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PI5C3257Q
PI5C3257 Quad 2:1 Mux/DeMux BusSwitch Features: Description • Near-Zero propagation delay • 5Ω switches connect inputs to outputs • Direct bus connection when switches are ON • Ultra Low Quiescent Power (0.2µA typical) – Ideally suited for notebook applications • Pin compatible with 74 series 257 logic devices • Packaging (Pb-free & Green available): – 16-pin 150-mil wide plastic QSOP (Q) – 16-pin 300-mil wide plastic SOIC (S) – 16-pin 150-mil wide plastic SOIC (W) – 16-pin 173-mil wide plasticTSSOP (L) Pericom Semiconductor’s PI5C3257 is a Quad 2:1 multiplexer/ demultiplexer with three-state outputs that is pinout and function compatible with the PI74FCT257T, 74F257, and 74ALS/AS/LS257. Inputs can be connected to outputs with low On-Resistance (5Ω) with no additional ground bounce noise or propagation delay. Block Diagram Pin Configuration IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1 S 1 16 VCC IA0 2 15 E IA1 3 14 ID0 YA 4 13 ID1 IB0 5 12 YD IB1 6 11 IC0 YB 7 10 IC1 GND 8 9 YC E S YA YB YC YD Truth Table(1) Pin Description Pin Name IAn-IDn S E YA-YD GND VCC E S YA YB YC YD Function H X Hi-Z Hi-Z Hi-Z Hi-Z Disable L L IA0 IB0 IC0 ID0 S=0 L H IA1 IB1 IC1 ID1 S=1 Note: 1. H = High Voltage Level, L = Low Voltage Level 06-0240 1 Description Data Inputs Select Inputs Enable Data Outputs Ground Power PS7018G 11/04/06
TI
Texas Instruments Incorporated
U.S.A
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