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Technical Specifications
Parameters and characteristics for this part
| Specification | SN75ALS171DWR |
|---|---|
| Duplex | Half |
| Mounting Type | Surface Mount |
| Number of Drivers/Receivers [custom] | 3 |
| Number of Drivers/Receivers [custom] | 3 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Package / Case | 20-SOIC |
| Package / Case [y] | 0.295 in |
| Package / Case [y] | 7.5 mm |
| Protocol | RS422, RS485 |
| Receiver Hysteresis | 60 mV |
| Supplier Device Package | 20-SOIC |
| Type | Transceiver |
| Voltage - Supply [Max] | 5.25 V |
| Voltage - Supply [Min] | 4.75 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 8.94 | |
| Digi-Reel® | 1 | $ 8.94 | ||
| Tape & Reel (TR) | 2000 | $ 4.88 | ||
| Texas Instruments | LARGE T&R | 1 | $ 7.86 | |
| 100 | $ 6.41 | |||
| 250 | $ 5.04 | |||
| 1000 | $ 4.27 | |||
Description
General part information
SN75ALS171A Series
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 VCCis 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.
Documents
Technical documentation and resources
