Overview
The SP3485EN-L/TR is a 3.3V low power half-duplex transceiver produced by MaxLinear, Inc. This device is designed to meet the specifications of the RS-485 and RS-422 serial protocols, offering high performance and low power consumption. It is part of a family of transceivers that are pin-to-pin compatible with other MaxLinear devices and popular industry standards. The SP3485EN-L/TR operates from a single 3.3V supply and is interoperable with 5.0V logic, making it versatile for various applications.
Key Specifications
| Parameter | Value | Units | Conditions |
|---|---|---|---|
| Supported Protocols | RS-422, RS-485 | - | - |
| Supply Voltage (Nom) | 3.3 | V | - |
| No. of Tx | 1 | - | - |
| No. of Rx | 1 | - | - |
| Duplex | Half | - | - |
| Data Rate (MAX) | 10 | Mbps | - |
| Package | NSOIC-8 | - | - |
| ICC (Max) | 2 | mA | - |
| Typ Shutdown Current | 10 | µA | - |
| Temperature Range | -40 to 85 | °C | - |
| Common-Mode Input Voltage Range | -7V to +12V | V | - |
| Multi-Drop Nodes | 32 | - | - |
Key Features
- Operates from a single +3.3V supply and is interoperable with +5.0V logic.
- Driver/Receiver Enable for flexible control.
- -7V to +12V common-mode input voltage range.
- Allows up to 32 transceivers on the serial bus.
- Compatibility with the industry standard 75176 pinout.
- Driver output short-circuit protection.
- Low power shutdown mode to minimize power consumption.
- Standard fail-safe receiver to maintain a known state during idle or open input conditions.
Applications
The SP3485EN-L/TR is suitable for a variety of applications that require reliable and high-speed serial communication. These include:
- Industrial automation and control systems.
- Building automation and HVAC systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- Point-of-sale terminals and other commercial equipment.
Q & A
- What are the supported protocols for the SP3485EN-L/TR?
The SP3485EN-L/TR supports both RS-422 and RS-485 serial protocols.
- What is the operating supply voltage for the SP3485EN-L/TR?
The device operates from a single +3.3V supply.
- What is the maximum data rate of the SP3485EN-L/TR?
The maximum data rate is 10 Mbps.
- How many transceivers can be connected on the serial bus?
Up to 32 transceivers can be connected on the serial bus.
- What is the temperature range for the SP3485EN-L/TR?
The temperature range is -40°C to 85°C.
- Does the SP3485EN-L/TR have a low power shutdown mode?
Yes, it has a low power shutdown mode that minimizes power consumption.
- What is the common-mode input voltage range for the SP3485EN-L/TR?
The common-mode input voltage range is -7V to +12V.
- Is the SP3485EN-L/TR compatible with industry standard pinouts?
Yes, it is compatible with the industry standard 75176 pinout.
- Does the SP3485EN-L/TR have driver output short-circuit protection?
Yes, it has driver output short-circuit protection.
- What is the package type for the SP3485EN-L/TR?
The package type is NSOIC-8.
