CD1283 Datasheet, PDF (43/94 Pages) Intel Corporation – IEEE 1284-Compatible Parallel Interface

IEEE 1284-Compatible Parallel Interface — CD1283
Figure 10. Cable Connection
+5 V
CD1283
BIDIRECTIONAL
SIGNAL LINE
1.2 kΩ 1.2 kΩ
20 Ω
OUTPUT
SIGNAL LINE
20 Ω
INPUT
SIGNAL LINE
TRANSIENT
PROTECTION
Caution:
Transient protection is not implemented inside the CD1283 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 (V_cc) of the peripheral if
it is not powered up. If this is a concern, then another protection circuit must be
designed.
Datasheet
43