1 Features
• Compatible with TIA/EIA-485-A
• PROFIBUS compatible at 5V bus-side supply
• Bus I/O protection
– ±30kV HBM
– ±16kV IEC 61000-4-2 Contact discharge
– ±4kV IEC 61000-4-4 Electrical fast transient
• Low-EMI 500kbps, 12Mbps and 50Mbps Data
Rates
• 1.71V to 5.5V logic-side supply (VCC1), 3V to 5.5V
bus-side supply (VCC2)
• Failsafe receiver for bus open, short, and idle
• 1/8 Unit load up to 256 nodes on bus
• 100kV/μs (typical) high common-mode transient
immunity
• Extended temperature range from –40°C to 125°C
• Glitch-free power-up and power-down for hot plugin
• Wide-body SOIC-16 package
• Pin compatible to most isolated RS-485
transceivers
• Safety-related certifications:
– 7071VPK VIOTM and 1500VPK VIORM (reinforced
and basic options) per DIN VDE V
0884-11:2017-01
– 5000VRMS isolation for 1 minute per UL 1577
– IEC 60950-1, IEC 62368-1, IEC 60601-1 and
IEC 61010-1 certifications
– CQC, TUV, and CSA approvals

2 Applications
• Grid infrastructure
• Solar inverter
• Factory automation & control
• Motor drives
• HVAC systems and building automation

3 Description
The ISO14xx devices are galvanically-isolated
differential line transceivers for TIA/EIA RS-485
and RS-422 applications. These noise-immune
transceivers are designed to operate in harsh
industrial environments. The bus pins of these
devices can endure high levels of IEC electrostatic
discharge (ESD) and IEC electrical fast transient
(EFT) events which eliminates the need for additional
components on bus for system-level protection. The
devices are available for both basic and reinforced
isolation (see Reinforced and Basic Isolation Options).