Overview
The SN751177NSRE4, produced by Texas Instruments, is a dual differential driver and receiver integrated circuit designed for balanced multipoint bus transmission. This device is optimized for full-duplex data communications over long bus lines, particularly in noisy environments. It meets or exceeds the requirements of ANSI standards TIA/EIA-422-B and TIA/EIA-485-A, as well as ITU recommendations V.10 and V.11. The SN751177 operates from a single 5V supply and is characterized for operation from -20°C to 85°C, making it suitable for a wide range of industrial and commercial applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Series | SN751177 |
| Mounting Style | SMD/SMT |
| Function | Transceiver |
| Supply Voltage - Max | 5.25 V |
| Supply Voltage - Min | 4.75 V |
| Minimum Operating Temperature | -20°C |
| Maximum Operating Temperature | +85°C |
| Height | 1.95 mm |
| Length | 10.3 mm |
| Operating Supply Current | 110 mA |
| Operating Supply Voltage | 5 V |
| Output Type | 3-State |
| Package | 16-SOIC (0.209", 5.30mm Width) |
| Protocol | RS422, RS485 |
| Receiver Hysteresis | 50 mV typical |
| Receiver Input Sensitivity | ±200mV |
| Receiver Input Impedance | 12 kΩ minimum |
Key Features
- Meet or exceed the requirements of ANSI standards TIA/EIA-422-B and TIA/EIA-485-A and ITU recommendations V.10 and V.11.
- Designed for multipoint bus transmission on long bus lines in noise environments.
- Driver positive- and negative-current limiting and thermal shutdown protection.
- Driver 3-state outputs.
- Receiver common-mode input voltage range of −12V to 12V.
- Receiver input sensitivity: ±200mV and typical input hysteresis of 50mV.
- Receiver input impedance: 12 kΩ minimum.
- Receiver 3-state outputs (SN751177 only).
- Operate from a single 5V supply.
Applications
- Motor Drives
- Factory Automation
- Building Automation
Q & A
- What is the operating temperature range of the SN751177NSRE4? The operating temperature range is from -20°C to 85°C.
- What are the supported protocols by the SN751177NSRE4? The device supports RS422 and RS485 protocols.
- What is the maximum supply voltage for the SN751177NSRE4? The maximum supply voltage is 5.25 V.
- What is the receiver input sensitivity of the SN751177NSRE4? The receiver input sensitivity is ±200mV.
- Does the SN751177NSRE4 have thermal shutdown protection? Yes, it has thermal shutdown protection for the drivers.
- What is the typical receiver hysteresis of the SN751177NSRE4? The typical receiver hysteresis is 50 mV.
- How many drivers and receivers does the SN751177NSRE4 have? It has 2 drivers and 2 receivers.
- What is the package type of the SN751177NSRE4? The package type is 16-SOIC (0.209", 5.30mm Width).
- What is the operating supply current of the SN751177NSRE4? The operating supply current is 110 mA.
- Does the SN751177NSRE4 support 3-state outputs? Yes, both the driver and receiver have 3-state outputs.
