PCA9306

Part: PCA9306 — Texas Instruments

Type: Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator

Description: A dual bidirectional I2C and SMBus voltage-level translator with an enable input, operational from 1.2-V to 3.3-V VREF1 and 1.8-V to 5.5-V VREF2, allowing voltage translation between 1.2 V and 5 V without a direction pin.

Operating Conditions:

• Supply voltage VREF1: 1.2–3.3 V
• Supply voltage VREF2: 1.8–5.5 V
• Operating free-air temperature (TA): -40 to +85 °C

Absolute Maximum Ratings:

• Max supply voltage VREF1: 4 V
• Max supply voltage VREF2: 6.5 V
• Max junction/storage temperature (Tstg): -65 to +150 °C

Key Specs:

• ON-state resistance (RON): 3.5 Ω (VREF1 = 1.2 V, VREF2 = 1.8 V to 5.5 V, TA = 25 °C)
• Propagation delay (tPLH, tPHL): < 1.5 ns (VREF1 = 1.2 V, VREF2 = 1.8 V, CL = 50 pF)
• Quiescent supply current (ICC): 1 μA (VREF1 = 3.3 V, VREF2 = 5.5 V, EN = 0 V, TA = 25 °C)
• Input capacitance (CI): 3 pF (VREF1 = 3.3 V, VREF2 = 5.5 V, TA = 25 °C)
• Output leakage current (IOZL): 0.1 μA (VREF1 = 3.3 V, VREF2 = 5.5 V, EN = 0 V, TA = 25 °C)
• ESD Protection HBM: 2000 V
• ESD Protection CDM: 1000 V

Features:

• 2-Bit Bidirectional Translator for SDA and SCL Lines
• I2C and SMBus Compatible
• Less Than 1.5-ns Maximum Propagation Delay
• Allows Voltage-Level Translation Between 1.2-V VREF1 and 1.8-V, 2.5-V, 3.3-V, or 5-V VREF2
• Provides Bidirectional Voltage Translation With No Direction Pin
• Low 3.5Ω ON-State Resistance
• Open-Drain I2C I/O Ports
• 5-V Tolerant I2C I/O Ports
• High-Impedance SCL1, SDA1, SCL2, and SDA2 Pins for EN = Low
• Lockup-Free Operation for Isolation When EN = Low
• Flow-Through Pinout

Applications:

• I2C, SMBus, PMBus, MDIO, UART, Low-Speed SDIO, GPIO, and Other Two-Signal Interfaces
• Servers
• Routers (Telecom Switching Equipment)
• Personal Computers
• Industrial Automation

Package:

• SSOP (8)
• VSSOP (8)
• X2SON (8)
• DSBGA (8)

• 1 · 2-Bit Bidirectional Translator for SDA and SCL Lines in Mixed-Mode I 2 C Applications
• I 2 C and SMBus Compatible
• Less Than 1.5-ns Maximum Propagation Delay to Accommodate Standard-Mode and Fast-Mode I 2 C Devices and Multiple Masters
• Allows Voltage-Level Translation Between
• -1.2-V VREF1 and 1.8-V, 2.5-V, 3.3-V, or 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-V or 5-V VREF2
• -3.3-V VREF1 and 5-V VREF2
• Provides Bidirectional Voltage Translation With No Direction Pin
• Low 3.5Ω ON-State Resistance Between Input and Output Ports Provides Less Signal Distortion
• Open-Drain I 2 C I/O Ports (SCL1, SDA1, SCL2, and SDA2)
• 5-V Tolerant I 2 C I/O Ports to Support Mixed-Mode Signal Operation
• High-Impedance SCL1, SDA1, SCL2, and SDA2 Pins for EN = Low
• Lockup-Free Operation for Isolation When EN = Low
• Flow-Through Pinout for Ease of Printed-CircuitBoard Trace Routing
• Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
• ESD Protection Exceeds JESD 22
• -2000-V Human-Body Model (A114-A)
• -1000-V Charged-Device Model (C101)

• I 2 C, SMBus, PMBus, MDIO, UART, Low-Speed SDIO, GPIO, and Other Two-Signal Interfaces
• Servers
• Routers (Telecom Switching Equipment)
• Personal Computers
• Industrial Automation

over recommended operating ambient temperature range (unless otherwise noted)

over operating ambient temperature range (unless otherwise noted)