| Number of receivers | 0 |
| Number of transmitters | 4 |
| Supply voltage (Nom) (V) | 5 |
| Signaling rate (Max) (Mbps) | 10 |
| Fault protection (V) | -10 to 15 |
| Common mode range | -7 to 12 |
| Number of nodes | 32 |
| Isolated | No |
| ICC (Max) (mA) | 7 |
| Rating | Military |
| Operating temperature range (C) | -55 to 125 |
- Meets Standard EIA-485
- Designed for High-Speed Multipoint Transmission on Long Bus Lines in Noisy Environments
- Supports Data Rates up to and Exceeding Ten Million Transfers Per Second
- Common-Mode Output Voltage Range of –7 V to 12 V
- Positive- and Negative-Current Limiting
- Low Power Consumption . . . 1.5 mA Max (Output Disabled)
LinBiCMOS is a trademark of Texas Instruments Incorporated.
The SN55LBC172 is a monolithic quadruple differential line driver with 3-state outputs. This device is designed to meet the requirements of the Electronics Industry Association (EIA) standard RS-485. The SN55LBC172 is optimized for balanced multipoint bus transmission at data rates up to and exceeding 10 million bits per second. The driver features wide positive and negative common-mode output voltage ranges, current limiting, and thermal-shutdown circuitry, making it suitable for party-line applications in noisy environments. The device is designed using the LinBiCMOS? process, facilitating ultralow power consumption and inherent robustness.
The SN55LBC172 provides positive- and negative-current limiting and thermal shutdown for protection from line fault conditions on the transmission bus line. This device offers optimum performance when used with the SN55LBC173M quadruple line receiver.
