Home >
Integrated Circuits >
Special Function >
Maxim Integrated
MAX1480 RS485/RS422 Data Interface Datasheet
Photograph
Features
- Isolated Data Interface, Typically to 1600VRMS(1 minute)
- Slew-Rate Limited for Errorless Data Transmission
- Full-Duplex Data Communication
- -7V to +12V Common-Mode Input Voltage Range with Respect to Isolated Ground
- Single +5V Supply
- Current Limiting and Thermal Shutdown for Driver Overload Protection
Pin Layout
Pin Description
Pin Number | Description |
---|---|
1 | VCC1 - Logic-Side(non-isolated side) +5V Supply Voltages |
2 | VCC2 - Logic-Side(non-isolated side) +5V Supply Voltages |
3 | D1 - Internal Connections |
4 | D2 - Internal Connections |
5 | GND1 - Logic-Side Ground |
6 | FS - Frequency Select Input |
7 | SD - Shutdown Input |
8 | VCC3 - Logic-Side(non-isolated side) +5V Supply Voltages |
9 | DI - Driver Input |
10 | VCC4 - Logic-Side(non-isolated side) +5V Supply Voltages |
11 | DE - Driver-Enable Input |
12 | GND2 - Logic-Side Ground |
13 | RO - Receiver Output |
14 | VCC5 - Logic-Side(non-isolated side) +5V Supply Voltage |
15 | ISO RO LED - Isolated Receiver Output LED |
16 | ISO COM2 - Isolated Common |
17 | ISO DE DRV - Isolated Driver-Enable Drive |
18 | ISO Vcc2 - Isolated Supply Voltage |
19 | ISO DI DRV - Isolated Driver-Input Drive |
20 | ISO COM1 - Isolated Common |
21 | ISO DE IN - Isolated Driver-Enable Input |
22 | ISO DI IN - Isolated Driver Input |
23 | A - Noninverting Driver Output and Noninverting Receiver Input |
24 | ISO RO DRV - Isolated Receiver-Output Drive |
25 | B - Inverting Driver Output and Inverting Receiver Input |
26 | ISO Vcc1 - Isolated Supply Voltage Source |
27 | AC2 - Internal Connections |
28 | AC1 - Internal Connections |
Dimensional Drawing
Technical Data