ISL3178E Description
These devices have very low bus currents (+125µA/-100µA), so they present a true “1/8 unit load” to the RS-485 bus. This allows up to 256 transceivers on the network without violating the RS-485 specification’s 32 unit load maximum, and without using repeaters. For example, in a remote utility meter reading system, individual meter readings are routed to a concentrator using an RS-485 network, so the high allowed...
ISL3178E Key Features
- IEC61000-4-2 ESD protection on RS-485 I/O pins . ±15kV
- HBM Class 3 ESD level on all other pins
- Full fail-safe (open, short, terminated/floating) receivers
- Hot plug
- Tx and Rx outputs remain three-state during
- True 1/8 unit load allows up to 256 devices on the bus
- Single 3.3V supply
- High data rates
- up to 20Mbps
- Low quiescent supply current
ISL3178E Applications
- IEC61000-4-2 ESD protection on RS-485 I/O pins . ±15kV