Overview
The MC75174BDWR2G is a quad EIA-485 line driver produced by ON Semiconductor. This device is designed to comply with the EIA-485 standard for use in balanced digital multipoint systems. It also meets the requirements of EIA-422-A and CCITT Recommendations V.11 and X.27. The MC75174BDWR2G features three-state outputs, thermal shutdown, and output current limiting, making it suitable for high-speed data transmission in noisy environments.
Key Specifications
| Characteristic | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Power Supply Voltage | VCC | 4.75 | 5.0 | 5.25 | Vdc |
| Input Voltage (Data, Enable) | Vin | 0 | - | VCC | Vdc |
| Operating Ambient Temperature | TA | -40 | - | 85 | °C |
| Common Mode Output Voltage Range | Vcm | -7.0 | - | 12 | Vdc |
| Output Current (Normal data transmission) | IO | -65 | - | 65 | mA |
| Thermal Shutdown Junction Temperature | Tjts | - | - | 150 | °C |
| Propagation Delay - Input to Single-ended Output | tPLH, tPHL | 18 | 23 | 30 | ns |
| Propagation Delay - Input to Differential Output | tPLH(D), tPHL(D) | 15 | 17 | 25 | ns |
Key Features
- Meets EIA-485 Standard for Party Line Operation
- Meets EIA-422-A and CCITT Recommendations V.11 and X.27
- Three-state outputs with high impedance
- Thermal shutdown at 150°C junction temperature
- Positive and negative current limiting
- Transmission rates in excess of 10 MBPS
- Single 5.0 V supply
- Pb-free packages available
- Pin compatible with TI SN75172/4 and NS A96172/4
- Interchangeable with MC3487 and AM26LS31 for EIA-422-A applications
Applications
The MC75174BDWR2G is optimized for balanced multipoint bus transmission in various applications, including:
- Industrial control systems
- Telecommunications equipment
- Automotive systems
- Medical devices requiring high-speed data transmission
- Noisy environments where robust signal integrity is necessary
Q & A
- What is the operating temperature range of the MC75174BDWR2G?
The operating ambient temperature range is -40°C to +85°C.
- What is the power supply voltage requirement for the MC75174BDWR2G?
The power supply voltage is 5.0 V with a tolerance of ±5% (4.75 V to 5.25 V).
- Does the MC75174BDWR2G support three-state outputs?
- What are the key standards that the MC75174BDWR2G complies with?
The device complies with EIA-485, EIA-422-A, and CCITT Recommendations V.11 and X.27.
- What is the maximum transmission rate of the MC75174BDWR2G?
The device supports transmission rates in excess of 10 MBPS.
- Does the MC75174BDWR2G have thermal shutdown protection?
- What is the common mode output voltage range of the MC75174BDWR2G?
The common mode output voltage range is -7.0 V to +12 V.
- Is the MC75174BDWR2G available in Pb-free packages?
- What are the typical propagation delays for the MC75174BDWR2G?
The propagation delay from input to single-ended output is typically 23 ns, and to differential output is typically 17 ns.
- Can the MC75174BDWR2G be used in noisy environments?
