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MAX491ECPD from MAXI,MAXIM - Dallas Semiconductor

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MAX491ECPD

Manufacturer: MAXI

15kV ESD-Protected / Slew-Rate-Limited / Low-Power / RS-485/RS-422 Transceivers

Partnumber Manufacturer Quantity Availability
MAX491ECPD MAXI 100 In Stock

Description and Introduction

15kV ESD-Protected / Slew-Rate-Limited / Low-Power / RS-485/RS-422 Transceivers The MAX491ECPD is a low-power transceiver manufactured by Maxim Integrated (now part of Analog Devices). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Manufacturer:** Maxim Integrated (Analog Devices)  
### **Part Number:** MAX491ECPD  

### **Description:**  
The MAX491ECPD is a low-power, slew-rate-limited RS-485/RS-422 transceiver designed for balanced communication. It operates with a single +5V supply and is suitable for half-duplex communication applications.  

### **Key Features:**  
- **Data Rate:** Up to 2.5Mbps  
- **Supply Voltage:** +4.75V to +5.25V  
- **Low Power Consumption:**  
  - 120µA (typical) supply current (unloaded)  
  - 1µA (typical) shutdown current  
- **Slew-Rate Limited for Reduced EMI**  
- **Enhanced ESD Protection:**  
  - ±15kV (Human Body Model) on I/O pins  
- **Half-Duplex Operation**  
- **Thermal Shutdown Protection**  
- **Receiver Failsafe for Open/Shorted Inputs**  
- **Industrial Temperature Range:** -40°C to +85°C  

### **Package:**  
- **PDIP (Plastic Dual In-Line Package), 8-pin**  

### **Applications:**  
- RS-485/RS-422 Networks  
- Industrial Control Systems  
- Building Automation  
- Point-of-Sale Equipment  

This information is based solely on the manufacturer's datasheet and specifications.

Partnumber Manufacturer Quantity Availability
MAX491ECPD MAXIM 42 In Stock

Description and Introduction

15kV ESD-Protected / Slew-Rate-Limited / Low-Power / RS-485/RS-422 Transceivers The MAX491ECPD is a low-power transceiver manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX491ECPD  
- **Package:** PDIP (Plastic Dual In-Line Package)  
- **Operating Voltage Range:** +4.5V to +5.5V  
- **Data Rate:** Up to 2.5Mbps  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **Operating Temperature Range:** 0°C to +70°C  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Supply Current (Shutdown Mode):** 1µA (max)  
- **Supply Current (Active Mode):** 1mA (max)  

### **Descriptions:**
The MAX491ECPD is a low-power, RS-422/RS-485 compliant transceiver designed for balanced communication. It features a single driver and receiver, making it suitable for half-duplex applications. The device includes slew-rate limiting to reduce EMI and minimize reflections in improperly terminated cables. It operates from a single +5V supply and includes a low-power shutdown mode.

### **Features:**
- **Low Power Consumption:** 1µA max in shutdown mode.  
- **Slew-Rate Limited for Reduced EMI.**  
- **RS-422/RS-485 Compliant.**  
- **Single +5V Supply Operation.**  
- **Enhanced ESD Protection (±15kV HBM).**  
- **Half-Duplex Communication.**  
- **Thermal Shutdown Protection.**  
- **Driver Output Short-Circuit Protection.**  

This information is based solely on the manufacturer's datasheet and technical documentation.

Partnumber Manufacturer Quantity Availability
MAX491ECPD MAXIM 31 In Stock

Description and Introduction

15kV ESD-Protected / Slew-Rate-Limited / Low-Power / RS-485/RS-422 Transceivers The MAX491ECPD is a low-power, high-speed transceiver manufactured by Maxim Integrated.  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Package:** 14-PDIP  
- **Supply Voltage:** 4.5V to 5.5V  
- **Data Rate:** Up to 2.5Mbps  
- **Operating Temperature Range:** 0°C to +70°C  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **Protocol Support:** RS-422, RS-485  
- **Low Power Consumption:** Typically 120μA in shutdown mode  

### **Descriptions and Features:**  
- **Full-Duplex Communication:** Supports simultaneous transmission and reception.  
- **ESD Protection:** ±15kV Human Body Model (HBM) on I/O lines.  
- **Fail-Safe Receiver:** Ensures logic-high output when inputs are open or shorted.  
- **Slew Rate Limited:** Reduces EMI and reflections in uncontrolled environments.  
- **Shutdown Mode:** Allows power savings when not in use.  
- **Industrial-Grade:** Suitable for harsh environments with robust noise immunity.  

This device is commonly used in industrial control systems, telecommunications, and networking applications.

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