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Technical Specifications
Parameters and characteristics for this part
| Specification | SN75971B2DL |
|---|---|
| Duplex | Half |
| Mounting Type | Surface Mount |
| Number of Drivers/Receivers [custom] | 9 |
| Number of Drivers/Receivers [custom] | 9 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Package / Case | 0.295 in |
| Package / Case | 56-BSSOP |
| Package / Case | 7.5 mm |
| Protocol | RS422, RS485 |
| Receiver Hysteresis | 45 mV |
| Supplier Device Package | 56-SSOP |
| 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 | $ | |
|---|---|---|---|---|
| Texas Instruments | TUBE | 1 | $ 29.91 | |
| 100 | $ 26.59 | |||
| 250 | $ 21.86 | |||
| 1000 | $ 19.55 | |||
Description
General part information
SN75971B Series
The SN75971B SCSI differential converter-data is a 9-channel RS-485 transceiver. When used in conjunction with its companion control transceiver, the SN75970B, the resulting chip set provides the superior electrical performance of differential SCSI from a single-ended SCSI bus or controller. A 16-bit Ultra-SCSI (or Fast-20) SCSI bus can be implemented with just three devices (two data and one control) in the space efficient, 56-pin, shrink small-outline package (SSOP) or thin shink small outline package (TSSOP) and a few external components. An 8-bit SCSI bus requires only one data and one control transceiver.
The SN75971B is available in a B2 (20 Mxfer) version and a B1 (10 Mxfer) version.
In a typical differential SCSI node, the SCSI controller provides an enable for each external RS-485 transceiver channel. This could require as many as 27
Documents
Technical documentation and resources