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The ISL3034E, ISL3035E, ISL3036E 4- and 6-channel bi-directional, auto-direction sensing, level translators provide the required level shifting in multi-voltage systems at data transfer rates up to 100Mbps. The auto-direction sensing feature makes the ISL3034E, ISL3035E, ISL3036E ideally suited for memory-card level translation (or for generic four to six channel level translation) especially if bit-by-bit direction control is desired. The V_CC and V_L supply voltages set the logic levels on either side of the device. Logic signals present on the IC's V_L side appear as higher voltage logic signals on the IC's V_CC side and vice versa. The ISL3035E features a CLK_RET output that returns the same clock signal applied to the CLK_V_L input, but with timing that mimics the data returning from the I/OV_CC inputs.

The ISL3034E, ISL3035E, ISL3036E operate at full speed with external input drivers that source as little as 4mA output current. Each I/O channel is pulled up to V_CC or V_L by an internal 30µA current source, allowing the ISL3034E, ISL3035E, ISL3036E to be driven by either push-pull or open-drain drivers.

The ISL3034E and ISL3036E include an enable (EN) input that when driven low places the IC into a low-power shutdown mode, with all I/O lines tri-stated. All versions feature an automatic shutdown mode, that places the part in the same shutdown state when V_CC is less than V_L. The states of I/OV_CC and I/OV_L during shutdown are chosen by selecting the appropriate product.

The ISL3034E, ISL3035E, ISL3036E operate with V_CC voltages from +2.2V to +3.6V and V_L voltages from +1.35V to +3.2V, making them ideal for data transfer between low-voltage microcontrollers or ASICs and higher voltage components.

Key Features

• Best-In-Class ESD Protection: ±15kV IEC61000-4-2 ESD Protection on ALL Input, Output, and I/O Lines
• 100Mbps Guaranteed Data Rate
• Four (ISL3036) or Six (ISL3034, ISL3035) Bi-directional Channels
• Auto-direction Sensing Eliminates Direction Control Logic Pins
• Enable Input (ISL3034E, ISL3036E) for Logic Control of Low Power SHDN Mode
• Clock Return Output (ISL3035E)
• Compatible with 4mA Input Drivers or Larger
• +1.35V ≤ VL ≤ +3.2V and +2.2V ≤ VCC ≤ +3.6V Supply Voltage Range
• Pb-Free (RoHS Compliant)
• 16Ld µTQFN (2.6mmx1.8mm), 16 Ld TQFN (3mmx3mm), and 14 Ld QFN (3.5mmx3.5mm) Packages

Applications

• Simplifies the Interface Between Two Logic ICs Operating at Different Supply Voltages
• SD Card and MiniSD Card Level Translation
• MMC (Multi Media Card) Level Translation
• Memory Stick Card Level Translation