Overview
The SP485EEN-L/TR is a half-duplex RS-485 and RS-422 transceiver manufactured by MaxLinear, Inc. This device is designed to meet the electrical and timing specifications of the TIA/EIA-485-A standard. It features enhanced ESD performance, low-power operation, and advanced EMI suppression architecture, making it suitable for a variety of industrial and commercial applications. The transceiver is available in an 8-pin NSOIC package and supports data rates up to 10 Mbps in half-duplex mode.
Key Specifications
| Specification | Value |
|---|---|
| Supported Protocols | RS-422, RS-485 |
| Supply Voltage (Nominal) | 5 V |
| Number of Transmitters | 1 |
| Number of Receivers | 1 |
| Duplex Mode | Half-Duplex |
| Data Rate (Maximum) | 10 Mbps |
| HBM ESD Tolerance | 15 kV |
| IEC 61000-4-2 Contact ESD Tolerance | 8 kV |
| Multi-Drop Nodes | 32 |
| Temperature Range | -40°C to 85°C |
| Package Type | 8-Pin NSOIC |
| Lead Shape | Gull-wing |
| Mounting Type | Surface Mount |
Key Features
- Enhanced ESD performance: Human Body Model (HBM) ESD tolerance of 15 kV and IEC 61000-4-2 contact ESD tolerance of 8 kV.
- Low-power operation: Automatic disable of inactive drivers and low shutdown current.
- Advanced EMI suppression architecture: Low EMI and fast data rates up to 10 Mbps in half-duplex mode.
- Independent high-speed driver enable/disable control.
- Low 20 pF line load capacitance.
- Rx Fail-Safe feature.
Applications
- Industrial automation and control systems.
- Fieldbus networks, such as PROFIBUS and other serial communication protocols.
- Commercial and industrial data communication systems requiring RS-485 and RS-422 compatibility.
- Embedded systems and IoT devices that need reliable serial communication.
- Automotive and aerospace applications where robust ESD protection is necessary.
Q & A
- What protocols does the SP485EEN-L/TR support? The SP485EEN-L/TR supports both RS-422 and RS-485 protocols.
- What is the maximum data rate of the SP485EEN-L/TR? The maximum data rate is 10 Mbps in half-duplex mode.
- What is the ESD tolerance of the SP485EEN-L/TR? The device has an HBM ESD tolerance of 15 kV and IEC 61000-4-2 contact ESD tolerance of 8 kV.
- What is the operating temperature range of the SP485EEN-L/TR? The operating temperature range is -40°C to 85°C.
- What package type is the SP485EEN-L/TR available in? The device is available in an 8-pin NSOIC package.
- Does the SP485EEN-L/TR support multi-drop configurations? Yes, it supports up to 32 multi-drop nodes.
- What is the supply voltage for the SP485EEN-L/TR? The nominal supply voltage is 5 V.
- Is the SP485EEN-L/TR RoHS compliant? Yes, the device is RoHS compliant.
- What is the lead shape of the SP485EEN-L/TR? The lead shape is gull-wing.
- Does the SP485EEN-L/TR have a low-power shutdown mode? Yes, it features a low-power shutdown mode with automatic disable of inactive drivers.
