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FSTU3253MX, FSTU3257, FSTU3257MTC

Table of contents:
Info of FSTU3253MX
Info of FSTU3257
Info of FSTU3257MTC

FSTU3253MX, FSTU3257, FSTU3257MTC Selling Leads, Datasheet

MFG:Fairchild Package Cooled:N/A D/C:09+

FSTU3253MX, FSTU3257, FSTU3257MTC Picture

FSTU3253MX, FSTU3257, FSTU3257MTC Datasheet download

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Part Number: FSTU3253MX

MFG: Fairchild

Package Cooled: N/A

D/C: 09+

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FSTU3257 General 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 are "undershoot hardened" with UHC^TM 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 switch is OPEN and a high-impedance state exists
between the two ports

FSTU3257 Maximum Ratings

Supply Voltage (V_CC) ................−0.5V to +7.0V
DC Switch Voltage (V_S) (Note 2) ..........−2.0V to +7.0V
DC Input Control Pin Voltage (V_IN)(Note 3).....−0.5V to +7.0V
DC Input Diode Current (lIK) V_IN<0V ............−50mA
DC Output (I_OUT) ......................128mA
DC V_CC/GND Current (I_CC/I_GND) ............+/− 100mA
Storage Temperature Range (T_STG)........−65to +150

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 l_CC.
` Zero bounce in flow-through mode.
` Control inputs compatible with TTL level.
` See Applications Note AN-5008 for details

FSTU3257 Connection Diagram

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