Overview
The P82B715TD,118 is an I2C-bus extender IC produced by NXP USA Inc. This bipolar integrated circuit is designed to extend the practical separation distance between components on an I2C-bus by buffering both the data (SDA) and clock (SCL) lines. This allows for longer cable lengths and increased system capacitance, making it suitable for applications requiring reliable I2C communication over extended distances.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Package | SO8 (Small Outline Package, 8 leads, 1.27 mm pitch, 4.9 mm x 3.9 mm x 1.75 mm body) |
| Supply Voltage Range | 3 V to 12 V |
| Clock Speeds | Up to 100 kHz and 400 kHz |
| Temperature Range | -40 °C to +85 °C |
| ESD Protection | Exceeds 2500 V HBM per Mil. Std 883C-3015.7 and 400 V MM per JESD22-A115 |
| System Capacitance | Up to 3000 pF |
| Cable Length | Approximately 50 meters |
Key Features
- Buffers both I2C-bus data (SDA) and clock (SCL) lines to extend communication distances.
- Reduces cable loading on the linked I2C-buses by a factor of 10.
- Supports clock speeds up to 100 kHz and 400 kHz.
- ESD protection exceeds 2500 V HBM and 400 V MM.
- Internal diodes to VCC and GND for logic signal swing limitation.
- Compatible with all logic signal drivers, including TTL.
- Internal current rise and fall times controlled to minimize interference and ensure stability.
Applications
- I2C-bus systems requiring extended communication distances.
- Industrial automation and control systems.
- Embedded systems and IoT devices.
- Analog radial IPMB shelf applications.
- Any system where reliable I2C communication over long cables is necessary.
Q & A
- What is the primary function of the P82B715TD,118 IC?
The primary function is to extend the practical separation distance between components on an I2C-bus by buffering both the data (SDA) and clock (SCL) lines.
- What is the package type of the P82B715TD,118?
The package type is SO8 (Small Outline Package, 8 leads, 1.27 mm pitch, 4.9 mm x 3.9 mm x 1.75 mm body).
- What is the supply voltage range for the P82B715TD,118?
The supply voltage range is 3 V to 12 V.
- What are the supported clock speeds for the P82B715TD,118?
The supported clock speeds are up to 100 kHz and 400 kHz.
- What is the temperature range for the P82B715TD,118?
The temperature range is -40 °C to +85 °C.
- How does the P82B715TD,118 protect against ESD?
The P82B715TD,118 has ESD protection that exceeds 2500 V HBM per Mil. Std 883C-3015.7 and 400 V MM per JESD22-A115.
- What is the maximum system capacitance supported by the P82B715TD,118?
The maximum system capacitance supported is up to 3000 pF.
- How long can the cable be when using the P82B715TD,118?
The cable length can be approximately 50 meters.
- Is the P82B715TD,118 compatible with TTL logic signal drivers?
Yes, it is compatible with all logic signal drivers, including TTL.
- What is the purpose of the internal diodes in the P82B715TD,118?
The internal diodes are connected between Lx/Sx and VCC to limit the logic signal swing if the applied logic levels would exceed the supply voltage by more than 0.7 V).
