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SP3485CP from SP

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SP3485CP

Manufacturer: SP, SIPEX

3.3V Low Power Half-Duplex RS-485 Transceivers with 10Mbps Data Rate

Partnumber Manufacturer Quantity Availability
SP3485CP SP, SIPEX 7809 In Stock

Description and Introduction

3.3V Low Power Half-Duplex RS-485 Transceivers with 10Mbps Data Rate The SP3485CP is a low-power half-duplex RS-485 transceiver manufactured by Exar Corporation (now part of MaxLinear).  

### **Specifications:**  
- **Supply Voltage:** 3.3V  
- **Data Rate:** Up to 10 Mbps  
- **Operating Temperature Range:** 0°C to +70°C  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **Half-Duplex Communication**  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Low Power Consumption:**  
  - **Supply Current (Active Mode):** 1.5 mA (typical)  
  - **Supply Current (Shutdown Mode):** 1 µA (typical)  
- **Package:** 8-pin SOIC  

### **Descriptions:**  
- The SP3485CP is designed for RS-485 and RS-422 communication in industrial and commercial applications.  
- It supports half-duplex communication, allowing bidirectional data transmission over a single twisted-pair cable.  
- The device features a low-power shutdown mode to conserve energy in battery-operated systems.  

### **Features:**  
- **3.3V Operation** – Compatible with 3.3V logic levels.  
- **Enhanced ESD Protection** – Protects against electrostatic discharge.  
- **Driver Output Short-Circuit Protection** – Ensures reliability in fault conditions.  
- **Receiver Open-Circuit Fail-Safe** – Ensures a logic-high output when inputs are open.  
- **Industry-Standard Pinout** – Compatible with similar RS-485 transceivers.  

The SP3485CP is commonly used in industrial automation, building control, and point-of-sale systems.

Application Scenarios & Design Considerations

3.3V Low Power Half-Duplex RS-485 Transceivers with 10Mbps Data Rate

Alternative Part Number

  • MAX485CPA+ --: Industry-standard pin-compatible RS-485 transceiver in DIP-8, widely available and functionally equivalent to the SP3485CP.
  • SN75176BP --: Classic RS-485 differential bus transceiver in DIP-8 with matching pinout and similar electrical characteristics.
  • ST485CN --: Low-power RS-485/RS-422 transceiver in DIP-8 offering comparable performance and a direct drop-in footprint.
  • MAX3485CPA --: Pin-compatible 3.3V RS-485 transceiver in DIP-8 with the same function and widely available as a direct drop-in replacement.
  • ISL8485CP --: 3.3V RS-485/RS-422 transceiver in DIP-8 with comparable pinout and performance, suitable as an alternative source.

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