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Fairchild Semiconductor
74F258A
74F258A is Quad 2-Input Multiplexer manufactured by Fairchild Semiconductor.
Description The 74F258A is a quad 2-input multiplexer with 3-STATE outputs. Four bits of data from two sources can be selected using a mon data select input. The four outputs present the selected data in the plement (inverted) form. The outputs may be switched to a high impedance state with a HIGH on the mon Output Enable (OE) input, allowing the outputs to interface directly with bus-oriented systems. Features s Multiplexer expansion by tying outputs together s Inverting 3-STATE outputs Ordering Code: Order Number Package Number Package Description 74F258ASC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 74F258ASJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74F258APC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbols Connection Diagram IEEE/IEC © 2000 Fairchild Semiconductor Corporation DS009508 .fairchildsemi. Unit Loading/Fan Out Pin Names Description S OE I0a- I0d I1a- I1d Za- Zd mon Data Select Input 3-STATE Output Enable Input (Active LOW) Data Inputs from Source 0 Data Inputs from Source 1 3-STATE Inverting Data Outputs U.L. HIGH/LOW 1.0/1.0 1.0/1.0 1.0/1.0 1.0/1.0 150/40 (33.3) Input IIH/IIL Output IOH/IOL 20 µA/- 0.6 m A 20 µA/- 0.6 m A 20 µA/- 0.6 m A 20 µA/- 0.6 m A - 3 m A/24 m A (20 m A) Truth Table Output Select Enable...