DS9490B Datasheet, PDF (3/5 Pages) Dallas Semiconductor – USB to 1-Wire/iButton Adapter

PIN CONFIGURATION
Figure 4. 1-WIRE RJ11 SOCKET FOR DS9490R
PIN
SIGNAL
NAME
1
V_DD
2 GND
3 OW
4 GND_OW
5, 6 N.C.
6 N.C.
DESCRIPTION
5VDC Output
Power Ground
1-Wire Data
1-Wire Return
No Connection
No Connection
654321
Looking into Female RJ11
Figure 5. iBUTTON SOCKET FOR DS9490B
PIN
SIGNAL
NAME
1 OW
2 GND_OW
DESCRIPTION
1-Wire Data
1-Wire Return
2
DS9490
*
1
*Note: The data contact faces down and away from the embossed ‘i’. Once the iButton is inserted in the
enclosure, snap the end cap over it. The end cap is removed by depressing the release tab,
swinging it fully open, and sliding out the hinge.
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