ST1284 Parallel port single termination network with 15 kV ESD protection Datasheet - production data Applications ECP/EPP parallel port termination on: Desktops Notebooks Workstations Servers PC peripherals Set top box Description QSOP28 The ST1284-01A8 is a highly integrated termination for enhanced high speed parallel ports. The integrated termination complies to the IEEE1284 standard recommendations and Features government EMC compatibility requirements. It is One device for parallel port termination built around two basic cells. The first one (cell 1) Compliant with IEEE1284 standard provides line termination, EMI filtering and ESD EMI / RFI noise filtering protection for the strobe and data lines while the Highly integrated solution in a 28 pin QSOP second one (cell 2) provides EMI filtering and package ESD protection for the control and status lines. One single device provides the proper In addition, ST1284-01A8 provides extra termination for 8 data lines, 1 strobe line, 4 protection against ESD. When tested according control lines and 4 status lines to IEC 61000-4-2, they withstand 8 kV contact In system ESD protection of 15 kV (air discharges and 15 kV air discharges, thereby discharge) as per IEC 61000-4-2 level 4 providing to the system the necessary robustness ECOPACK 2 compliant component to meet up to level 4 of IEC 61000-4-2, without the need for additional ESD protection Complies with the following standards components. IEC 61000-4-2, level 4 15 kV (air discharge) 8 kV (contact discharge) MIL STD 883G-Method 3015-7: class 3 25 kV (human body model) May 2017 DocID6976 Rev 6 1/12 www.st.com This is information on a product in full production. Characteristics ST1284 Figure 1: Schematic diagram Vcc Vcc Vcc Vcc R1 R1 R1 R2 1 28 C C C C 2 27 Vcc R1 Rs 3 26 Vcc C R1 Rs 4 25 Vcc C R1 Rs 5 24 Vcc C R1 Rs 6 23 Vcc C R1 Rs Gnd 7 22 Vcc C R2 8 21 Vcc C R1 Rs Vcc 9 20 Vcc C R2 10 19 Vcc C R1 Rs 11 18 Vcc C R2 12 17 Vcc C R1 Rs 13 16 Vcc Vcc C R1 R2 Rs 14 15 C C R1 R2 RS C Code 01 4.7 k 4.7 k 33 180 pF Tolerance 10 % 10 % 10 % 20 % 2/12 DocID6976 Rev 6