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MAX1487 Slew-Rate Limited RS-485/RS-422 Transceivers Datasheet
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Product Details
The MAX1487 RS485 Transceiver is a low-power half-duplex transceiver for RS-485 and
RS-422 bus communication and is capable of data rates up to 2.5Mbs.
The IC contains both a driver and receiver for the RS-485 bus together with
protection against short-circuits and thermal overload.
The MAX1487 also features a quarter-unit-load receiver input impedance, which allows up to
128 transceivers on the RS-485 bus.
Features
- Low Quiescent Current - 230µA
- -7V to +12V Common-Mode Input Voltage Range
- Three State Outputs
- 30ns Propagation Delay, 5ns Skew
- Operates from a Single 5V Supply
- Up to 128 Transceivers on the Bus
- Current Limiting and Thermal Shutdown for Driver Overload Protection
Pin Layout
Pin Description
| Pin Number | Description |
|---|---|
| 1 | RO - Receiver Output |
| 2 | RE - Receiver Output Enable |
| 3 | DE - Driver Output Enable |
| 4 | DI - Driver Input |
| 5 | GND - Ground |
| 6 | A - Noninverting Receiver Input |
| 7 | B - Inverting Receiver Input |
| 8 | Vcc - +5V Power Supply |
Dimensional Drawing
Technical Data
