Overview
The SN75ALS180DRG4, 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 operates from a single 5-V power supply and features high-speed advanced low-power Schottky circuitry, making it suitable for various serial and parallel applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 4.75 | 5.25 | V | |
| Operating Virtual Junction Temperature | 150 | ℃ | ||
| Storage Temperature Range | -65 | 150 | ℃ | |
| Differential Output Voltage (RL = 100 Ω) | 1.5 | 6 | V | |
| Receiver Input Impedance | 12 | kΩ | ||
| Receiver Input Sensitivity | ±200 | mV | ||
| Receiver Input Hysteresis | 60 | mV | ||
| Driver Output Current | ±60 | mA | ||
| Supply Current | 30 | mA |
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.
- Operates from a single 5-V supply.
Applications
The SN75ALS180DRG4 is suitable for various applications requiring bidirectional data communication over multipoint bus-transmission lines. These include:
- Industrial control systems.
- Telecommunications equipment.
- Networking and data communication systems.
- Automotive systems requiring robust communication interfaces.
- Any application needing reliable, high-speed differential signaling.
Q & A
- What is the operating supply voltage range for the SN75ALS180DRG4?
The operating supply voltage range is 4.75 V to 5.25 V.
- What are the key standards that the SN75ALS180DRG4 complies with?
The device meets or exceeds the requirements of TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendation V.11.
- What is the maximum differential output voltage of the SN75ALS180DRG4?
The maximum differential output voltage is 6 V.
- What is the receiver input impedance of the SN75ALS180DRG4?
The receiver input impedance is a minimum of 12 kΩ.
- Does the SN75ALS180DRG4 have thermal shutdown protection?
- What is the maximum supply current of the SN75ALS180DRG4?
The maximum supply current is 30 mA.
- Can the SN75ALS180DRG4 operate in both serial and parallel applications?
- What is the maximum skew between devices for the SN75ALS180DRG4?
The maximum skew between devices is 6 ns.
- Does the SN75ALS180DRG4 have glitch-free power-up and power-down protection?
- What is the package type and pin count of the SN75ALS180DRG4?
The device is available in a 14-pin SOIC package.
