V to 15 V. - How does the P82B96DPZ improve noise immunity?
It improves noise immunity by allowing longer bus lengths and isolating bus capacitance without affecting I2C-bus protocols or clock speeds. - What is the maximum ambient temperature for the P82B96DPZ?
The maximum ambient temperature is 85°C. - Does the P82B96DPZ support ESD protection?
Yes, it exceeds JESD 22 standards for ESD protection. - Can the P82B96DPZ be used in industrial communications?
Yes, it is suitable for industrial communications. - How many devices can be connected to the I2C bus using the P82B96DPZ?
The P82B96DPZ allows for more devices per I2C bus by isolating bus capacitance. - What are the package options available for the P82B96DPZ?
Package options include SO8, TSSOP8, and others as specified in the datasheet. - Can the P82B96DPZ be used for HDMI DDC device information?
Yes, it can be used for HDMI DDC device information. - Is the P82B96DPZ compatible with optoelectrical isolators?
Yes, it is compatible with optoelectrical isolators and similar devices.
