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| CD1284 Datasheet, PDF (85/176 Pages) Intel Corporation – IEEE 1284-Compatible Parallel Interface Controller with Two High-Speed Asynchronous Serial Ports | |||
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IEEE 1284-Compatible Parallel Interface Controller â CD1284
Figure 13. Cable Connection
BIDIRECTIONAL
SIGNAL LINE
+5 V
1.2 k⦠1.2 kâ¦
20 â¦
OUTPUT
SIGNAL LINE
20 â¦
INPUT
SIGNAL LINE
CD1284
TRANSIENT
PROTECTION
Caution: Transient protection is not implemented inside the CD1284 device, therefore transient voltages may cause
damage. Laboratory testing has shown that this type of protection is not necessary under normal conditions.
However, damage may occur under harsh conditions or when subjected to unusual abuse. Also note, the protection
circuit shown here may cause a powered-up host to supply power to the +5 V (Vcc) of the peripheral if it is not
powered up. If this is a concern, then another protection circuit must be designed.
Datasheet
85
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