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Part Name(s) : DS36C278 DS36C278M DS36C278MX DS36C278N DS36C278TM DS36C278TMX DS36C278TN National-Semiconductor
National ->Texas Instruments
Description : LOW POWER Multipoint EIA-RS-485 TRANSCEIVER

General Description
The DS36C278 is a LOW POWER differential bus/line TRANSCEIVER designed to meet the requirements of RS-485 standard for multipoint data transmission. In addition it is compatible with TIA/EIA-422-B.
The CMOS design offers significant POWER savings over its bipolar and ALS counterparts without sacrificing ruggedness against ESD damage. The device is ideal for use in battery POWERed or POWER conscious applications. ICCis specified at 500 µA maximum.

Features
■ 100% RS-485 compliant
   — Guaranteed RS-485 device interoperation
LOW POWER CMOS design: ICC500 µA max
■ Built-in POWER up/down glitch-free circuitry
   — Permits live TRANSCEIVER insertion/displacement
■ DIP and SOIC packages available
■ Industrial temperature range: −40˚C to +85˚C
■ On-board thermal shutdown circuitry
   — Prevents damage to the device in the event of excessive POWER dissipation
■ Wide common mode range: −7V to +12V
■ Receiver open input fail-safe
■ 1⁄4 unit load (DS36C278): ≥128 nodes
■ 1⁄2 unit load (DS36C278T): ≥64 nodes
■ ESD (human body model): ≥2kV
■ Drop in replacement for:
   — LTC485, MAX485, DS75176, DS3695

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Part Name(s) : ADM485AQ ADI
Analog Devices
Description : +5 V LOW POWER EIA RS-485 TRANSCEIVER

PRODUCT DESCRIPTION
The ADM485 is a differential line TRANSCEIVER suitable for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced data transmission and complies with both EIA Standards RS-485 and RS-422. The part contains a differential line driver and a differential line receiver. Both the driver and the receiver may be enabled independently. When disabled, the outputs are tristated.
The ADM485 operates from a single +5 V POWER supply. Excessive POWER dissipation caused by bus contention or by output shorting is prevented by a thermal shutdown circuit. This feature forces the driver output into a high impedance state if during fault conditions a significant temperature increase is detected in the internal driver circuitry.
Up to 32 TRANSCEIVERs may be connected simultaneously on a bus, but only one driver should be enabled at any time. It is important, therefore, that the remaining disabled drivers do not load the bus. To ensure this, the ADM485 driver features high output impedance when disabled and also when POWERed down.
This minimizes the loading effect when the TRANSCEIVER is not being utilized. The high impedance driver output is maintained over the entire common-mode voltage range from –7 V to +12 V. The receiver contains a fail safe feature which results in a logic high output state if the inputs are unconnected (floating).
The ADM485 is fabricated on BiCMOS, an advanced mixed technology process combining LOW POWER CMOS with fast switching bipolar technology. All inputs and outputs contain protection against ESD; all driver outputs feature high source and sink current capability. An epitaxial layer is used to guard against latch-up.
The ADM485 features extremely fast switching speeds. Minimal driver propagation delays permit transmission at data rates up to 5 Mbits/s while LOW skew minimizes EMI interference.
The part is fully specified over the commercial and industrial temperature range and is available in an 8-lead DIL/SOIC package.

FEATURES
  Meets EIA RS-485 Standard
  5 Mb/s Data Rate
  Single +5 V Supply
  –7 V to +12 V Bus Common-Mode Range
  High Speed, LOW POWER BiCMOS
  Thermal Shutdown Protection
  Short Circuit Protection
  Zero Skew Driver
  Driver Propagation Delay: 10 ns
  Receiver Propagation Delay: 25 ns
  High Z Outputs with POWER Off
  Superior Upgrade for LTC485
 
APPLICATIONS
  LOW POWER RS-485 Systems
  DTE-DCE Interface
  Packet Switching
  Local Area Networks
  Data Concentration
  Data Multiplexers
  Integrated Services Digital Network (ISDN)

