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FSTU6800 数据表(PDF) 1 Page - Fairchild Semiconductor |
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FSTU6800 数据表(HTML) 1 Page - Fairchild Semiconductor |
1 / 5 page © 2000 Fairchild Semiconductor Corporation DS500194 www.fairchildsemi.com December 1998 Revised October 2006 FSTU6800 10-Bit Bus Switch with Precharged Outputs and −2V Undershoot Protection General Description The Fairchild Switch FSTU6800 provides 10-bits of high- speed CMOS TTL-compatible bus switching. The low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. Both the A Ports and the B Ports have “undershoot hardened” circuit protection to sup- port an extended input range to 2.0V below ground. Fair- child’s integrated Undershoot Hardened Circuit (UHC®) senses undershoot at the I/Os, and responds by preventing voltage differentials from developing and turning on the switch. The device also precharges the B Port to a select- able bias voltage (BiasV) to minimize live insertion noise. The device is organized as a 10-bit switch with a bus enable (OE) signal. 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 the B Port is precharged to BiasV through an equivalent 10-k Ω resistor. Features s 4 Ω switch connection between two ports. s Undershoot Hardened to -2.0V. s Soft enable turn-on to minimize bus-to-bus charge sharing during enable. s Low lCC. s Zero bounce in flow-through mode. s Output precharge to minimize live insertion noise. s Control inputs compatible with TTL level. s See Applications Note AN-5008 for details. 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 UHC® is a registered trademark of Fairchild Semiconductor Corporation. Order Number Package Number Package Description FSTU6800WM M24B 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide FSTU6800QSC MQA24 24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide FSTU6800MTC MTC24 24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Pin Name Description OE Bus Switch Enable ABus A BBus B BiasV Bus B Voltage Bias OE B0–B9 Function LA0–A9 Connect HBiasV Precharge |
类似零件编号 - FSTU6800 |
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类似说明 - FSTU6800 |
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