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Product details

Parameters

Number of inputs 8 Operating voltage (Min) (V) 10 Operating voltage (Max) (V) 34 I/O voltage (Min) (V) -0.3 I/O voltage (Max) (V) 36 IO current (mA) 0.2 to 5.2 Operating temperature range (C) -40 to 85 Interface type SPI Features Voltage Monitor Diagnostics Voltage monitoring diagnostics Logic voltage (Min) (V) 2 Logic voltage (Max) (V) 0.8 open-in-new Find other Multi-switch detection interface (MSDI) ICs

Package | Pins | Size

HTSSOP (PWP) 28 43 mm² 9.7 x 4.4 open-in-new Find other Multi-switch detection interface (MSDI) ICs

Features

  • Eight Sensor Inputs
    • High Input Voltage up to 34 V
    • Selectable Debounce Filters From 0 ms to 3 ms
    • Adjustable Current Limits From 0.2 mA to 5.2 mA
    • Field Inputs and Supply Lines Protected to 15-kV HBM
  • Output Drivers for External Status LEDs
  • Cascadable for More Inputs in Multiples of Eight
  • SPI-Compatible Interface
  • Regulated 5-V Output for External Digital Isolator
  • Low-Supply Voltage Indicator
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Description

The SN65HVS883 is a 24-V, eight-channel, digital-input serializer for high-channel density digital input modules of PC and PLC-based systems in industrial automation. In combination with galvanic isolators, the device completes the interface between the 24-V sensor outputs of the field-side and the low-voltage controller inputs at the control-side. Input signals provided by EN60947-5-2 compliant 2-wire and 3-wire proximity switches are current-limited and then validated by internal debounce filters. The input switching characteristic is 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 via a subsequent isolator into a serial PLC input.

Cascading of multiple SN65HVS883 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. Input status is indicated via 3-mA constant current LED outputs. An external precision resistor is required to set the internal reference current. The integrated voltage regulator provides a 5-V output to supply low-power isolators. An internal supply voltage monitor provides a chip-okay (CHOK) indication.

The SN65HVS883 comes in a 28-pin PWP PowerPAD™ package allowing for efficient heat dissipation. The device is specified for operation at temperatures from –40°C to 85°C.

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Technical documentation

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Type Title Date
* Datasheet SN65HVS883 24 V, Eight-Channel Digital-Input Serializer datasheet Sep. 20, 2016
Application note How to Design Isolated Comparators for ±48V, 110V and 240V DC and AC Detection (Rev. A) Mar. 14, 2018
Application note How To Simplify Isolated 24-V PLC Digital Input Module Designs (Rev. B) Mar. 14, 2018
Application note How to Improve Speed and Reliability of Isolated Digital Inputs in Motor Drives Dec. 16, 2017

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