Intersil Interface Products Best-in-Class ESD Protected Level Translators The ISL3034E/35E/36E run at 100Mbps in 4/6 channel configurations. Connecting the level shifter to the two-system supplies allows it to shift voltages up/down for compatibility in mixed supply systems. +1.8V +3.3V 0.1μF 0.1μF VL +1.8V 1μF VCC +3.3V LEVEL SHIFTER SYSTEM CONTROLLER Tiny 2.6mm x 1.8mm 16 leadless μTQFN package. ISL3035E DAT3 I/OVL I/OVCC DAT3 DAT2 I/OVL I/OVCC DAT2 DAT1 I/OVL I/OVCC DAT1 DAT0 I/OVL I/OVCC DAT0 CMD I/OVL I/OVCC CMD CLOCK CLOCK_IN SD CARD CLOCK CLK_VL CLK_VCC CLK_RET GND GND GND Auto-direction Sensing ±15kV ESD Protection (HBM and IEC61000-4-2 Air Gap) on Both the VCC and VL Sides Eliminates direction control logic pins and associated software control. Provides superior protection from ESD events. These devices are small and located next to connectors making them vulnerable on both supply sides. 100Mbps Data Rate Supports high-speed SD memory cards. Intersil’s Voltage Level Translators Part Number Package Type Data Rate (Mbps) Number of Channels EN Pin? I/O VL SHDN State ISL3034E 16 Ld μTQFN, 16 Ld TQFN 100 6 YES 16.5kΩ to VL 16.5kΩ to VCC ISL3035E 16 Ld μTQFN, 16 Ld TQFN 100 6 NO 75kΩ to VL High Impedance ISL3036E 16 Ld μTQFN, 14 Ld QFN 100 4 YES 16.5kΩ to VL 16.5kΩ to VCC www.intersil.com/interface I/O VCC SHDN State Voltage Level Translators Key Features • Voltage range +1.35V < VL < +3.2V (lower voltage logic supply) +2.2V < VCC < +3.6V (higher voltage peripheral supply) • Fast data rates 100Mbps for VL ≥ 1.62V 85Mbps for VL ≥ 1.35V • Auto-direction sensing • IEC61000-4-2 ESD protection on the VL and VCC I/O pins 15kV air gap, 9kV contact • 6 bidirectional channels ISL3035E - Additional clock return pin ISL3034E - Enable pin for software-controlled power down • 4 bidirectional channels ISL3036E - Enable pin for software-controlled power down • Industrial temp range (-40°C to +85°C) • Small TQFN and μTQFN package options 2 VCC = 3.6V, VL = 1.5V 1 0 CLK_VCC OUTPUT (V) CLK_VL INPUT (V) High-Speed Data Transfer 4 3 CLK_RET OUTPUT (V) 2 1 0 2 1 0 TIME (4ns/DIV) ISL3035E CLOCK WAVEFORMS (100Mbps) Why are level shifters needed? • Simplifies the interconnection between two ICs operating at different supply voltages Interface components (RS-232/RS-485 transceivers, memory cards, etc.) typically operate at supply voltages of 3.3V or higher Core components (baseband processors, μControllers, ASICs, and FPGAs) operate at lower supply voltages (currently 1.8V) Lower VCC logic typically cannot drive higher VCC logic without translation circuitry • Dual-supply level shifters solve the interfacing problem Shifts logic levels up/down to be compatible with each of the supply voltages Gives designers more flexibility in choosing components for the application Intersil Main Offices NORTH AMERICA WEST COAST Intersil Headquarters 1001 Murphy Ranch Road Milpitas, CA 95035 (TEL) 408-432-8888 (FAX) 408-434-5351 1-888-INTERSIL 1-888-468-3774 EUROPE EAST COAST 1650 Robert J Conlan Blvd NE Palm Bay, FL 32905 (TEL) 321-724-7000 (FAX) 321-729-7320 1-888-INTERSIL 1-888-468-3774 Intersil GmbH Oskar-Messter-Str. 29 D-85737 Ismaning Germany (TEL) +49 89 46263 0 (FAX) +49 89 46263 148 ASIA PACIFIC Suite 1611, 16/F Tower 2 Silvercord, 30 Canton Road, Tsimshatsui, Kowloon Hong Kong (TEL) +852-2709-7600 (FAX) +852-2730-1433 JAPAN 6F, Mita Nitto Daibiru 3-11-36, Mita, Minato-ku Tokyo, 108-0073 Japan (TEL) +81-3-5439-2311 (FAX) +81-3-5439-2300 LC-079.0 Printed in USA 4/09 © 2009 Intersil Americas Inc. All Rights Reserved. The following are trademarks or registered trademarks of Intersil Americas Inc.: Intersil, Intersil logo, “i” and Design. All other trademarks are the property of the respective trademark owners.