Intersil ISL3036E Best-in-class esd protected level translator Datasheet

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
ƒ +1.35V < VL < +3.2V (lower voltage logic supply)
ƒ +2.2V < VCC < +3.6V (higher voltage peripheral supply)
• Fast data rates
ƒ 100Mbps for VL ≥ 1.62V
ƒ 85Mbps for VL ≥ 1.35V
• Auto-direction sensing
• IEC61000-4-2 ESD protection on the VL and VCC I/O pins
ƒ 15kV air gap, 9kV contact
• 6 bidirectional channels
ƒ ISL3035E - Additional clock return pin
ƒ ISL3034E - Enable pin for software-controlled power down
• 4 bidirectional channels
ƒ 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
ƒ Interface components (RS-232/RS-485
transceivers, memory cards, etc.) typically
operate at supply voltages of 3.3V or higher
ƒ Core components (baseband processors,
μControllers, ASICs, and FPGAs) operate at
lower supply voltages (currently 1.8V)
ƒ Lower VCC logic typically cannot drive higher
VCC logic without translation circuitry
• Dual-supply level shifters solve the interfacing
problem
ƒ Shifts logic levels up/down to be compatible
with each of the supply voltages
ƒ Gives designers more flexibility in choosing
components for the application
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Germany
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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.
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