SN75ALS1177

ACTIVE

Dual Differential Drivers And Receivers

Product details

Number of receivers 2 Number of transmitters 2 Duplex Full Supply voltage (nom) (V) 5 Signaling rate (max) (MBits) 10 IEC 61000-4-2 contact (±V) None Fault protection (V) -10 to 15 Common-mode range (V) -7 to 12 Number of nodes 32 Isolated No Supply current (max) (µA) 50000 Rating Catalog Operating temperature range (°C) 0 to 70
Number of receivers 2 Number of transmitters 2 Duplex Full Supply voltage (nom) (V) 5 Signaling rate (max) (MBits) 10 IEC 61000-4-2 contact (±V) None Fault protection (V) -10 to 15 Common-mode range (V) -7 to 12 Number of nodes 32 Isolated No Supply current (max) (µA) 50000 Rating Catalog Operating temperature range (°C) 0 to 70
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOP (NS) 16 79.56 mm² 10.2 x 7.8
  • Meet or exceed 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 driver 3-state outputs active-high enable
  • Receiver common-mode input voltage range of –12V to 12V
  • Receiver input sensitivity: ±200mV
  • Receiver hysteresis: 50mV typical
  • Receiver high input impedance: 12kΩ minimum
  • Receiver 3-state outputs active-low enable for SN75ALS1177 only
  • Operate from single 5V supply
  • Meet or exceed 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 driver 3-state outputs active-high enable
  • Receiver common-mode input voltage range of –12V to 12V
  • Receiver input sensitivity: ±200mV
  • Receiver hysteresis: 50mV typical
  • Receiver high input impedance: 12kΩ minimum
  • Receiver 3-state outputs active-low enable for SN75ALS1177 only
  • Operate from single 5V supply

The SN75ALS1177 and SN75ALS1178 dual differential drivers and receivers are integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. The devices are designed for balanced transmission lines, and meet standards TIA/EIA-422-B and TIA/EIA-485-A.

The SN75ALS1177 combines dual 3-state differential line drivers and dual 3-state differential input line receivers, both of which operate from a single 5V power supply. The drivers and receivers have active-high and active-low enables, respectively, which can be externally connected together to function as direction control. The SN75ALS1178 drivers each have an individual active-high enable. Fail-safe design ensures that when the receiver inputs are open, the receiver outputs are always high.

The SN75ALS1177 and SN75ALS1178 are characterized for operation from 0°C to 70°C.

The SN75ALS1177 and SN75ALS1178 dual differential drivers and receivers are integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. The devices are designed for balanced transmission lines, and meet standards TIA/EIA-422-B and TIA/EIA-485-A.

The SN75ALS1177 combines dual 3-state differential line drivers and dual 3-state differential input line receivers, both of which operate from a single 5V power supply. The drivers and receivers have active-high and active-low enables, respectively, which can be externally connected together to function as direction control. The SN75ALS1178 drivers each have an individual active-high enable. Fail-safe design ensures that when the receiver inputs are open, the receiver outputs are always high.

The SN75ALS1177 and SN75ALS1178 are characterized for operation from 0°C to 70°C.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Data sheet SN75ALS1177, SN75ALS1178 Dual Differential Drivers and Receivers datasheet (Rev. C) PDF | HTML 01 Feb 2024

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
User guide: PDF
Package Pins Download
PDIP (N) 16 View options
SOP (NS) 16 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos