Overview
The SN65HVD23DR, produced by Texas Instruments, is a high-performance RS-485 transceiver designed for robust and reliable data transmission in harsh environments. This device exceeds the typical requirements of the TIA/EIA-485-A standard and is optimized for long-cable networks and multipoint applications. It combines a 3-state differential driver and a differential receiver, operating from a single 5-V power supply, making it suitable for various industrial and control systems.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half Duplex |
| Receiver Hysteresis | 130 mV |
| Data Rate | 25 Mbps |
| Supply Voltage | 4.5 V ~ 5.5 V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Key Features
- Common-mode voltage range (–20 V to 25 V) more than doubles TIA/EIA-485 requirement
- Receiver equalization extends cable length and signaling rate
- Reduced unit-load for up to 256 nodes
- Bus I/O protection to over 16-kV HBM
- Failsafe receiver for open-circuit, short-circuit, and idle-bus conditions
- Low standby supply current of 1 µA (maximum)
- More than 100 mV receiver hysteresis
Applications
The SN65HVD23DR is designed for bidirectional data transmission on multipoint twisted-pair cables and is suitable for various applications, including:
- Digital motor controllers
- Remote sensors and terminals
- Industrial process control
- Security stations
- Environmental control systems
Q & A
- What is the operating temperature range of the SN65HVD23DR?
The operating temperature range is -40°C to 85°C. - What is the common-mode voltage range of the SN65HVD23DR?
The common-mode voltage range is –20 V to 25 V. - What is the maximum data rate of the SN65HVD23DR?
The maximum data rate is 25 Mbps. - What type of protection does the SN65HVD23DR offer?
The device offers bus I/O protection to over 16-kV HBM and failsafe operation for open-circuit, short-circuit, and idle-bus conditions. - How many nodes can the SN65HVD23DR support?
The device can support up to 256 nodes. - What is the supply voltage range for the SN65HVD23DR?
The supply voltage range is 4.5 V to 5.5 V. - What is the receiver hysteresis of the SN65HVD23DR?
The receiver hysteresis is more than 100 mV. - What is the standby supply current of the SN65HVD23DR?
The maximum standby supply current is 1 µA. - What protocols does the SN65HVD23DR support?
The device supports RS422 and RS485 protocols. - What is the package type of the SN65HVD23DR?
The package type is 8-SOIC (0.154", 3.90mm Width).
