TPT487
Features
Description
- Exceeds Requirements of EIA-485 Standard
- Hot Plug Circuitry
- Tx and Rx Outputs Remain Three-
State during Power-up/Power-down
- Data Rate: 500 Kbps
- Up to 256 Nodes on a Bus (1/8 Unit Load) at 500 kbps
- Full Fail-Safe Receiver (Open, Short, and Terminated)
- Wide Supply Voltage: 3 V to 5.5 V
- Bus-Pin Protection:
- ±18-k V HBM ESD
- ±15-k V IEC61000-4-2 Contact Discharge
- ±18-k V IEC61000-4-2 Air Discharge
- Operation Temperature Range:
- 40°C to 125°C
Applications
The TPT487 is a series of IEC 61000 ESD-protected, 3-V to 5.5-V powered transceivers that meet the RS-485 and RS-422 standards for balanced munication.
Transmitters in this family deliver exceptional differential output voltages into the RS-485 required 54-Ω load. These 500-kbps devices have very low bus currents, so they present a true "1/8 unit load" to the RS-485 bus. This allows up to 256 transceivers on the network without using repeaters. Receiver (Rx) inputs feature a "Full Fail-Safe"...
