SN75ALS171A

Name: SN75ALS171A
Brand: TI
SKU: SN75ALS171A
Price: 5.655 USD

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Dreifacher differenzieller Bus-Transceiver

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Datenblatt

document-pdfAcrobat Triple Differential Bus Transceivers datasheet (Rev. D) (Englisch)

SN75ALS171A

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Number of receivers

3

Number of transmitters

3

Duplex

Half

Supply voltage (nom) (V)

5

Signaling rate (max) (Mbps)

20

IEC 61000-4-2 contact (±V)

None

Fault protection (V)

-10 to 15

Common-mode range (V)

-7 to 12

Number of nodes

32

Isolated

No

Supply current (max) (µA)

90000

Rating

Catalog

Operating temperature range (°C)

0 to 70

Number of receivers

3

Number of transmitters

3

Duplex

Half

Supply voltage (nom) (V)

5

Signaling rate (max) (Mbps)

20

IEC 61000-4-2 contact (±V)

None

Fault protection (V)

-10 to 15

Common-mode range (V)

-7 to 12

Number of nodes

32

Isolated

No

Supply current (max) (µA)

90000

Rating

Catalog

Operating temperature range (°C)

0 to 70

SOIC (DW)

20

131.84 mm² 12.8 x 10.3

Three Bidirectional Transceivers
Driver Meets or Exceeds the Requirements of ANSI EIA/TIA-422-B and RS-485 and ITU Recommendation V.11
Two Skew Limits Available
Designed to Operate Up to 20 Million Data Transfers per Second (FAST-20 SCSI)
High-Speed Advanced Low-Power Schottky Circuitry
Low Pulse Skew...5 ns Max
Designed for Multipoint Transmission on Long Bus Lines in Noisy Environments
Features Independent Driver Enables and Combined Receiver Enables
Wide Positive and Negative Input/Output Bus Voltages Ranges
Driver Output Capacity...±60 mA
Thermal Shutdown Protection
Driver Positive- and Negative-Current Limiting
Receiver Input Impedances...12 k Min
Receiver Input Sensitivity...±300 mV Max
Receiver Input Hysteresis...60 mV Typ
Operates From a Single 5-V Supply
Glitch-Free Power-Up and Power-Down Protection

Three Bidirectional Transceivers
Driver Meets or Exceeds the Requirements of ANSI EIA/TIA-422-B and RS-485 and ITU Recommendation V.11
Two Skew Limits Available
Designed to Operate Up to 20 Million Data Transfers per Second (FAST-20 SCSI)
High-Speed Advanced Low-Power Schottky Circuitry
Low Pulse Skew...5 ns Max
Designed for Multipoint Transmission on Long Bus Lines in Noisy Environments
Features Independent Driver Enables and Combined Receiver Enables
Wide Positive and Negative Input/Output Bus Voltages Ranges
Driver Output Capacity...±60 mA
Thermal Shutdown Protection
Driver Positive- and Negative-Current Limiting
Receiver Input Impedances...12 k Min
Receiver Input Sensitivity...±300 mV Max
Receiver Input Hysteresis...60 mV Typ
Operates From a Single 5-V Supply
Glitch-Free Power-Up and Power-Down Protection

The SN75ALS171 and the SN75ALS171A triple differential bus transceivers are monolithic integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. They are designed for balanced transmission lines, and each driver meets ANSI Standards EIA/TIA-422-B and RS-485 and both the drivers and receivers meet ITU Recommendation V.11. The SN75ALS171A is designed for FAST-20 SCSI and can transmit or receive data pulses as short as 30 ns with a maximum skew of 5 ns.

The SN75ALS171 and the SN75ALS171A operate from a single 5-V power supply. The drivers and receivers have individual active-high and active-low enables, respectively, which can be externally connected together to function as a direction control. The driver differential output and the receiver differential input pairs are connected internally to form differential input/output (I/O) bus ports that are designed to offer minimum loading to the bus when the driver is disabled or V_CC is at 0 V. These ports feature wide positive and negative common-mode voltage ranges making the device suitable for party-line applications.

The SN75ALS171 and the SN75ALS171A are characterized for operation from 0°C to 70°C.

H = high level, L = low level, ? = indeterminate, X = irrelevant,
Z = high impedance (off)

The SN75ALS171 and the SN75ALS171A triple differential bus transceivers are monolithic integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. They are designed for balanced transmission lines, and each driver meets ANSI Standards EIA/TIA-422-B and RS-485 and both the drivers and receivers meet ITU Recommendation V.11. The SN75ALS171A is designed for FAST-20 SCSI and can transmit or receive data pulses as short as 30 ns with a maximum skew of 5 ns.

The SN75ALS171 and the SN75ALS171A operate from a single 5-V power supply. The drivers and receivers have individual active-high and active-low enables, respectively, which can be externally connected together to function as a direction control. The driver differential output and the receiver differential input pairs are connected internally to form differential input/output (I/O) bus ports that are designed to offer minimum loading to the bus when the driver is disabled or V_CC is at 0 V. These ports feature wide positive and negative common-mode voltage ranges making the device suitable for party-line applications.

The SN75ALS171 and the SN75ALS171A are characterized for operation from 0°C to 70°C.

H = high level, L = low level, ? = indeterminate, X = irrelevant,
Z = high impedance (off)

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	Typ	Titel		Datum
*	Data sheet	Triple Differential Bus Transceivers datasheet (Rev. D)		01 Sep 1995

SN75ALS171A

Dreifacher differenzieller Bus-Transceiver

SN75ALS171A

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