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Part Name(s) : ADM1485_00 ADM1485JN ADM1485JR ADM1485AN ADM1485AR ADM1485AQ ADI
Analog Devices
Description : +5 V LOW POWER EIA RS-485 TRANSCEIVER

GENERAL DESCRIPTION
The ADM1485 is a differential line TRANSCEIVER suitable for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced data transmission and complies with both EIA Standards RS-485 and RS-422. The part contains a differential line driver and a differential line receiver. Both the driver and the receiver may be enabled independently. When disabled, the outputs are tristated.
The ADM1485 operates from a single +5 V POWER supply. Excessive POWER dissipation caused by bus contention or by output shorting is prevented by a thermal shutdown circuit.
This feature forces the driver output into a high impedance state if during fault conditions a significant temperature increase is detected in the internal driver circuitry.
Up to 32 TRANSCEIVERs may be connected simultaneously on a bus, but only one driver should be enabled at any time. It is important therefore that the remaining disabled drivers do not load the bus. To ensure this, the ADM1485 driver features high output impedance when disabled and also when POWERed down.
This minimizes the loading effect when the TRANSCEIVER is not being utilized. The high impedance driver output is maintained over the entire common-mode voltage range from –7 V to +12 V.
The receiver contains a fail safe feature which results in a logic high output state if the inputs are unconnected (floating).
The ADM1485 is fabricated on BiCMOS, an advanced mixed technology process combining LOW POWER CMOS with fast switching bipolar technology. All inputs and outputs contain protection against ESD; all driver outputs feature high source and sink current capability. An epitaxial layer is used to guard against latch-up.
The ADM1485 features extremely fast switching speeds. Minimal driver propagation delays permit transmission at data rates up to 30 Mbits/s while LOW skew minimizes EMI interference.
The part is fully specified over the commercial and industrial temperature range and is available in an 8-lead DIL/SOIC package.

FEATURES
   Meets EIA RS-485 Standard
   30 Mb/s Data Rate
   Single +5 V Supply
   –7 V to +12 V Bus Common-Mode Range
   High Speed, LOW POWER BiCMOS
   Thermal Shutdown Protection
   Short Circuit Protection
   Zero Skew Driver
   Driver Propagation Delay: 10 ns
   Receiver Propagation Delay: 25 ns
   High Z Outputs with POWER Off
   Superior Upgrade for LTC1485
  
APPLICATIONS
   LOW POWER RS-485 Systems
   DTE-DCE Interface
   Packet Switching
   Local Area Networks
   Data Concentration
   Data Multiplexers
   Integrated Services Digital Network (ISDN)

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Part Name(s) : DS36C280N DS36C280TN National-Semiconductor
National ->Texas Instruments
Description : Slew Rate Controlled CMOS EIA-RS-485 TRANSCEIVER

General Description
The DS36C280 is a LOW POWER differential bus/line TRANSCEIVER designed to meet the requirements of RS-485 Standard for multipoint data transmission. In addition, it is compatible with TIA/EIA-422-B.
The slew rate control feature alLOWs the user to set the driver rise and fall times by using an external resistor. Controlled edge rates can reduce switching EMI.

Features
■ 100% RS-485 compliant
    — Guaranteed RS-485 device interoperation
LOW POWER CMOS design: ICC 500 µA max
■ Adjustable slew rate control
    — Minimizes EMI affects
■ Built-in POWER up/down glitch-free circuitry
    — Permits live TRANSCEIVER insertion/displacement
■ SOIC packages
■ Industrial temperature range: −40˚C to +85˚C
■ On-board thermal shutdown circuitry
    — Prevents damage to the device in the event of excessive POWER dissipation
■ Wide common mode range: −7V to +12V
■ Receiver open input fail-safe (Note 1)
■ 1⁄4 unit load (DS36C280): ≥128 nodes
■ 1⁄2 unit load (DS36C280T): ≥64 nodes
■ ESD (human body model): ≥2 kV

