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SN74CB3T3306
  • SN74CB3T3306
  • SN74CB3T3306
  • SN74CB3T3306

SN74CB3T3306

ACTIVE

3.3-V, 1:1 (SPST), 2-channel FET bus switch with level shifter

Texas Instruments SN74CB3T3306 Product Info

1 April 2026 1

Parameters

Protocols

Analog, I2C, UART

Configuration

1:1 SPST

Number of channels

2

Bandwidth (MHz)

100

Supply voltage (max) (V)

3.6

Ron (typ) (mΩ)

5000

Input/output voltage (min) (V)

0

Input/output voltage (max) (V)

5.5

Operating temperature range (°C)

-40 to 85

ESD CDM (kV)

1

Input/output continuous current (max) (mA)

128

COFF (typ) (pF)

4.5

CON (typ) (pF)

4

OFF-state leakage current (max) (µA)

10

Ron (max) (mΩ)

8000

VIH (min) (V)

1.7

VIL (max) (V)

0.8

Rating

Catalog

Package

SSOP (DCT)-8-11.8 mm² 2.95 x 4

Features

  • Output Voltage Translation Tracks VCC
  • Supports Mixed-Mode Signal Operation on All Data
    I/O Ports
    • 5-V Input Down to 3.3-V Output Level Shift
      With 3.3-V VCC
    • 5-V/3.3-V Input Down to 2.5-V Output Level Shift
      With 2.5-V VCC
  • 5-V Tolerant I/Os With Device Powered Up or
    Powered Down
  • Bidirectional Data Flow With Near-Zero
    Propagation Delay
  • Low ON-State Resistance (ron) Characteristics (ron =
    5 Ω Typical)
  • Low Input/Output Capacitance Minimizes Loading
    (Cio(OFF) = 4.5 pF Typical)
  • Data and Control Inputs Provide Undershoot
    Clamp Diodes
  • Low Power Consumption (ICC = 20 µA Maximum)
  • VCC Operating Range From 2.3 V to 3.6 V
  • Data I/Os Support 0- to 5-V Signaling Levels (0.8
    V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
  • Control Inputs Can Be Driven by TTL or 5-V/3.3-V
    CMOS Outputs
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per
    JESD 17
  • ESD Performance Tested Per JESD 22
    • 2000-V Human Body Model (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Supports Digital Applications:
    • Level Translation
    • USB Interface
    • Bus Isolation
  • Ideal for Low-Power Portable Equipment
  • Output Voltage Translation Tracks VCC
  • Supports Mixed-Mode Signal Operation on All Data
    I/O Ports
    • 5-V Input Down to 3.3-V Output Level Shift
      With 3.3-V VCC
    • 5-V/3.3-V Input Down to 2.5-V Output Level Shift
      With 2.5-V VCC
  • 5-V Tolerant I/Os With Device Powered Up or
    Powered Down
  • Bidirectional Data Flow With Near-Zero
    Propagation Delay
  • Low ON-State Resistance (ron) Characteristics (ron =
    5 Ω Typical)
  • Low Input/Output Capacitance Minimizes Loading
    (Cio(OFF) = 4.5 pF Typical)
  • Data and Control Inputs Provide Undershoot
    Clamp Diodes
  • Low Power Consumption (ICC = 20 µA Maximum)
  • VCC Operating Range From 2.3 V to 3.6 V
  • Data I/Os Support 0- to 5-V Signaling Levels (0.8
    V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
  • Control Inputs Can Be Driven by TTL or 5-V/3.3-V
    CMOS Outputs
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per
    JESD 17
  • ESD Performance Tested Per JESD 22
    • 2000-V Human Body Model (A114-B, Class II)
    • 1000-V Charged-Device Model (C101)
  • Supports Digital Applications:
    • Level Translation
    • USB Interface
    • Bus Isolation
  • Ideal for Low-Power Portable Equipment

Description

The SN74CB3T3306 device is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC. The SN74CB3T3306 device supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels.

The SN74CB3T3306 device is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC. The SN74CB3T3306 device supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels.

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