Overview
The PCA9515AD/G-T is a BiCMOS integrated circuit designed by NXP Semiconductors for use in I²C-bus and SMBus systems. This component serves as an I²C-bus repeater, enabling the extension of the I²C-bus by buffering both the data (SDAn) and the clock (SCLn) lines. This allows for the isolation of two halves of a bus, thereby accommodating more devices or longer bus lengths. The PCA9515AD/G-T is particularly useful in applications where the standard I²C-bus capacitance limit of 400 pF restricts the number of devices or bus length.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Manufacturer Part Number | PCA9515AD/G-T | |||
| Manufacturer | NXP Semiconductors / Freescale | |||
| Description | IC REDRIVER I2C 1CH 400KHZ 8SO | |||
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | |||
| Voltage - Supply | 2.3 V | 3.3 V | 3.6 V | V |
| Operating Temperature | -40°C | 85°C | °C | |
| Number of Channels | 1 | |||
| Data Rate (Max) | 400 kHz | |||
| Current - Supply | 800 µA | µA | ||
| Capacitance - Input | 6 pF | 7 pF | pF | |
| ESD Protection | 2000 V HBM | V |
Key Features
- Bidirectional buffer for I²C-bus and SMBus systems
- Supports Standard-mode and Fast-mode I²C-bus devices and multiple masters
- Lock-up free operation, supports arbitration and clock stretching across the repeater
- Active HIGH repeater enable input
- Open-drain input/outputs
- Powered-off high-impedance I²C-bus pins
- Operating supply voltage range of 2.3 V to 3.6 V
- 5.5 V tolerant I²C-bus (SCLn, SDAn) and enable (EN) pins
- ESD protection exceeds 2000 V HBM per JESD22-A114
Applications
- I²C-bus and SMBus systems
- Extension of I²C-bus to accommodate more devices or longer bus lengths
- Isolation of two halves of a bus
- Running two buses, one at 5 V and the other at 3.3 V, or a 400 kHz and 100 kHz bus
Q & A
- What is the primary function of the PCA9515AD/G-T?
The PCA9515AD/G-T is an I²C-bus repeater designed to extend the I²C-bus by buffering both the data and clock lines, allowing for more devices or longer bus lengths.
- What is the operating voltage range of the PCA9515AD/G-T?
The operating supply voltage range is from 2.3 V to 3.6 V.
- What is the maximum data rate supported by the PCA9515AD/G-T?
The maximum data rate supported is 400 kHz.
- Does the PCA9515AD/G-T support multiple masters?
Yes, it supports multiple masters and arbitration and clock stretching across the repeater.
- What kind of ESD protection does the PCA9515AD/G-T have?
The PCA9515AD/G-T has ESD protection that exceeds 2000 V HBM per JESD22-A114.
- What is the package type of the PCA9515AD/G-T?
The package type is 8-SOIC (0.154", 3.90mm Width).
- What is the operating temperature range of the PCA9515AD/G-T?
The operating temperature range is from -40°C to 85°C.
- Can the PCA9515AD/G-T be used in applications with different voltage levels?
Yes, it can be used to run two buses, one at 5 V and the other at 3.3 V.
- Does the PCA9515AD/G-T have open-drain input/outputs?
Yes, it has open-drain input/outputs.
- Is the PCA9515AD/G-T compatible with both Standard-mode and Fast-mode I²C-bus devices?
Yes, it is compatible with both Standard-mode and Fast-mode I²C-bus devices.
