MAX14591_14 Datasheet, PDF (1/13 Pages) Maxim Integrated Products – High-Speed, Open-Drain Capable Logic-Level Translator

EVALUATION KIT AVAILABLE
MAX14591
High-Speed, Open-Drain Capable
Logic-Level Translator
General Description
The MAX14591 is a dual-channel, bidirectional logic-
level translator with the level shifting necessary to allow
data transfer in a multivoltage system. Externally applied
voltages, V_CC and V_L, set the logic levels on either side
of the device. A logic signal present on the V_L side of the
device appears as the same logic signal on the V_CC side
of the device, and vice-versa.
The device is optimized for the I²C bus as well as the
management data input/output (MDIO) bus where often
high-speed, open-drain operation is required. When TS
is high, the device allows the pullup to be connected to
the I/O port that has the power. This allows continuous
I²C operation on the powered side without any disruption
while the level translation function is off.
The part is specified over the extended -40NC to +85NC
temperature range, and is available in 8-bump WLP and
8-pin TDFN packages.
Applications
Devices with I²C Communication
Devices with MDIO Communication
General Logic-Level Translation
Benefits and Features
S Meets Industry Standards
 I²C Requirements for Standard, Fast, and
High* Speeds
 MDIO Open Drain Above 4MHz*
S Allows Greater Design Flexibility
 Down to 0.9V Operation on V_L Side
 Supports Above 8MHz Push-Pull Operation
S Offers Low Power Consumption
 23µA (typ) V_CC Supply Current
 0.5µA (typ) V_L Supply Current
S Provides High Level of Integration
 Pullup Resistor Enabled with One Side
Power Supply when TS Is High
 12kI (max) Internal Pullup
 Low Transmission Gate R_ON: 17I (max)
S Saves Space
 8-Bump, 0.4mm pitch, 0.8mm x 1.6mm WLP
Package
 8-Pin, 2mm x 2mm TDFN Package
*Requires external pullups.
Ordering Information appears at end of data sheet.
VL = +1.2V
+1.2V
EN
SYSTEM
CONTROLLER
SDA
Typical Operating Circuit
0.1µF
1µF
V_CC = +3.0V
TS ^VL
VCC
VL
V_CC
*
*
MAX14591
+3V
SYSTEM
IOVL1
VL
*
IOVCC1
SDA
VCC
*
GND
SLK
IOVL2
GND ^IOVCC2
SLK
GND
* PULLUPS ARE OPTIONAL FOR HIGH-SPEED, OPEN-DRAIN OPERATION.
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-6173; Rev 1; 12/14