HWD1487
Description
The HWD481, HWD483, HWD485, HWD487-HWD491, and HWD1487 are low-power transceivers for RS-485 and RS422 munication.
Key Features
- The driver slew rates of the HWD481, HWD485, HWD490, HWD491, and HWD1487 are not limited, allowing them to transmit up to 2.5Mbps
- These transceivers draw between 120µA and 500µA of supply current when unloaded or fully loaded with disabled drivers
- Additionally, the HWD481, HWD483, and HWD487 have a low-current shutdown mode in which they consume only 0.1µA
- All parts operate from a single 5V supply
- The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit
- The HWD487 and HWD1487 feature quarter-unit-load receiver input impedance, allowing up to 128 HWD487/ HWD1487 transceivers on the bus
