SN65HVS885

ACTIVE

34-V, 8-channel digital-input serializer for 5-V systems

Product details

Number of input channels 8 Operating voltage (min) (V) 4.5 Operating voltage (max) (V) 5.5 Input/output voltage (max) (V) 6 Input/output voltage (min) (V) -0.5 IO current (mA) 0.2 to 5.2 Operating temperature range (°C) -40 to 125 Interface type SPI Features Overtemperature Diagnostics Overtemperature diagnostics Logic voltage (min) (V) 2 Logic voltage (max) (V) 0.8 Rating Catalog
Number of input channels 8 Operating voltage (min) (V) 4.5 Operating voltage (max) (V) 5.5 Input/output voltage (max) (V) 6 Input/output voltage (min) (V) -0.5 IO current (mA) 0.2 to 5.2 Operating temperature range (°C) -40 to 125 Interface type SPI Features Overtemperature Diagnostics Overtemperature diagnostics Logic voltage (min) (V) 2 Logic voltage (max) (V) 0.8 Rating Catalog
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • Eight Digital Sensor Inputs
    • High Input Voltage up to 34 V
    • Selectable Debounce Filters From 0 ms to
      3 ms
    • Flexible Input Current-Limited – 0.2 mA to
      5.2 mA
    • Field Inputs Protected to 15-kV ESD
  • Single 5-V Supply
  • Output Drivers for External Status LEDs
  • Cascadable for More Inputs in Multiples of Eight
  • SPI-Compatible Interface
  • Overtemperature Indicator
  • APPLICATIONS
    • Industrial PCs
    • Digital I/O Cards
    • High Channel Count Digital Input Modules
    • Decentralized I/O Modules

All other trademarks are the property of their respective owners

  • Eight Digital Sensor Inputs
    • High Input Voltage up to 34 V
    • Selectable Debounce Filters From 0 ms to
      3 ms
    • Flexible Input Current-Limited – 0.2 mA to
      5.2 mA
    • Field Inputs Protected to 15-kV ESD
  • Single 5-V Supply
  • Output Drivers for External Status LEDs
  • Cascadable for More Inputs in Multiples of Eight
  • SPI-Compatible Interface
  • Overtemperature Indicator
  • APPLICATIONS
    • Industrial PCs
    • Digital I/O Cards
    • High Channel Count Digital Input Modules
    • Decentralized I/O Modules

All other trademarks are the property of their respective owners

The SN65HVS885 is an eight channel, digital-input serializer for high-channel density digital input modules in industrial and building automation. Operating from a 5-V supply the device accepts field input voltages of up to 34 V. In combination with galvanic isolators the device completes the interface between the high voltage signals on the field-side and the low-voltage signals on the controller side. Inputs signals are current limited and then validated by internal debounce filters.

With the addition of few external components, the input switching characteristic can be configured in accordance with IEC61131-2 for Type 1, 2 and 3 sensor switches.

Upon the application of load and clock signals, input data is latched in parallel into the shift register and afterwards clocked out serially.

Cascading of multiple devices is possible by connecting the serial output of the leading device with the serial input of the following device, enabling the design of high-channel count input modules. Multiple devices can be cascaded through a single serial port, reducing both the isolation channels and controller inputs required.

Input status can be visually indicated via constant current LED outputs. The current limit on the inputs is set by a single, external, precision resistor. An on-chip temperature sensor provides diagnostic information for graceful shutdown and system safety.

The SN65HVS885 is available in a 28-pin PWP PowerPAD package, allowing for efficient heat dissipation. The device is specified for operation at temperatures from –40°C to 125°C.

The SN65HVS885 is an eight channel, digital-input serializer for high-channel density digital input modules in industrial and building automation. Operating from a 5-V supply the device accepts field input voltages of up to 34 V. In combination with galvanic isolators the device completes the interface between the high voltage signals on the field-side and the low-voltage signals on the controller side. Inputs signals are current limited and then validated by internal debounce filters.

With the addition of few external components, the input switching characteristic can be configured in accordance with IEC61131-2 for Type 1, 2 and 3 sensor switches.

Upon the application of load and clock signals, input data is latched in parallel into the shift register and afterwards clocked out serially.

Cascading of multiple devices is possible by connecting the serial output of the leading device with the serial input of the following device, enabling the design of high-channel count input modules. Multiple devices can be cascaded through a single serial port, reducing both the isolation channels and controller inputs required.

Input status can be visually indicated via constant current LED outputs. The current limit on the inputs is set by a single, external, precision resistor. An on-chip temperature sensor provides diagnostic information for graceful shutdown and system safety.

The SN65HVS885 is available in a 28-pin PWP PowerPAD package, allowing for efficient heat dissipation. The device is specified for operation at temperatures from –40°C to 125°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 5
Type Title Date
* Data sheet SN65HVS885 34-V Digital-Input Serializer for 5-V Systems datasheet (Rev. A) PDF | HTML 19 Oct 2015
Application brief How to Design Isolated Comparators for ±48V, 110V and 240V DC and AC Detection (Rev. A) 14 Mar 2018
Application brief How To Simplify Isolated 24-V PLC Digital Input Module Designs (Rev. B) 14 Mar 2018
Application brief How to Improve Speed and Reliability of Isolated Digital Inputs in Motor Drives 16 Dec 2017
EVM User's guide SN65HVS885EVM User's Guide 13 Jan 2009

Design & development

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

Evaluation board

SN65HVS885EVM — SN65HVS885EVM Evaluation Module

The SN65HVS885EVM evaluation module (EVM) supports the rapid, parametric evaluation of the SN65HVS885 digital input serializer. It is intended to be used in conjunction with the SN65HVS885 datasheet, (SLAS638). Note this EVM is not intended for electromagnetic compatibility (EMC) tests.

User guide: PDF
Not available on TI.com
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
Reference designs

TIDA-00017 — 8-Channel Digital Input Module for Programmable Logic Controllers (PLC)

TIDA-00017 is an eight-channel digital input module front-end reference design for programmable logic controllers (PLCs). It is designed and fully tested to meet IEC61000-4 EMC and surge requirements for industrial automation systems to reduce time to market. The design serializes (...)
Design guide: PDF
Schematic: PDF
Package Pins Download
HTSSOP (PWP) 28 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

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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