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Part Name(s) : ADM3485EAN ADI
Analog Devices
Description : ESD Protected, EMC Compliant, 3.3 V, 20 Mbps, EIA RS-485 TRANSCEIVER

GENERAL DESCRIPTION
The ADM3485E is a LOW POWER differential line TRANSCEIVER designed to operate using a single +3.3 V POWER supply. LOW POWER consumption makes it ideal for POWER sensitive applications. It is suitable for communication on multipoint bus transmission lines. Internal protection against electrostatic discharge (ESD) and electrical fast transient (EFT) alLOWs operation in electrically harsh environments.
It is intended for balanced data transmission and complies with both EIA Standards RS-485 and RS-422. It contains a differential line driver and a differential line receiver, and is suitable for half duplex data transfer.
The input impedance is 19 kΩ alLOWing up to 50 TRANSCEIVERs to be connected on the bus.

FEATURES
   Operates with +3.3 V Supply
   ESD Protection: 8 kV Meets IEC1000-4-2
   EFT Protection: 2 kV Meets IEC1000-4-4
   EIA RS-422 and RS-485 Compliant Over Full CM Range
   19 kΩ Input Impedance
   Up to 50 TRANSCEIVERs on Bus
   20 Mbps Data Rate
   Short Circuit Protection
   Specified Over Full Temperature Range
   Thermal Shutdown
   Interoperable with 5 V Logic
   1 mA Supply Current
   2 nA Shutdown Current
   8 ns Skew

APPLICATIONS
   Telecommunications
   DTE-DCE Interface
   Packet Switching
   Local Area Networks
   Data Concentration
   Data Multiplexers
   Integrated Services Digital Network (ISDN)
   AppleTalk
   Industrial Controls

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Part Name(s) : ST485B ST485C ST-Microelectronics
STMicroelectronics
Description : LOW POWER RS-485/RS-422 TRANSCEIVER

Description
The ST485 is al LOW POWER TRANSCEIVER for RS-485 and RS-422 communication. Each part contains
one driver and one receiver. This TRANSCEIVER draw 300 µA (typ.) of supply current when unloaded or fully loaded with disabled drivers. It operates from a single 5 V supply.
Driver is short-circuit current limited and is protected against excessive POWER dissipation by
thermal shutdown circuitry that placed the driver outputs into a high-impedance state.
The ST485 is designed for bi-directional data communications on multipoint bus transmission
line (half-duplex applications).

Features
LOW quiescent current: 300 µA
■ Designed for RS-485 interface application
■ -7 V to 12 V common mode input voltage range
■ Driver maintains high impedance in 3-state or with the POWER OFF
■ 70 mV typical input hysteresis
■ 30 ns propagation delay, 5 ns skew
■ Operate from a single 5 V supply
■ Current limiting and thermal shutdown for driver overload protection
■ AlLOWs up to 64 TRANSCEIVERs on the bus

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Part Name(s) : ST485AB ST485ABDR ST485ABN ST-Microelectronics
STMicroelectronics
Description : Very high speed LOW POWER RS-485/RS-422 TRANSCEIVER

Description
The ST485A is a LOW POWER, high speed TRANSCEIVER for RS-485 and RS-422 communications. The device contains one driver and one receiver in half duplex configuration. The ST485A draws 3 mA (typ.) of supply current when unloaded or fully loaded with disabled drivers. It operates from a single 5 V supply.

Features
LOW supply current: 5 mA max
■ High data rate > 30 Mbps
■ Designed for RS 485 interface applications
■ -7 to 12 common mode input voltage range
■ Driver maintains high impedance in 3-state or with the POWER off
■ 70mV typical input hysteresis
■ Operate from single 5 supply
■ ±4 kV ESD protection
■ Current limiting and thermal shutdown for driver overload protection
■ Latch-up free up to 500 mA

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Part Name(s) : ST485A ST485ACN ST485ABN ST485ACDR ST485ABDR STMICROELECTRONICS
STMicroelectronics
Description : Very high speed LOW POWER RS-485/RS-422 TRANSCEIVER

Description
The ST485A is a LOW POWER, high speed TRANSCEIVER for RS-485 and RS-422 communications. The device contains one driver and one receiver in half duplex configuration. The ST485A draws 3mA (typ.) of supply current when unloaded or fully loaded with disabled drivers. It operates from a single 5V supply.

