Datasheet

ManualsBrandsSTMICROELECTRONICS ManualsInterface ICsInterface IC - transceivers RS422, RS485 1/1 SO 8

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ST490AB Pin configuration

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1 Pin configuration

Figure 1. Pin connections

Table 2. Pin description

Pin n° Symbol Name and function

1V

CC

Supply voltage

2 RO Receiver output

3 DI Driver input

4 GND Ground

5 Y Non-inverting driver output

6 Z Inverting driver output

7 B Inverting receiver input

8 A Non-inverting receiver input