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FST3257 Datasheet

Part Number FST3257
Manufacturers Fairchild Semiconductor
Logo Fairchild Semiconductor
Description Quad 2:1 Multiplexer / Demultiplexer Bus Switch
Datasheet FST3257 DatasheetFST3257 Datasheet (PDF)

FST3257 — Quad 2:1 Multiplexer / Demultiplexer Bus Switch May 2009 FST3257 Quad 2:1 Multiplexer / Demultiplexer Bus Switch Features ƒ 4Ω Switch Connection Between Two Ports ƒ Minimal Propagation Delay Through the Switch ƒ Low ICC ƒ Zero Bounce in Flow-Through Node ƒ Control Inputs Compatible with TTL Level Description The Fairchild Switch FST3257 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 connec.

  FST3257   FST3257






Part Number FST3253
Manufacturers Fairchild Semiconductor
Logo Fairchild Semiconductor
Description Dual 4:1 Multiplexer/Demultiplexer Bus Switch
Datasheet FST3257 DatasheetFST3253 Datasheet (PDF)

FST3253 Dual 4:1 Multiplexer/Demultiplexer Bus Switch September 1997 Revised December 1999 FST3253 Dual 4:1 Multiplexer/Demultiplexer Bus Switch General Description The Fairchild Switch FST3253 is a dual 4:1 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, S0 and S1 connect the A Port to the selected B Po.

  FST3257   FST3257







Quad 2:1 Multiplexer / Demultiplexer Bus Switch

FST3257 — Quad 2:1 Multiplexer / Demultiplexer Bus Switch May 2009 FST3257 Quad 2:1 Multiplexer / Demultiplexer Bus Switch Features ƒ 4Ω Switch Connection Between Two Ports ƒ Minimal Propagation Delay Through the Switch ƒ Low ICC ƒ Zero Bounce in Flow-Through Node ƒ Control Inputs Compatible with TTL Level Description The Fairchild Switch FST3257 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. When /OE is HIGH, the switch is OPEN and a high-impedance state exists between the two ports. Ordering Information Operating Part Number Temperature Range FST3257M -40 to 85°C FST3257MX -40 to 85°C FST3257QSC -40 to 85°C FST3257QSCX -40 to 85°C FST3257MTC -40 to 85°C FST3257MTCX -40 to 85°C Eco Status Package RoHS Green RoHS 16-Lead Small Outline Integrated Circuit (SOIC) JEDEC MS-012,0.150 Narrow 16-Lead Quarter Size Outline Package (QSOP) JEDEC MO-137 0.150 Inch Wide 16-Lead Thin Shrink Small Outline Package (TSSOP) JEDEC MO-153, 4mm Wide Packing Method Tubes Tape and Reel Tubes Tape and Reel Tubes Tape and Reel For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. © 1997 Fairchild Semiconductor Corporation FST3257 • Rev. 1.0.3 www.fairchi.


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