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PCA9306DCTT ,Dual Bi-Directional I2C-Bus and SMBus Voltage Level-TranslatorBlock Diagram..... 84 Revision History........ 28.3 Feature Description...... 85 Pin Configuration ..
PCA9306DCUR ,DUAL BIDIRECTIONAL I2C BUS AND SMBus VOLTAGE-LEVEL TRANSLATORFeatures 2 Applications21• 2-Bit Bidirectional Translator for SDA and SCL • I C, SMBus, PMBus, MDIO ..
PCA9306DCURG4 ,2-Bit Bidirectional I2C Bus and SMBus Voltage-Level Shifter 8-VSSOP -40 to 85Maximum Ratingsover operating ambient temperature range (unless otherwise noted)MIN MAX UNITV DC re ..
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PEF82912FV1.3 . ,Q-SMINTI (2B1Q Second Gen. Modular IS...Data Sheet, DS 1, March 2001®Q-SMINT I2B1Q Second Gen. Modular ISDN NT (Intelligent)PEF 82912/82913 ..
PEF82912HV1.3 ,Q-SMINTI (2B1Q Second Gen. Modular IS...Data Sheet, DS 1, March 2001®Q-SMINT I2B1Q Second Gen. Modular ISDN NT (Intelligent)PEF 82912/82913 ..
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PCA9306DCTR-PCA9306DCTT-PCA9306DCUR-PCA9306DCURG4-PCA9306DCUT-PCA9306DQER
Dual Bidirectional I2C Bus and SMBus Voltage Level Translator
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PCA9306SCPS113L –OCTOBER 2004–REVISED APRIL 2016
PCA9306 Dual BidirectionalI2C Bus and SMBus Voltage-Level Translator Features 2-Bit Bidirectional Translator for SDA and SCL
Linesin Mixed-ModeI2C ApplicationsI2C and SMBus Compatible Less Than 1.5-ns Maximum Propagation Delayto
Accommodate Standard-Mode and Fast-ModeI2C
Devices and Multiple Masters Allows Voltage-Level Translation Between 1.2-V VREF1 and 1.8-V, 2.5-V, 3.3-V, 5-V VREF2 1.8-V VREF1 and 2.5-V, 3.3-V,or 5-V VREF2 2.5-V VREF1 and 3.3-Vor 5-V VREF2 3.3-V VREF1 and 5-V VREF2 Provides Bidirectional Voltage Translation With No
Direction Pin Low 3.5-Ω ON-State Resistance Between Input
and Output Ports Provides Less Signal Distortion Open-DrainI2C I/O Ports (SCL1, SDA1, SCL2,
and SDA2) 5-V TolerantI2C I/O Portsto Support Mixed-Mode
Signal Operation High-Impedance SCL1, SDA1, SCL2, and SDA2
Pins for EN= Low Lockup-Free Operationfor Isolation When= Low Flow-Through Pinout for Easeof Printed-Circuit-
Board Trace Routing Latch-Up Performance Exceeds 100 mA Per
JESD 78, ClassII ESD Protection Exceeds JESD22 2000-V Human-Body Model (A114-A) 1000-V Charged-Device Model (C101)
ApplicationsI2C, SMBus, PMBus, MDIO, UART, Low-Speed
SDIO, GPIO, and Other Two-Signal Interfaces Servers Routers (Telecom Switching Equipment) Personal Computers Industrial Automation
DescriptionThe PCA9306 deviceisa dual bidirectionalI2C and
SMBus voltage-level translator with an enable (EN)
input, andis operational from 1.2-Vto 3.3-V VREF1
and 1.8-Vto 5.5-V VREF2.
The PCA9306 device allows bidirectional voltage
translations between 1.2V and5V, without the usea direction pin. The low ON-state resistance (RON) the switch allows connectionsto be made with
minimal propagation delay. When ENis high, the
translator switchis ON, and the SCL1 and SDA1 I/O
are connected to the SCL2 and SDA2 I/O,
respectively, allowing bidirectional data flow between
ports. When ENis low, the translator switchis off,
anda high-impedance state exists between ports. additionto voltage translation, the PCA9306 device
canbe usedto isolatea 400-kHz bus froma 100-kHz
busby controlling the EN pin, and disconnecting the
slower bus during fast-mode communication.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe datasheet.
Simplified Application Diagram
