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ISO6042LDFPR Datasheet(PDF) 30 Page - Texas Instruments

Part # ISO6042LDFPR
Description  ISO604x Low Power and Low Propagation Delay, Reinforced, 4-Channel Digital Isolator With 0.635mA / ch, 200Mbps, 9ns tPD , 7ps (RMS) jitter and 1.8V Logic Support
PDF  56 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

ISO6042LDFPR Datasheet(HTML) 30 Page - Texas Instruments

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8 Detailed Description
8.1 Overview
The ISO604x family of devices have an edge based scheme to transmit the digital data across a silicon dioxide
based isolation barrier.
The digital input signal (IN) of the device is sampled by a transmitter and at every data edge the transmitter
sends a corresponding differential signal across the isolation barrier. When the input signal is static, the refresh
logic periodically sends the necessary differential signal from the transmitter. On the other side of the isolation
barrier, the receiver converts the differential signal into a single-ended signal which is output on the OUT pin
through a buffer. If the receiver does not receive a data or refresh signal, the timeout logic detects the loss of
signal or power from the input side and drives the output to the default level.
8.2 Functional Block Diagram
Refresh
Logic
INx
Differential
Signal
Transmitter
Receiver
Single-ended
Signal
OUTx
Timeout
Logic
ENx
Figure 8-1. Conceptual Block Diagram of an Edge Based Digital Isolator
ISO6040, ISO6041, ISO6042
SLLSFV3B – DECEMBER 2025 – REVISED AUGUST 2026
www.ti.com
30
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Copyright © 2026 Texas Instruments Incorporated
Product Folder Links: ISO6040 ISO6041 ISO6042



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