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TI PCA9306DCUR

Manufacturer
TI
MPN
PCA9306DCUR
LCSC Part #
C33196
Packaging
VSSOP-8
Customer #
Key Attributes
Dual Bidirectional I²C Bus and SMBus Voltage-Level Translator
DatasheetTI PCA9306DCUR
RoHS Compliance2 documents available
Alternative Parts5
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Logic/Translators, Level Shifters
ManufacturerTI
PackagingVSSOP-8
output typeOpen-drain;Push-Pull
InterfaceI2C;SMBus
Output Signal-
Input Signal-
Operating Temperature-40℃~+85℃
Data Rate-
Number of Elements1
Channel TypeBidirectional
FeaturesAutomatic direction detection;Output enable high-impedance
Voltage - Supply1.2V~3.3V;1.8V~5.5V
Number of Circuits2
Current - Output High(IOH)-
Current - Output Low(IOL)-
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Introduction

AI Translation

The PCA9306 is a dual bidirectional I2C and SMBus voltage-level translator with enable (EN) input, operating over a VREF1 range of 1.2V to 3.3V and a VREF2 range of 1.8V to 5.5V. The PCA9306 enables bidirectional voltage translation between 1.2V and 5V without requiring a direction pin. The switch features low on-state resistance (RON), establishing connections with minimal propagation delay. When EN is high, the translator switch opens, connecting SCL1 and SDA1 I/Os to SCL2 and SDA2 I/Os respectively, enabling bidirectional data flow between ports. When EN is low, the translator switch closes, presenting a high-impedance state between ports. In addition to voltage translation, the PCA9306 can be used to isolate a 400kHz bus from a 100kHz bus by controlling the EN pin during fast-mode communication to disconnect the slower bus.

Features

AI Translation
  • 2-bit bidirectional voltage-level translator for SDA and SCL lines in mixed-mode I2C applications
  • Compatible with I2C and SMBus
  • Maximum propagation delay less than 1.5ns, supporting standard-mode and fast-mode I2C devices and multiple controllers
  • Voltage-level translation between: 1.2V VREF1 and 1.8V, 2.5V, 3.3V, or 5V VREF2; 1.8V VREF1 and 2.5V, 3.3V, or 5V VREF2; 2.5V VREF1 and 3.3V or 5V VREF2; 3.3V VREF1 and 5V VREF2
  • Bidirectional voltage translation without direction pin
  • Low 3.5Ω on-resistance between input and output ports for minimal signal distortion
  • Open-drain I2C I/O ports (SCL1, SDA1, SCL2, and SDA2)
  • 5V-tolerant I2C and I/O ports for mixed-mode signal operation
  • SCL1, SDA1, SCL2, and SDA2 pins in high-impedance state when EN is low
  • Latch-free operation provides isolation when EN is low
  • Straight-through pin arrangement for simplified PCB routing
  • Latch-up performance exceeds 100mA per JESD 78 Class II
  • ESD protection exceeds JESD 22 specifications
  • 2000V Human Body Model (A114-A)
  • 1000V Charged Device Model (C101)

Applications

AI Translation
  • I2C, SMBus, PMBus, MDIO, UART, low-speed SDIO, GPIO, and other dual-signal interfaces
  • Servers
  • Routers (telecom switching equipment)
  • Personal computers
  • Industrial automation