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FSTU3125 - 4-Bit Bus Switch with −2V Undershoot Protection

General Description

The Fairchild Switch FSTU3125 provides four high-speed CMOS TTL-compatible bus switches.

The low On Resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise.

Key Features

  • s Undershoot hardened to.
  • 2V (A and B Ports) s 4Ω switch connection between two ports s Minimal propagation delay through the switch s Low lCC s Zero bounce in flow-through mode s Control inputs compatible with TTL level s See.

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Other Datasheets by Fairchild (now onsemi)

Part Number Description
FSTU32160 16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch
FSTU32160A 16-Bit to 32-Bit Multiplexer/Demultiplexer Bus Switch
FSTU3253 Dual 4:1 Multiplexer/Demultiplexer Bus Switch
FSTU3257 Quad 2:1 Multiplexer/Demultiplexer Bus Switch with -2V Undershoot Protection
FSTU32X384 20-Bit Low Power Bus Switch with -2V Undershoot Protection
FSTU3384 10-Bit Bus Switch with -2V Undershoot Hardened Circuit (UHC) Protection
FSTU16211 24-Bit Bus Switch with .2V Undershoot Protection (Preliminary)
FSTU162211 24-Bit Bus Switch with .2V Undershoot Protection and 25 Series Resistors in Outputs (Preliminary)
FSTU16245 16-Bit Bus Switch with −2V Undershoot Protection
FSTU162450 Configurable 4-Bit to 20-Bit Bus Switch with .2V Undershoot Protection and 25 Series Resistors in Outputs (Preliminary)

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
FSTU3125 4-Bit Bus Switch with −2V Undershoot Protection June 2001 Revised August 2001 FSTU3125 4-Bit Bus Switch with −2V Undershoot Protection General Description The Fairchild Switch FSTU3125 provides four high-speed CMOS TTL-compatible bus switches. The low On Resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. The A and B Ports are protected against undershoot to support an extended range to 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 the switch on. The device is organized as four 1-bit switches with separate OE inputs.