RS232/RS485 Multiprotocol Transceivers with Integrated Termination Features: One RS485 and Two RS232 Transceivers 3V to 5.5V Supply Voltage 20Mbps RS485 and 500kbps RS232 Automatic Selection of Integrated RS485 (120Ω) and RS232 (5kΩ) Termination Resistors Half-/Full-Duplex RS485 Switching High ESD: ±26kV (LTC2870), ±16kV (LTC2871) Logic Loopback Mode 1.7V to 5.5V Logic Interface Supports Up to 256 RS485 Nodes RS485 Receiver Failsafe Eliminates UART Lockup Available in 28-Pin 4mm × 5mm QFN and TSSOP (LTC2870), and 38-Pin 5mm × 7mm QFN and TSSOP (LTC2871)

Single-Bus RS485/RS232 Multiprotocol Transceiver with Switchable Termination Features: One RS485 or One RS232 Transceiver 3V to 5.5V Supply Voltage Up to 20Mbps RS485 Slew-Controlled RS232 Operation: Selectable 1Mbps or 250kbps Automatic Selection of Integrated RS485 (120Ω) and RS232 (5kΩ) Termination Resistors High ESD: ±26kV HBM Logic Loopback Mode 1.7V to 5.5V Logic Interface Supports Up to 256 RS485 Nodes RS485 Receiver Failsafe Eliminates UART Lockup H-Grade Available (–40°C to 125°C) Available in 24-Pin 4mm × 5mm QFN Package

60V Rugged PROFIBUS RS485 Transceivers Features: PROFIBUS IEC 61158-2 Compliant Protected from Overvoltage Line Faults to ±60V ±52kV ESD Interface Pins, ±15kV All Other Pins ±2kV (Level 4) IEC61000-4-4 Fast Transient Burst ±25V Working Common Mode Range 20Mbps Maximum Baud Rate 1.65V to 5.5V Logic Supply Pin for Flexible Digital Interfacing (LTC2877) 5V Supply Can Operate Down to 3V for Low Power, Low Swing Applications Fully Balanced Differential Receiver Thresholds with 240mV Hysteresis for Superior Noise Tolerance and Low Duty Cycle Distortion Receiver Failsafe for Open, Shorted and Terminated Conditions Wide Operating Temperature Range: –40°C to 125°C Available in Small DFN and MSOP Packages

60V Rugged PROFIBUS RS485 Transceivers Features: PROFIBUS IEC 61158-2 Compliant Protected from Overvoltage Line Faults to ±60V ±52kV ESD Interface Pins, ±15kV All Other Pins ±2kV (Level 4) IEC61000-4-4 Fast Transient Burst ±25V Working Common Mode Range 20Mbps Maximum Baud Rate 1.65V to 5.5V Logic Supply Pin for Flexible Digital Interfacing (LTC2877) 5V Supply Can Operate Down to 3V for Low Power, Low Swing Applications Fully Balanced Differential Receiver Thresholds with 240mV Hysteresis for Superior Noise Tolerance and Low Duty Cycle Distortion Receiver Failsafe for Open, Shorted and Terminated Conditions Wide Operating Temperature Range: –40°C to 125°C Available in Small DFN and MSOP Packages

60V Rugged PROFIBUS RS485 Transceivers Features: PROFIBUS IEC 61158-2 Compliant Protected from Overvoltage Line Faults to ±60V ±52kV ESD Interface Pins, ±15kV All Other Pins ±2kV (Level 4) IEC61000-4-4 Fast Transient Burst ±25V Working Common Mode Range 20Mbps Maximum Baud Rate 1.65V to 5.5V Logic Supply Pin for Flexible Digital Interfacing (LTC2877) 5V Supply Can Operate Down to 3V for Low Power, Low Swing Applications Fully Balanced Differential Receiver Thresholds with 240mV Hysteresis for Superior Noise Tolerance and Low Duty Cycle Distortion Receiver Failsafe for Open, Shorted and Terminated Conditions Wide Operating Temperature Range: –40°C to 125°C Available in Small DFN and MSOP Packages

60V Rugged PROFIBUS RS485 Transceivers Features:PROFIBUS IEC 61158-2 CompliantProtected from Overvoltage Line Faults to ±60V±52kV ESD Interface Pins, ±15kV All Other Pins±2kV (Level 4) IEC61000-4-4 Fast Transient Burst±25V Working Common Mode Range20Mbps Maximum Baud Rate1.65V to 5.5V Logic Supply Pin for Flexible Digital Interfacing (LTC2877)5V Supply Can Operate Down to 3V for Low Power, Low Swing ApplicationsFully Balanced Differential Receiver Thresholds with240mV Hysteresis for Superior Noise Tolerance andLow Duty Cycle DistortionReceiver Failsafe for Open, Shorted and Terminated ConditionsWide Operating Temperature Range: –40°C to 125°CAvailable in Small DFN and MSOP Packages

60V Rugged PROFIBUS RS485 Transceivers Features:PROFIBUS IEC 61158-2 CompliantProtected from Overvoltage Line Faults to ±60V±52kV ESD Interface Pins, ±15kV All Other Pins±2kV (Level 4) IEC61000-4-4 Fast Transient Burst±25V Working Common Mode Range20Mbps Maximum Baud Rate1.65V to 5.5V Logic Supply Pin for Flexible Digital Interfacing (LTC2877)5V Supply Can Operate Down to 3V for Low Power, Low Swing ApplicationsFully Balanced Differential Receiver Thresholds with240mV Hysteresis for Superior Noise Tolerance andLow Duty Cycle DistortionReceiver Failsafe for Open, Shorted and Terminated ConditionsWide Operating Temperature Range: –40°C to 125°CAvailable in Small DFN and MSOP Packages

LED Display Drivers Serially Interfaced, 8-Digit, LED Display Drivers

1.8V to 5.5V RS-232 Single and Dual Transceivers Features: 1.8V to 5.5V Supply Voltage Single and Dual Transceivers High-Speed Operation 1Mbps for 250pF/3kΩ Load (LTC2802, LTC2804) 250kbps for 1nF/3kΩ Load 100kbps for 2.5nF/3kΩ TIA/EIA-232-F Load Low-Power 1μA Shutdown and 15μA Receivers-Active Modes No Damage or Latchup to ±10kV ESD on RS-232 Interface Logic Supply Pin for Easy Level-Shifting to UART or Microprocessor Low-Latency Output Enable Allows Line Sharing and Half-Duplex Operation True RS-232 Compliant Output Levels Small Footprint: LTC2801/LTC2802 4mm × 3mm DFN Package LTC2803/LTC2804 Narrow SSOP-16 5mm × 3mm DFN Packages

1.8V to 5.5V RS-232 Single and Dual Transceivers Features: 1.8V to 5.5V Supply Voltage Single and Dual Transceivers High-Speed Operation 1Mbps for 250pF/3kΩ Load (LTC2802, LTC2804) 250kbps for 1nF/3kΩ Load 100kbps for 2.5nF/3kΩ TIA/EIA-232-F Load Low-Power 1μA Shutdown and 15μA Receivers-Active Modes No Damage or Latchup to ±10kV ESD on RS-232 Interface Logic Supply Pin for Easy Level-Shifting to UART or Microprocessor Low-Latency Output Enable Allows Line Sharing and Half-Duplex Operation True RS-232 Compliant Output Levels Small Footprint: LTC2801/LTC2802 4mm × 3mm DFN Package LTC2803/LTC2804 Narrow SSOP-16 5mm × 3mm DFN Packages