Overview
The SN65HVD08DR, produced by Texas Instruments, is a versatile RS-485 transceiver that combines a 3-state differential line driver and a differential line receiver. This device is designed for balanced data transmission and is compatible with ANSI TIA/EIA-485-A and ISO-8482E standard-compliant devices. It operates over a wide supply voltage range of 3-V to 5.5-V, making it suitable for various applications where power flexibility is crucial. The SN65HVD08DR is particularly useful in systems requiring low quiescent power consumption and high reliability in harsh environments.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | - | 5.5 | V |
| Operating Temperature Range | -40 | - | 85 | °C |
| Quiescent Power Consumption | - | < 90 | - | mW |
| Bus-Pin ESD Protection | - | - | 16 kV | HBM |
| Driver Output Voltage Slew Rate | - | - | - | Limited for 10 Mbps |
| High-Level Output Current (IOH) | -60 | - | - | mA (Driver) |
| Low-Level Output Current (IOL) | 60 | - | - | mA (Driver) |
| Package Type | - | - | SOIC (D), PDIP (P) | - |
| Pins | - | - | 8 | - |
Key Features
- Operates with a 3-V to 5.5-V supply voltage range.
- Consumes less than 90-mW quiescent power.
- Open-circuit, short-circuit, and idle-bus failsafe receiver.
- 1/8th unit-load, supporting up to 256 nodes on the bus.
- Bus-pin ESD protection exceeds 16-kV HBM.
- Driver output voltage slew-rate limited for optimum signal quality at 10 Mbps.
- Electrically compatible with ANSI TIA/EIA-485 standard.
- The drivers and receivers have active-high and active-low enables, which can be externally connected together to function as a direction control.
Applications
- Data transmission with remote stations powered from the host.
- Isolated multipoint data buses.
- Industrial process control networks.
- Point-of-sale networks.
- Electric utility metering.
Q & A
- What is the operating supply voltage range of the SN65HVD08DR?
The SN65HVD08DR operates with a supply voltage range of 3-V to 5.5-V.
- What is the quiescent power consumption of the SN65HVD08DR?
The device consumes less than 90-mW quiescent power.
- What kind of ESD protection does the SN65HVD08DR offer?
The SN65HVD08DR offers bus-pin ESD protection that exceeds 16-kV HBM.
- How many nodes can be supported on the bus with the SN65HVD08DR?
The device supports up to 256 nodes on the bus due to its 1/8th unit-load capability.
- What is the maximum data rate supported by the SN65HVD08DR?
The device supports data rates up to 10 Mbps with slew-rate limited driver output voltage for optimum signal quality.
- Is the SN65HVD08DR compatible with any specific industry standards?
Yes, it is electrically compatible with the ANSI TIA/EIA-485 standard.
- What types of packages are available for the SN65HVD08DR?
The device is available in SOIC (D) and PDIP (P) packages.
- What is the operating temperature range of the SN65HVD08DR?
The device operates over a temperature range of -40°C to 85°C.
- How does the SN65HVD08DR handle failsafe conditions?
The device features an open-circuit, short-circuit, and idle-bus failsafe receiver.
- Can the enables of the drivers and receivers be controlled externally?
Yes, the drivers and receivers have active-high and active-low enables that can be externally connected together to function as a direction control.