General features
LOW supply current: 5mA max
■ High data rate > 30Mbps
■ Designed for RS 485 interface applications
■ -7 to 12 common mode input voltage range
■ Driver maintains high impedance in 3-state or with the POWER off
■ 70mV typical input hysteresis
■ Operate from single 5 supply
■ ±4kV ESD protection
■ Current limiting and thermal shutdown for driver overload protection
■ Latch-up free up to 500mA

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Part Name(s) : DS485 DS485M DS485MX DS485N DS485TM DS485TMX DS485TN National-Semiconductor
National ->Texas Instruments
Description : LOW POWER RS-485/RS-422 Multipoint TRANSCEIVER

General Description
The DS485 is a LOW-POWER TRANSCEIVER for RS-485 and RS-422 communication. The device contains one driver and one receiver. The drivers slew rate alLOWs for operation up to 2.5 Mbps (see Applications Information section).
The TRANSCEIVER draws 200 µA of supply current when unloaded or fully loaded with the driver disabled and operates from a single +5V supply.

Features
■ Meets TIA/EIA RS-485 multipoint standard
■ Guaranteed full load output voltage (V OD3)
LOW quiescent current: 200 µA typ
■ −7V to +12V common-mode input voltage range
■ TRI-STATE outputs on driver and receiver
■ AC performance:
   — Driver transition time: 25 ns typ
   — Driver propagation delay: 40 ns typ
   — Driver skew: 1 ns typ
   — Receiver propagation delay: 200 ns typ
   — Receiver skew: 20 ns typ
■ Half-duplex fLOW through pinout
■ Operates from a single 5V supply
■ AlLOWs up to 32 TRANSCEIVERs on the bus
■ Current-limiting and thermal shutdown for driver overload protection
■ Industrial temperature range operation
■ Pin and functional compatible with MAX485 and LTC485

 

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Part Name(s) : MAX3160E MAX3160ECAP MAX3160EEAP MAX3160EEVKIT MAX3161E MAX3161ECAG MAX3161EEAG MAX3162E MAX3162ECAI MAX3162EEAI MAX3161ECAG-T MaximIC
Maxim Integrated
Description : ±15kV ESD-Protected, +3.0V to +5.5V, 10nA, RS-232/RS-485/RS-422 Multiprotocol TRANSCEIVERs

General Description
The MAX3160E/MAX3161E/MAX3162E are programmable RS-232/RS-485/RS-422 multiprotocol TRANSCEIVERs. The MAX3160E/MAX3161E are pin programmable as a 2Tx/2Rx RS-232 interface or a single RS-485/RS-422 TRANSCEIVER. The MAX3162E is configured as a 2Tx/2Rx RS-232 interface, and a single RS-485/RS-422 TRANSCEIVER simultaneously.

Features
♦ Single Supply Operation from +3V to +5.5V
♦ ESD Protection ±15kV Human Body Model
♦ Pin-Selectable as 2Tx/2Rx RS-232 or Single RS-485/RS-422 (MAX3160E/MAX3161E)
♦ 2Tx/2Rx RS-232 and Single RS-485/RS-422 (MAX3162E)
♦ Pin-Selectable RS-232/RS-485 Transmitter Slew Rates Reduce EMI
♦ 10Mbps RS-485 and 1Mbps RS-232 Data Rates
♦ Pin-Selectable Half-Duplex or Full-Duplex RS-485/RS-422 Operation (MAX3160E/MAX3161E)
RS-485/RS-422 True Fail-Safe Receivers
♦ 10nA Shutdown Supply Current
♦ 1/8-Unit Load AlLOWs up to 256 TRANSCEIVERs on the Bus

Applications
Point-of-Sales Equipment
Peripherals
Industrial Controls
Networking
RS-232 to RS-485
Security Systems
Interface Converters

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