SN65HVS883
ZHCSFI0 –SEPTEMBER 2016
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8 Detailed Description
8.1 Overview
The SN65HVS883 is an 8 channel, digital input serializer which operates from a 24 V supply and accepts digital
inputs of up to 34 V on the 8 channels (IP0-IP7). The device provides a serially shifted digital output with reduced
voltage ranges of 0-5 V for applications in industrial and building automation systems. The SN65HVS883 meets
JEDEC standards for ESD protection (refer to ESD Ratings), and is SPI compatible for interfacing with standard
microcontrollers. The serializer operates in 2 fundamental modes: Load Mode and Shift mode. In Load mode,
information from the field inputs is allowed to latch into the shift register. In Shift mode, the information stored in
the parallel shift register can be serially shifted to the serial output (SOP). A detailed description of the functional
modes is available in the Device Functional Modes section.
8.2 Functional Block Diagram
Voltage
Regulator
5VOP
V24
5V
Supply
CHOK
Monitor
FGND
DB0
DB1
Adj. Current
Thresholds
Debounce
Select
RLIM
SIP
RE0
IP0
Current
Sense
Debounce
Filter
&
LD
Voltage
Sense
CE
Channel 0
CLK
RE7
IP7
Channel 7
SOP
Copyright © 2016, Texas Instruments Incorporated
10
Copyright © 2016, Texas Instruments Incorporated
TI [ TEXAS INSTRUMENTS ]
