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ISL33003MSOPEVAL1Z Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL33003MSOPEVAL1Z Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 18 page 1 I2C Bus Buffer with Rise Time Accelerators and Hot Swap Capability ISL33001, ISL33002, ISL33003 The ISL33001, ISL33002, ISL33003 are 2-Channel Bus Buffers that provide the buffering necessary to extend the bus capacitance beyond the 400pF maximum specified by the I2C specification. In addition, the ISL33001, ISL33002, ISL33003 feature rise time accelerator circuitry to reduce power consumption from passive bus pull-up resistors and improve data-rate performance. All devices also include hot swap circuitry to prevent corruption of the data and clock lines when I2C devices are plugged into a live backplane, and the ISL33002 and ISL33003 add level translation for mixed supply voltage applications. The ISL33001, ISL33002, ISL33003 operate at supply voltages from +2.3V to +5.5V at a temperature range of -40°C to +85°C. Related Literature • AN1543, “ISL33001MSOPEVAL1Z, ISL33002MSOPEVAL1Z, ISL33003MSOPEVAL1Z Evaluation Board User’s Manual” • AN1637, “Level Shifting Between 1.8V and 3.3V Using I2C Buffers” Features •2 Channel I2C compatible bi-directional buffer • +2.3VDC to +5.5VDC supply range • >400kHz operation • Bus capacitance buffering • Rise time accelerators • Hot swapping capability • ±6kV Class 3 HBM ESD protection on all pins • ±12kV HBM ESD protection on SDA/SCL pins • Enable pin (ISL33001 and ISL33003) • Logic level translation (ISL33002 and ISL33003) • READY logic pin (ISL33001) • Accelerator disable pin (ISL33002) • Pb-free (RoHS Compliant) 8 Ld SOIC (ISL33001 only), 8 Ld TDFN (3mmx3mm) and 8 Ld MSOP packages • Low quiescent current . . . . . . . . . . . . . . . . . . . . . . . 2.1mA typ • Low shutdown current . . . . . . . . . . . . . . . . . . . . . . . . 0.5µA typ Applications •I2C bus extender and capacitance buffering • Server racks for telecom, datacom, and computer servers • Desktop computers • Hot-swap board insertion and bus isolation Summary of Features PART NUMBER LEVEL TRANSLATION ENABLE PIN READY PIN ACCELERATOR DISABLE ISL33001 No Yes Yes No ISL33002 Yes No No Yes ISL33003 Yes Yes No No FIGURE 1. TYPICAL OPERATING CIRCUIT FIGURE 2. BUS ACCELERATOR PERFORMANCE GND SDA SCL +3.3V VCC2 µC BACK PLANE ISL33003 EN VCC1 +5.0V DEVICE SDA SCL I2C DEVICE A B I2C TIME (2µs/DIV) 100kHz I2C BUS WITH 2.7kΩ PULL-UP RESISTOR AND 400pF BUS CAPACITANCE WITHOUT BUFFER WITH BUFFER July 11, 2014 FN7560.6 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas LLC. 2010-2014. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. |
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