74CB3Q3257DBQRE4

3.3-V, 2:1 (SPDT), 4-channel general-purpose FET bus switch

Manufacturer：

Luminary Micro/Texas Instruments

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Manufacturer NO：

74CB3Q3257DBQRE4

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Product SN：

10452-74CB3Q3257DBQRE4

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Package/Case：

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Manufacturer Lead Time：

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Datasheet:

74CB3Q3257DBQRE4 Datasheet PDF

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Detailed Descripition：

Powered-off protection, Supports input voltage beyond supply

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Product Application Field：None

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Datasheets PDF 74CB3Q3257DBQRE4 Datasheet PDF

Product Description

The SN74CB3Q3257 device is a high-bandwidth FET bus switch utilizing a charge pump to elevate the gate voltage of the pass transistor, providing a low and flat ON-state resistance (r_on).

High-Bandwidth Data Path
(up to 500 MHz)
5-V Tolerant I/Os With Device Powered Up or Powered Down
Low and Flat ON-State Resistance (r_on) Characteristics Over Operating Range
(r_on= 4 Ω Typical)
Rail-to-Rail Switching on Data I/O Ports
- 0- to 5-V Switching With 3.3-V V_CC
- 0- to 3.3-V Switching With 2.5-V V_CC
Bidirectional Data Flow With Near-Zero Propagation Delay
Low Input and Output Capacitance Minimizes Loading and Signal Distortion
(C_io(OFF)= 3.5 pF Typical)
Fast Switching Frequency (f_OE = 20 MHz Maximum)
Data and Control Inputs Provide Undershoot Clamp Diodes
Low Power Consumption
(I_CC= 0.7 mA Typical)
V_CC 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
I_off Supports Partial-Power-Down Mode Operation
Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
ESD Performance Tested Per JESD 22
- 2000-V Human Body Model
  (A114-B, Class II)
- 1000-V Charged-Device Model (C101)
Supports Both Digital and Analog Applications: USB Interface, Differential Signal Interface,
Bus Isolation, Low-Distortion Signal Gating ⁽¹⁾