Datenblatt-Suchmaschine für elektronische Bauteile |
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FST32245MTC Datenblatt(PDF) 1 Page - Fairchild Semiconductor |
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FST32245MTC Datenblatt(HTML) 1 Page - Fairchild Semiconductor |
1 / 5 page Preliminary © 2001 Fairchild Semiconductor Corporation DS500473 www.fairchildsemi.com June 2001 Revised June 2001 FST32245 Octal Bus Switch with 25 Ω Series Resistor in Outputs (Preliminary) General Description The Fairchild Switch FST32245 provides 8-bits of high- speed CMOS TTL-compatible bus switching in a standard ’245 pin-out. The low On Resistance of the switch allows inputs to be connected to outputs without adding propaga- tion delay or generating additional ground bounce noise. The device is organized as an 8-bit switch. When OE is LOW, the switch is ON and Port A is connected to Port B. When OE is HIGH, the switch is OPEN and a high-imped- ance state exists between the two ports. The FST32245 has an equivalent 25 Ω series resistors to reduce signal-reflection noise, eliminating the need for external terminating resistors. Features s 25 Ω 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 Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Diagram Pin Descriptions Connection Diagram Truth Table Order Number Package Number Package Description FST32245WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide FST32245QSC MQA20 20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide FST32245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Pin Name Description OE Bus Switch Enable ABus A BBus B NC No Connect Input OE Function L Connect H Disconnect |
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