Features
- Pb-Free (RoHS Compliant)
- RS-485 I/O Pin ESD Protection: ±15kV HBM
- Class 3 ESD Level on all Other Pins: >7kV HBM
- Full Fail-safe (Open, Short, Terminated/Floating) Receivers
- Hot Plug - Tx and Rx Outputs Remain Three-state During Power-up (Only Versions with Output Enable Pins)
- 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: 800μA (Max)
- Ultra Low Shutdown Supply Current: 10nA
- -7V to +12V Common Mode Input/Output Voltage Range
- Half and Full Duplex Pinouts
- Three State Rx and Tx Outputs Available
- Current Limiting and Thermal Shutdown for driver Overload Protection
- Tiny MSOP package offering saves 50% board space
Description
The Intersil ISL8307XE are BiCMOS 3. 3V powered, single transceivers that meet both the RS-485 and RS-422 standards for balanced communication. These devices have very low bus currents (+125mA/-100mA), 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 via an RS-485 network, so the high allowed node count minimizes the number of repeaters required. Receiver (Rx) inputs feature a “Full Fail-Safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or terminated but undriven. Hot Plug circuitry ensures that the Tx and Rx outputs remain in a high impedance state while the power supply stabilizes. The ISL83070E through ISL83075E utilize slew rate limited drivers which reduce EMI, and minimize reflections from improperly terminated transmission lines, or unterminated stubs in multidrop and multipoint applications. Slew rate limited versions also include receiver input filtering to enhance noise immunity in the presence of slow input signals. The ISL83070E, ISL83071E, ISL83073E, ISL83076E, ISL83077E are configured for full duplex (separate Rx input and Tx output pins) applications. The half duplex versions multiplex the Rx inputs and Tx outputs to allow transceivers with output disable functions in 8 lead packages.
Parameters
| Attributes | Value |
|---|---|
| Temp. Range (°C) | -40 to +85°C |
| Devices Allowed on Bus | 256 |
Application Block Diagrams
 | 20kW 3-phase PFC Inverter The 3-phase PFC inverter uses Renesas MCUs for efficient control communication and supports up to 20kW power. |
Additional Applications
- Automated Utility Meter Reading Systems
- High Node Count Systems
- Field Bus Networks
- Security Camera Networks
- Building Environmental Control/Lighting Systems
- Industrial/Process Control Networks
Complete Your Design
Explore complementary products to elevate your design
Renesas Boards & Kits
RZ/N2L Remote I/O Solution Kit
The RZ/N2L Remote I/O Solution Kit is a development kit for evaluating remote I/O applications using the RZ/N2L Gateway Solution Board which is equipped with digital IO interface with photocoupler isolation and analog input and supports industrial network communications such as EtherCAT and... Read More
Support Communities
-
Difference between IS83078EIBZ and ADM483-EAR for UART-RS485 Converter
... is not working when I use ISL83078EIBZ for U1. I observe enable and tx signal is fine and same as in ADM483-EAR. But there is no communication. I mean it transmit but not receive. Why does not the circuit work with ISL83078EIBZ? Why does it work with ADM483-EAR?
Jul 19, 2018
Support Communities
