74F258A

74F258A Quad 2-Input Multiplexer with 3-STATE Outputs April 1988 Revised September 2000 74F258A Quad 2-Input Multiplexer with 3-STATE Outputs General 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 common data select input. The four outputs present the selected data in the complement (inverted) form. The outputs may be switched to a high impedance state with a HIGH on the common 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 www.fairchildsemi.com 74F258A Unit Loading/Fan Out Pin Names Description S OE I0a–I0d I1a–I1d Za–Zd Common 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 (...