The SN65HVS880PWP is a 8-input 24V Digital-input Serializer for industrial digital inputs. It is 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- 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. Input status is indicated via 3mA constant current LED outputs. An external precision resistor is required to set the internal reference current.
Output drivers for external status LEDs
Cascadable for more inputs in multiples of eight
Regulated 5V output for external digital isolator
Over-temperature and low-supply voltage indicator
Selectable debounce filters from 0 to 3ms
Adjustable current limits from 0.2 to 5.2mA
Field inputs and supply lines protected to 15kV HBM
