FST6800WMX

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The low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. The device precharges the B Port to a selectable bias voltage (BiasV) to minimize live insertion noise. ■ 4Ω switch connection between two ports. ■ Minimal propagation delay through the switch. ■ Low lCC. ■ Zero bounce in flow-through mode. ■ Output precharge to minimize live insertion noise. ■ Control inputs compatible with TTL level. 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-kΩ resistor. Ordering Code: Order Number Package Number Package Description FST6800WM M24B 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide FST6800QSC MQA24 24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide FST6800MTC MTC24 24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Diagram Connection Diagram Pin Descriptions Truth Table Pin Name Description OE Bus Switch Enable A Bus A B Bus B © 2000 Fairchild Semiconductor Corporation DS500022 OE B0–B9 Function L A0–A9 Connect H BiasV Precharge www.fairchildsemi.com FST6800 10-Bit Bus Switch with Precharged Outputs June 1997 FST6800 Absolute Maximum Ratings(Note 1) Recommended Operating Conditions (Note 3) Supply Voltage (VCC ) −0.5V to +7.0V DC Switch Voltage (VS) −0.5V to +7.0V Power Supply Operating (VCC) 4.0V to 5.5V Bias V Voltage Range −0.5V to +6.0V Precharge Supply (BiasV) 1.5V to VCC DC Input Voltage (VIN) (Note 2) −0.5V to +7.0V Input Voltage (VIN) 0V to 5.5V 0V to 5.5V DC Input Diode Current (lIK) VIN