ST1284-01T8RL中文资料

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July 2002 - Ed: 1B

s One device for parallel port termination s Compliant with IEEE1284standard s EMI /RFI noise filtering

s Highly integrated solution in 28pin QSOP and TSSOP packages

s One single device provides the proper termina-tion for 8datalines,1strobe line,4control lines and 4statuts lines

s

In system ESD protection of ±15kV (air dis-charge)as per IEC61000-4-2level 4

FEATURES

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/T8is a highly integrated termi-nation for enhanced high speed parallel ports.The integrated termination complies to the IEEE1284Standard 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-xxA8provides 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 4of IEC61000-4-2,without the need for addi-tional ESD protection components.Cells 1and 2are described in more detail in figures 1and 2.DESCRIPTION

R1

R2Rs C Code 01 4.7k ? 4.7k ?33?180pF Code 02 2.2k ? 2.2k ?33?220pF Code 031k ? 5.1k ?39?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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