The SN74CB3T3306 device is a high-speed TTL-compatible FET bus switch with low ON-state resistance (r_on), 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 V_CC. 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.

• 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 A 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

• Configuration
• 1:1 SPST
• Number of channels (#)
• 2
• Power supply voltage - single (V)
• 2.5, 3.3
• Protocols
• Analog, UART, I2C
• Ron (Typ) (Ohms)
• 5
• CON (Typ) (pF)
• 4
• ON-state leakage current (Max) (A)
• 20
• Bandwidth (MHz)
• 100
• Operating temperature range (C)
• -40 to 85
• Features
• Powered-off protection, Signal path translation
• Input/output continuous current (Max) (mA)
• 128
• Rating
• Catalog

SN74CB3T3306的完整型号有：74CB3T3306DCURG4、SN74CB3T3306DCTR、SN74CB3T3306DCUR，以下是这些产品的关键参数及官网采购报价：

74CB3T3306DCURG4，工作温度：-40 to 85，封装：VSSOP (DCU)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网74CB3T3306DCURG4的批量USD价格：.669（1000+）

SN74CB3T3306DCTR，工作温度：-40 to 85，封装：SM8 (DCT)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网SN74CB3T3306DCTR的批量USD价格：.418（1000+）

SN74CB3T3306DCUR，工作温度：-40 to 85，封装：VSSOP (DCU)-8，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网SN74CB3T3306DCUR的批量USD价格：.582（1000+）

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