FST3253QSC

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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. ■ 4Ω switch connection between two ports. When OE is LOW, S0 and S1 connect 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. ■ Control inputs compatible with TTL level. ■ Minimal propagation delay through the switch. ■ Low lCC. ■ Zero bounce in flow-through mode. Ordering Code: Order Number Package Number FST3253M M16A Package Description 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow FST3253QSC MQA16 16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide FST3253MTC MTC16 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Logic Diagram Connection Diagram Truth Table Pin Descriptions S1 S0 OE1 OE2 Function X X H X Disconnect 1A Disconnect 2A Pin Name Description X X X H OE1, OE2 Bus Switch Enables L L L L A = B1 S0 , S1 Select Inputs L H L L A = B2 A Bus A H L L L A = B3 B1 , B2 , B3 , B4 Bus B H H L L A = B4 © 1999 Fairchild Semiconductor Corporation DS500058 www.fairchildsemi.com FST3253 Dual 4:1 Multiplexer/Demultiplexer Bus Switch September 1997 FST3253 Absolute Maximum Ratings(Note 1) Supply Voltage (VCC ) Recommended Operating Conditions (Note 3) −0.5V to +7.0V DC Switch Voltage (VS) −0.5V to +7.0V Power Supply Operating (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