ST1284-xxT8
FEATURES
One device for parallel port termination pliant with IEEE1284 standard EMI / RFI noise filtering Highly integrated solution in 28 pin QSOP and TSSOP packages One single device provides the proper termination for 8 datalines, 1 strobe line, 4 control lines and 4 statuts lines In system ESD protection of ±15 k V (air discharge) as per IEC61000-4-2 level 4 s s s s s s
SCHEMATIC DIAGRAM
Vcc R1 Vcc R1
Vcc R1
Vcc R2
1 2 3 4
Rs
28 27
Vcc R1 Vcc R1 Vcc R1 Vcc Rs R1 Vcc R1
26 25 24 23
Rs
Rs
DESCRIPTION
The ST1284-xx A8/T8 is a highly integrated termination for enhanced high speed parallel ports. The integrated termination plies to the IEEE1284 Standard remendations and government EMC patibility requirements. It is built around two basic cells. The first one (Cell 1) provides line termination, EMI filtering and ESD protection for the Strobe and Datalines while the second one (Cell 2) provides EMI filtering and ESD protection for the Control and Status lines....
