Overview
The SN65HVD34DR is a 3.3-V full-duplex RS-485 driver and receiver integrated circuit manufactured by Texas Instruments. This device is designed for use in RS-422 and RS-485 networks and is particularly suited for applications requiring reliable, high-speed data transmission over long distances. The SN65HVD34DR operates with a 3.3-V power supply and features separate input and output pins for full-duplex bus communication, making it ideal for various industrial, process, and building automation systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | 14-SOIC (0.154", 3.90mm Width) | - |
| Protocol | RS422, RS485 | - |
| Number of Drivers/Receivers | 1/1 | - |
| Duplex | Full | - |
| Receiver Hysteresis | 50mV | - |
| Data Rate | 5Mbps | - |
| Voltage - Supply | 3 V ~ 3.6 V | V |
| Operating Temperature | -40°C ~ 85°C | °C |
| Mounting Type | Surface Mount | - |
| Bus-pin ESD Protection | Exceeds 15-kV HBM | - |
| Low-current Standby Mode | <1 μA | - |
Key Features
- 1/8 Unit-load option available, supporting up to 256 nodes on the bus.
- Bus-pin ESD protection exceeds 15-kV HBM.
- Optional driver output transition times for signaling rates of 1 Mbps, 5 Mbps, and 26 Mbps.
- Low-current standby mode: <1 μA.
- Glitch-free power-up and power-down protection for hot-plugging applications.
- 5-V Tolerant inputs.
- Bus idle, open, and short-circuit failsafe.
- Driver current limiting and thermal shutdown.
Applications
- Utility meters.
- DTE and DCE interfaces.
- Industrial, process, and building automation.
- Point-of-sale (POS) pins and networks.
Q & A
- What is the SN65HVD34DR used for?
The SN65HVD34DR is used for RS-422 and RS-485 network applications, providing reliable and high-speed data transmission over long distances. - What is the operating voltage range of the SN65HVD34DR?
The operating voltage range is 3 V to 3.6 V. - What is the maximum data rate of the SN65HVD34DR?
The maximum data rate is 5 Mbps. - What type of package does the SN65HVD34DR come in?
The SN65HVD34DR comes in a 14-SOIC package. - What is the operating temperature range of the SN65HVD34DR?
The operating temperature range is -40°C to 85°C. - Does the SN65HVD34DR have ESD protection?
Yes, the SN65HVD34DR has bus-pin ESD protection that exceeds 15-kV HBM. - What are some key features of the SN65HVD34DR?
Key features include 1/8 unit-load option, low-current standby mode, glitch-free power-up and power-down protection, and 5-V tolerant inputs. - What applications is the SN65HVD34DR suitable for?
The SN65HVD34DR is suitable for utility meters, DTE and DCE interfaces, industrial and process automation, and point-of-sale networks. - Is the SN65HVD34DR RoHS compliant?
Yes, the SN65HVD34DR is RoHS compliant. - What is the standby current of the SN65HVD34DR?
The standby current is less than 1 μA.
