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FST3126M 데이터시트(PDF) 1 Page - Fairchild Semiconductor |
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FST3126M 데이터시트(HTML) 1 Page - Fairchild Semiconductor |
1 / 6 page © 1999 Fairchild Semiconductor Corporation DS500044 www.fairchildsemi.com August 1997 Revised December 1999 FST3126 Quad Bus Switch General Description The Fairchild Switch FST3126 provides four high-speed CMOS TTL-compatible bus switches. The low on resis- tance of the switch allows inputs to be connected to out- puts without adding propagation delay or generating additional ground bounce noise. The device is organized as four 1-bit switches with sepa- rate OE inputs. When OE is HIGH, the switch is ON and Port A is connected to Port B. When OE is LOW, the switch is OPEN and a high-impedance state exists between the two ports. Features s 4 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 Diagrams Pin Assignment for SOIC and TSSOP Pin Assignment for QSOP Truth Table Order Number Package Number Package Description FST3126M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow FST3126QSC MQA16 16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide FST3126MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Pin Name Description OE1, OE2, OE3, OE4 Bus Switch Enables 1A, 2A, 3A, 4A Bus A 1B, 2B, 3B, 4B Bus B NC Not Connected Inputs Inputs/Outputs OE A,B LZ HA = B |
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