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ADI LTC2870IUFD#TRPBF product image
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ADI LTC2870IUFD#TRPBFRoHS

Manufacturer
ADI
MPN
LTC2870IUFD#TRPBF
LCSC Part #
C580626
Packaging
QFN-28(4x5)
Customer #
Key Attributes
RS232/RS485 multi-protocol transceiver with integrated termination
Datasheetpdf iconADI LTC2870IUFD#TRPBF
In-Stock: 110
110 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 11.4013$ 10.6033$ 10.60
10+$ 11.2393$ 10.4526$ 104.53
30+$ 10.9583$ 10.1913$ 305.74
100+$ 10.7154$ 9.9654$ 996.54
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Interface/Drivers, Receivers, Transceivers
ManufacturerADI
PackagingQFN-28(4x5)
TypeTransceiver
Voltage - Supply3V~5.5V
Data Rate20Mbps
Number of Nodes256
Operating Temperature-40℃~+125℃
ESD Protect±26kV
Number of Drivers1
DuplexFull-Duplex;Half-Duplex
FeaturesTx/Rx enable;Enable shutdown;Fail-safe;Internal termination resistor;Thermal shutdown protection
Number of Receivers1
Quiescent Supply Current3.3mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The LTC2870/LTC2871 are robust pin-configurable multiprotocol transceivers, supporting RS232, RS485, and RS422 protocols, operating on a single 3V to 5.5V supply. The LTC2870 can be configured as two RS232 single - ended transceivers or one RS485 differential transceiver on shared I/O lines. The LTC2871 offers independent control of two RS232 transceivers and one RS485 transceiver, each on dedicated I/O lines. Pin - controlled integrated termination resistors allow for easy interface reconfiguration, eliminating external resistors and control relays. Half - duplex switches allow four - wire and two - wire RS485 configurations. Loopback mode steers the driver inputs to the receiver outputs for diagnostic self - test. The RS485 receivers support up to 256 nodes per bus, and feature full failsafe operation for floating, shorted or terminated inputs. An integrated DC/DC boost converter uses a tiny 2mm × 1.6mm inductor and one capacitor, eliminating the need for multiple supplies for driving RS232 levels.

Features

AI Translation
  • 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
  • H - Grade Available for the LTC2870 (-40°C to 125°C)

Applications

AI Translation
  • Software Selectable RS232/RS485/RS422 Interface
  • Point - of - Sale Terminals
  • Cable Repeaters
  • Protocol Translators