SN888C
SN888C is Bus-Polarity Correcting RS-485 Transceiver manufactured by Texas Instruments.
FEATURES
- Exceeds Requirements of EIA-485 Standard
- Bus-Polarity Correction within 76 ms
- Data Rate: 300 bps to 250 kbps
- Works with Two Configurations:
- Failsafe Resistors Only
- Failsafe and Termination Resistors
- Up to 256 Nodes on a Bus
- SOIC-8 Package for Backward patibility
- Bus-Pin Protection:
- ±16 k V HBM protection
- ±12 k V IEC61000-4-2 Contact Discharge
- +4 k V IEC61000-4-4 Fast Transient Burst
APPLICATIONS
- E-meters
DESCRIPTION
The SN888C is a low-power RS-485 transceiver with bus-polarity correction and transient protection. Upon hot plug-in the device detects and corrects the bus polarity within the first 76 ms of bus idling. On-chip transient protection protects the device against IEC61000 ESD and EFT transients.
The SN888C is available in an SOIC-8 package. The device is characterized from
- 40°C to 85°C.
Vcc
1k A B 120
1k
Master SN65HVD82
POLCOR
Cross-wire fault...