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ST1284-XXA8 Datasheet(PDF) 1 Page - STMicroelectronics |
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ST1284-XXA8 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 7 page 1/7 ST1284-xxA8/T8 ® July 2002 - Ed: 1B s One device for parallel port termination s Compliant with IEEE1284 standard s EMI / RFI noise filtering s Highly integrated solution in 28 pin QSOP and TSSOP packages s One single device provides the proper termina- tion for 8 datalines, 1 strobe line, 4 control lines and 4 statuts lines s In system ESD protection of ±15 kV (air dis- charge) as per IEC61000-4-2 level 4 FEATURES 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc Vcc Gnd Vcc Vcc Vcc Vcc Vcc R1 C R1 C R1 R2 C R1 R1 R1 R1 R1 R2 R1 R2 R1 R2 R1 R1 R2 C Rs C Rs C Rs C Rs C Rs C Rs C Rs C Rs Rs C C C C C C SCHEMATIC DIAGRAM PARALLEL PORT SINGLE TERMINATION NETWORK WITH ±15kV ESD PROTECTION A.S.D. TM ECP/EPP Parallel Port termination on: s Desktops s Notebooks s Workstations s Servers s PC Peripherals s Set Top Box MAIN APPLICATIONS The ST1284-xxA8/T8 is a highly integrated termi- nation for enhanced high speed parallel ports. The integrated termination complies to the IEEE1284 Standard recommendations and government EMC compatibility 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. In addition, ST1284-xxA8 provides extra protection against ESD. When tested according to IEC61000-4-2, they withstand ±8kV contact discharges and ±15kV air-discharges, thereby providing to the system the necessary robustness to meet up to level 4 of IEC61000-4-2, without the need for addi- tional ESD protection components. Cells 1 and 2 are described in more detail in figures 1 and 2. DESCRIPTION QSOP28 / TSSOP28 R1 R2 Rs C Code 01 4.7k Ω 4.7k Ω 33 Ω 180pF Code 02 2.2k Ω 2.2k Ω 33 Ω 220pF Code 03 1k Ω 5.1k Ω 39 Ω 150pF Tolerance ± 10% ± 10% ± 10% ± 20% - IEC61000-4-2 ±15kV (air discharge) ± 8kV (contact discharge) - MIL STD 883E - Method 3015-7 : Class 3 (human body model). COMPLIES WITH THE FOLLOWING ESD STANDARDS : |
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