Overview
The SN75ALS1177NSRE4 is a dual differential driver and receiver integrated circuit produced by Texas Instruments. This component is designed for bidirectional data communication on multipoint bus transmission lines, particularly in noisy environments. It meets or exceeds the standards of TIA/EIA-422-B and TIA/EIA-485-A, making it suitable for a variety of industrial and commercial applications. The device operates from a single 5V power supply and features dual 3-state differential line drivers and dual 3-state differential input line receivers.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | SN75ALS1177NSRE4 |
| Main Category | Integrated Circuits (ICs) |
| Sub Category | Interface - Drivers, Receivers, Transceivers |
| Brand | Texas Instruments |
| Description | IC DUAL DIFF DRVR/RCVR 16SO |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Half |
| Receiver Hysteresis | 50mV |
| Voltage - Supply | 4.75 V ~ 5.25 V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.209", 5.30mm Width) |
Key Features
- Meets or exceeds standards TIA/EIA-422-B and TIA/EIA-485-A.
- Designed for multipoint bus transmission on long bus lines in noisy environments.
- Low supply-current requirement: 50mA maximum.
- Driver positive-and negative-current limiting.
- Driver common-mode output voltage range of –7V to 12V.
- Thermal shutdown protection and driver 3-state outputs with active-high enable.
- Receiver common-mode input voltage range of –12V to 12V.
- Receiver input sensitivity: ±200mV and receiver hysteresis: 50mV typical.
- Receiver high input impedance: 12kΩ minimum.
- Fail-safe design ensures receiver outputs are always high when inputs are open.
Applications
- Motor Drives
- Factory Automation
- Building Automation
- Multipoint bus transmission lines in industrial and commercial environments.
Q & A
- What is the primary function of the SN75ALS1177NSRE4?
The SN75ALS1177NSRE4 is a dual differential driver and receiver integrated circuit designed for bidirectional data communication on multipoint bus transmission lines.
- What standards does the SN75ALS1177NSRE4 meet?
The device meets or exceeds the standards of TIA/EIA-422-B and TIA/EIA-485-A.
- What is the operating voltage range of the SN75ALS1177NSRE4?
The device operates from a single 5V power supply with a voltage range of 4.75 V ~ 5.25 V.
- What is the operating temperature range of the SN75ALS1177NSRE4?
The device is characterized for operation from 0°C to 70°C.
- What is the package type of the SN75ALS1177NSRE4?
The device is packaged in a 16-SOIC (0.209", 5.30mm Width) package.
- Does the SN75ALS1177NSRE4 have thermal shutdown protection?
- What is the receiver input sensitivity of the SN75ALS1177NSRE4?
The receiver input sensitivity is ±200mV.
- What is the typical receiver hysteresis of the SN75ALS1177NSRE4?
The typical receiver hysteresis is 50mV.
- What are some common applications of the SN75ALS1177NSRE4?
Common applications include motor drives, factory automation, and building automation.
- Does the SN75ALS1177NSRE4 have fail-safe design features?
- How many drivers and receivers does the SN75ALS1177NSRE4 have?
The device has 2 drivers and 2 receivers.
