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FSTU3257

Features: ` Undershoot hardened to −2V (A and B Ports)` Soft enable turn-on to minimize bus to bus charge sharing during enable` 4 switch connection between two ports.` Minimal propagation delay through the switch.` Low lCC.` Zero bounce in flow-through mode.` Control inputs compatible with ...

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SeekIC No. : 004344883 Detail

FSTU3257: Features: ` Undershoot hardened to −2V (A and B Ports)` Soft enable turn-on to minimize bus to bus charge sharing during enable` 4 switch connection between two ports.` Minimal propagation del...

FSTU3257 Data Sheet

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Part Number:
FSTU3257
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Undershoot hardened to −2V (A and B Ports)
` Soft enable turn-on to minimize bus to bus charge sharing during enable
` 4 switch connection between two ports.
` Minimal propagation delay through the switch.
` Low lCC.
` Zero bounce in flow-through mode.
` Control inputs compatible with TTL level.
` See Applications Note AN-5008 for details


Pinout

Connection Diagram


Specifications

Supply Voltage (VCC) ................−0.5V to +7.0V
DC Switch Voltage (VS) (Note 2)  ..........−2.0V to +7.0V
DC Input Control Pin Voltage (VIN)(Note 3).....−0.5V to +7.0V
DC Input Diode Current (lIK) VIN<0V  ............−50mA
DC Output (IOUT) ......................128mA
DC VCC/GND Current (ICC/IGND) ............+/− 100mA
Storage Temperature Range (TSTG)........−65to +150


Description

The Fairchild Switch FSTU3257 is a quad 2:1 high-speed CMOS TTL-compatible multiplexer/demultiplexer bus switch. The low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise.

When OE is LOW ,  the  select pin connects the A Port to the selected B Port output. The  A  and  B  Ports of FSTU3257 are "undershoot hardened" with UHCTM protection to support an extended range of 2.0V below ground. Fairchild's integrated Undershoot Hardened Circuit UHC senses undershoot at the I/O and responds by preventing voltage differentials from developing and turning on the switch. When OE is HIGH, the FSTU3257 is OPEN and a high-impedance state exists
between the two ports




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