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UPD4721 Datasheet(PDF) 10 Page - NEC

Part # UPD4721
Description  RS-232 LINE DRIVER/RECEIVER AT 3.3 V/5 V
PDF  16 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD4721 Datasheet(HTML) 10 Page - NEC

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µPD4721
Note 13. Measuring point
Note 14. Measuring point
Note 15. Measuring point
Receiver outputs are indefinite during transition time (tDHA).
0.7 V
2.7 V
2.0 V
0.8 V
tPLH
tPHL
+3 V
0 V
–3 V
VOH
VOL
RIN
ROUT
+3 V
0 V
–3 V
VOH
VOL
RIN
ROUT
2.0 V
0.8 V
0.7 V
2.7 V
tPLH
tPHL
0.6 V
2.4 V
2.0 V
0.8 V
tDAH
tDHA
VCC
0 V
VOH
VOL
STBY
ROUT



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