Overview
The SN65ALS180DRCT, produced by Texas Instruments, is a differential driver and receiver pair designed for bidirectional data communication on multipoint bus-transmission lines. This integrated circuit meets or exceeds the requirements of TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendation V.11. It combines a 3-state differential line driver and a differential input line receiver, both operating from a single 5-V power supply. The device is optimized for high-speed, low-power applications and features glitch-free power-up and power-down protection, thermal shutdown protection, and driver positive- and negative-current limiting.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| VCC Supply Voltage | 4.75 | 5 | 5.25 | V |
| Operating Temperature Range | -40 | 85 | °C | |
| Driver Output Current | ±60 mA | mA | ||
| Receiver Input Impedance | 12 kΩ | kΩ | ||
| Receiver Input Sensitivity | ±200 mV | mV | ||
| Driver Differential Output Voltage | 1.5 | 6 V | V | |
| Output Enable Time to High Level | 23 | 50 ns | ns | |
| Output Disable Time from High Level | 8 | 13 ns | ns |
Key Features
- Meets or exceeds the requirements of TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendation V.11.
- High-speed advanced low-power Schottky circuitry.
- Designed for 25-Mbaud operation in both serial and parallel applications.
- Low skew between devices: 6 ns max.
- Low supply-current requirements: 30 mA max.
- Individual driver and receiver I/O pins with dual VCC and dual GND.
- Wide positive and negative input/output bus voltage ranges.
- Thermal shutdown protection and driver positive- and negative-current limiting.
- Glitch-free power-up and power-down protection.
Applications
The SN65ALS180DRCT is suitable for various applications requiring reliable and high-speed data communication over multipoint bus-transmission lines. These include:
- Industrial control systems.
- Telecommunications equipment.
- Point-of-sale terminals.
- Remote sensors and actuators.
- Any system requiring TIA/EIA-422-B or TIA/EIA-485-A compliant communication.
Q & A
- What are the primary standards that the SN65ALS180DRCT complies with?
The SN65ALS180DRCT meets or exceeds the requirements of TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendation V.11.
- What is the operating voltage range for the SN65ALS180DRCT?
The device operates from a single 5-V power supply, with a voltage range of 4.75 V to 5.25 V.
- What is the maximum operating temperature for the SN65ALS180DRCT?
The operating temperature range is from -40°C to 85°C.
- What is the maximum driver output current?
The maximum driver output current is ±60 mA.
- Does the SN65ALS180DRCT have thermal protection?
- What is the typical output enable time to high level?
The typical output enable time to high level is 23 ns to 50 ns.
- Can the SN65ALS180DRCT be used in serial and parallel applications?
- What is the receiver input impedance?
The receiver input impedance is a minimum of 12 kΩ.
- Is the SN65ALS180DRCT glitch-free during power-up and power-down?
- What package options are available for the SN65ALS180DRCT?
