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Technical Specifications
Parameters and characteristics for this part
| Specification | SN75ALS170DW |
|---|---|
| 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 | Tube | 1 | $ 10.55 | |
| 10 | $ 9.53 | |||
| 25 | $ 9.09 | |||
| 100 | $ 7.89 | |||
| 250 | $ 7.54 | |||
| 500 | $ 6.87 | |||
| 1000 | $ 5.98 | |||
| Texas Instruments | TUBE | 1 | $ 9.43 | |
| 100 | $ 7.69 | |||
| 250 | $ 6.04 | |||
| 1000 | $ 5.13 | |||
Description
General part information
SN75ALS170A Series
The SN75ALS170 and SN75ALS170A triple differential bus transceivers are monolithic integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines and the driver meets ANSI Standards EIA/TIA-422-B and RS-485 and both the driver and receiver meet ITU Recommendation V.11. The SN75ALS170A 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 SN75ALS170 and SN75ALS170A operate from a single 5-V power supply. The drivers and receivers have active-high and active-low enables, respectively, which are internally connected together to function as a direction control. The driver differential outputs and the receiver differential inputs 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 VCC= 0. These ports feature wide positive and negative common-mode voltage ranges making the device suitable for party-line applications.
The SN75ALS170 and the SN75ALS170A are characterized for operation from 0°C to 70°C.
Documents
Technical documentation and resources