
Maxim Integrated
General Description
The MAX14784E/MAX14786E/MAX14787E/MAX14789E full-duplex RS-485 transceivers are designed for robust communication in harsh industrial environments. All devices feature ±35kV ESD protection on the RS-485 pins and operate from a 3V to 5.5V supply with a 4mA no-load supply current (max).
The MAX14784E/MAX14787E are optimized for communication over very long cables or short unterminated cables.
The MAX14784E/MAX14786E are available in a 14-pin SO package and operate over the -40°C to +125°C temperature range. The MAX14786E is also available in a 14-pin TSSOP package.
The MAX14787E/MAX14789E are optimized for space constrained applications and are available in an 8-pin SO package, operating over the -40°C to +105°C temperature range.
Beneits and Features
● Flexibility
• Use in Full-Duplex or Half-Duplex Applications
• Wide 3.0V to 5.5V Supply Voltage Range
• Available with 500kbps and 25Mbps Speed Options
• Available in 8-Pin and 14-Pin SO and TSSOP Packages
● Optimized for Performance in Harsh Industrial Environments
• ±35kV ESD (HBM) Protection on RS-485 I/O Ports
• Extended Operating Temperature Range
• Slew-Rate Limited Outputs (MAX14784E/ MAX14787E)
• Integrated Receiver Deglitch Filter Increases Noise Immunity (MAX14784E/MAX14787E/)
• Short-Circuit Protected Outputs
• True Fail-Safe Receiver
• Thermal Shutdown
● 1/4-Unit Load Allows up to 128 Transceivers on the Bus
APPLICATIONs
● Motion Controllers
● Encoder Interfaces
● HVAC Control Systems
● Utility Meters