MAX485 RS-485 Transceiver IC DIP-8 | 5V Half Duplex
MAX485 RS-485 Transceiver IC DIP-8 | 5V Half Duplex
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MAX485 RS-485 Transceiver IC
Add a differential serial link to your own circuit with this single MAX485 through-hole IC. It contains one driver and one receiver for half-duplex RS-485/RS-422 communication. This is the bare chip, not a ready-wired module or USB converter.
- Supply: 5 V (4.75–5.25 V operating range)
- Data rate: up to 2.5 Mb/s at the IC; practical bus speed depends on cable and layout
- Bus load: standard 1-unit-load receiver; up to 32 unit-load nodes on an RS-485 bus
- Package: 8-pin through-hole DIP, suitable for sockets and prototype boards
- Protection: driver current limiting and thermal shutdown; open-circuit receiver fail-safe output
Pin functions (top view, notch at top)
| Pin | Signal | Function |
|---|---|---|
| 1 | RO | Receiver output |
| 2 | /RE | Receiver enable, active low |
| 3 | DE | Driver enable, active high |
| 4 | DI | Driver input |
| 5 | GND | Ground |
| 6 | A | Non-inverting bus line |
| 7 | B | Inverting bus line |
| 8 | VCC | 5 V supply |
Connection notes
Power the IC from a regulated 5 V supply. Its RO output may reach 5 V, so protect a 3.3 V-only microcontroller input with suitable level shifting or choose a 3.3 V transceiver. Provide termination and idle biasing where your bus design requires them; these parts are not included.
Supplied: 1 × MAX485 DIP-8 transceiver IC. No breakout board, terminals or external resistors.
See the manufacturer MAX485 family datasheet for electrical limits and application circuits.
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