ECLAMP2455K.TCT Semtech

EClamp2455K ESD/EMI Protection for SIM Card TM PPROTECTION PRODUCTS - EMIClampROTECTION PRODUCTS PRELIMINARY Features Description TM The EClamp 2455K is combination EMI filter and line Bidirectional EMI/RFI filter with integrated TVS termination device with integrated TVS diodes for use on for ESD protection SIM Card interfaces on cellular phones and other por- ESD protection to IEC 61000-4-2 (ESD) Level 4, table electronics. This state-of-the-art device utilizes 15kV (air), 8kV (contact) solid-state silicon-avalanche technology for superior TVS working voltage: 5V clamping performance and DC electrical characteristics. Termination Resistors: 100 Ohms & 47 Ohms Capacitance: 20pF (Typical at VR = 0V) The device consists of three circuits that include series Protection and filtering for four lines impedance matching resistors for proper termination of Solid-state technology the SIM card interface. Termination resistor value of 100 Ohms is included on the RST and Data lines and 47 Ohms on the CLK line. TVS diodes are also included on Mechanical Characteristics each line for ESD protection in excess of 15kV (air discharge) and 8kV (contact discharge) per IEC 61000- SLP1713P8 8-pin package 4-2, level 4. An additional TVS diode connection is RoHS/WEEE Compliant included for protection of the voltage (Vcc) bus. Nominal Dimensions: 1.7 x 1.3 x 0.50 mm Lead Pitch: 0.4mm The EClamp2455K is in a 8-pin, RoHS/WEEE compli- Lead finish: NiPdAu ant, SLP1713P8 package. It measures 1.7 x 1.3 x Marking: Marking Code 0.50mm. The leads are spaced at a pitch of 0.4mm Packaging: Tape and Reel per EIA 481 and are finished with lead-free NiPdAu. The small package makes it ideal for use in portable electronics Applications such as cell phones and digital still cameras. SIM Card Cell Phone PDAs and Smartphones Pin Configuration Package Configuration 1.70 1 2 1.30 1 8 RST In RST Out CLK Out CLK In Gnd 0.40 BSC Data In Data Out 45 Vcc NC 0.50 Pin Identification and Configuration 8 Pin SLP package (Bottom Side View) (Top Side View) Nominal Dimensions in mm www.semtech.com Revision 03/27/2007 1EClamp2455K PROTECTION PRODUCTS PRELIMINARY Pin Identification and Configuration PlinSnymbo Identificatio Reset input/output with 1T, 8 RS 5 8 76 termination resistor Clock input/output with 2K, 7 CL termination resistor Gnd Data input/output with 3a, 6 Dat 142 3 termination resistor 4CNtNo Connec Pin Configuration (Top View) Power Supply ESD 5cVc Protection Center GnND Ground connectio tab Schematics & Component Values Vcc 100 RST IN RST OUT 47 CLK IN CLK OUT 100 Data OUT Data IN GND www.semtech.com 2007 Semtech Corp. 2