Hot-selling and scarce SN74CB3Q3306APWR 2.5V/3.3V Low-Voltage High-Bandwidth Bus Switch 8-TSSOP spot stock

Product Descriptions

The  SN74CB3Q3306A  device  is  a  high-bandwidthFET  bus  switch  using  a  charge  pump  to  elevatethe  gate  voltage  of  the  pass  transistor,  providinga  low  and  flat  ON-state  resistance  (ron).  The  low and   flat   ON-state   resistance   allows   for   minimalpropagation delay and supports  rail-to-rail switchingon  the  data  input/output  (I/O)  ports .  The  devicealso features  low  data  I/O  capacitance to  minimizecapacitive   loading   and   signal   distortion   on   thedata   bus .   Specifically  designed  to  support   highbandwidth applications, the SN74CB3Q3306A deviceprovides  an  optimized  interface  option  appropriate for broadband communications, networking, and dataintensive computing systems .

The  SN74CB3Q3306A  device  is  organized  as  two1-bit switches with separate output-enable (1 OE , 2OE) inputs . It can be used as two 1-bit bus switchesor  as  one  2-bit  bus  switch .  When  OE  is  low,  theassociated  1-bit bus switch is ON and the A port isconnected to the  B  port, allowing  bidirectional dataflow between ports . When OE is high, the associated1-bit bus switch is OFF, and a high-impedance stateexists between the A and B ports 

The  SN74CB3Q3306A  device  is  fully  specified  forpartial-power-down  applications  using  _I off .  The  _I offcircuitry prevents damaging current backflow throughthe device when it is powered down . The device hasisolation during power off .

To  confirm  the  high-impedance  state  during  powerup or power down, OE must be tied to _V CC  througha pullup resistor; the minimum value of the resistoris determined by the current-sinking capability of thedrive​r.

Product Features

•    High-Bandwidth Data Path (up to 500MHz)

•   5V Tolerant I/Os With Device Powered Up or Powered Down

•    Low and Flat ON-State Resistance (ron) Characteristics Over Operating Range (ron = 4Ω Typ)

•    Rail-to-Rail Switching on Data I/O Ports

–   0 to 5V Switching With 3.3V V CC

–   0 to 3 .3V Switching With 2.5V V CC

•    Bidirectional Data Flow With Near-Zero Propagation Delay

•    Low Input and Output Capacitance Minimizes Loading and Signal Distortion (C io(OFF) = 3.5pF Typ)

•    Fast Switching Frequency (fOE = 20MHz Max)

•    Data and Control Inputs Provide Undershoot Clamp Diodes

•    Low Power Consumption (ICC = 0.25mA Typ)

•   V CC Operating Range From 2.3V to 3.6V

•    Data I/Os Support 0 to 5V Signaling Levels (0 .8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V)

•    Control Inputs Can Be Driven by TTL or 5V/3 .3V CMOS Outputs

•    I off Supports Partial-Power-Down Mode Operation

•    Latch-Up Performance Exceeds 100mA Per JESD 78, Class II

•    ESD Performance Tested Per JESD 22

–   2000V Human-Body Model (A114-B, Class II)

–   1000V Charged-Device Model (C101)

•   Supports Both Digital and Analog Applications:

USB Interface, Differential Signal Interface, Bus Isolation, Low-Distortion Signal Gating

Product Specifications

Product Photos

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