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PI5C3257L Datasheet(PDF) 1 Page - Pericom Semiconductor Corporation |
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PI5C3257L Datasheet(HTML) 1 Page - Pericom Semiconductor Corporation |
1 / 6 page 1 PS7018G 11/04/06 Description Pericom Semiconductor’s PI5C3257 is a Quad 2:1 multiplexer/ demultiplexer with three-state outputs that is pinout and function compatiblewiththePI74FCT257T,74F257,and74ALS/AS/LS257. Inputs can be connected to outputs with low On-Resistance (5Ω) with no additional ground bounce noise or propagation delay. Block Diagram PI5C3257 Quad 2:1 Mux/DeMux BusSwitch Features: • 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) Pin Configuration Truth Table(1) 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 E IA0 IA1 IB0 IB1 IC0 IC1 ID0 ID1 S YA YB YC YD VCC S 1 E IA0 2 ID0 IA1 3 ID1 YA 4 YD IB0 5 16 IC0 IB1 6 15 IC1 YB 7 14 YC 8 13 12 GND 11 10 9 Pin Description Pin Name Description IAn-IDn Data Inputs S Select Inputs E Enable YA-YD Data Outputs GND Ground VCC Power 06-0240 |
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