ISL3034E Datasheet, PDF (1/16 Pages) Intersil Corporation – 4-Channel And 6-Channel High Speed, Auto-direction Sensing Logic Level Translators

®
Data Sheet
ISL3034E, ISL3035E, ISL3036E
March 31, 2009
FN6492.0
4-Channel And 6-Channel High Speed,
Auto-direction Sensing Logic Level
Translators
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 (see Table 1).
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.
TABLE 1. SUMMARY OF FEATURES
DATA NUMBER
PART RATE
OF
EN I/OV_LSHDN
NUMBER (Mbps) CHANNELS PIN? STATE
I/OV_CC
SHDN
STATE
ISL3034E 100
ISL3035E 100
6
YES 16.5kΩ
16.5kΩ
to V_L
to V_CC
6
NO 75kΩ to V_L
High
Impedance
ISL3036E 100
4
YES 16.5kΩ
16.5kΩ
to V_L
to V_CC
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 ≤ V_L ≤ +3.2V and +2.2V ≤ V_CC ≤ +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
Typical Operating Circuit
+1.8V
0.1µF
+3.3V
0.1µF 1µF
+1.8V
SYSTEM
CONTROLLER
DAT3
DAT2
DAT1
DAT0
CMD
CLOCK
CLOCK_IN
V_L
V_CC
ISL3035E
I/OV_L I/OV_CC
I/OV_L I/OV_CC
I/OV_L I/OV_CC
I/OV_L I/OV_CC
I/OV_L I/OV_CC
CLK_V_LCLK_V_CC
CLK_RET
+3.3V
SD CARD
DAT3
DAT2
DAT1
DAT0
CMD
CLOCK
GND
GND
GND
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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