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74AC257FAIRCHILDN/a14avaiQuad 2-Input Multiplexer with 3-STATE Outputs


74AC257 ,Quad 2-Input Multiplexer with 3-STATE OutputsFunctional Description Truth TableThe AC/ACT257 is quad 2-input multiplexer with 3-STATEOutput Sele ..
74AC257B ,QUAD 2 CHANNEL MULTIPLEXER (3-STATE)Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional o ..
74AC257MTR ,QUAD 2 CHANNEL MULTIPLEXER (3-STATE)ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value UnitV Supply Voltage-0.5 to +7 VCCV DC Input V ..
74AC257PC ,Quad 2-Input Multiplexer with 3-STATE OutputsFunctional Description Truth TableThe AC/ACT257 is quad 2-input multiplexer with 3-STATEOutput Sele ..
74AC257SCX ,Quad 2-Input Multiplexer with 3-STATE OutputsFeaturesThe AC/ACT257 is a quad 2-input multiplexer with 3-

74AC257
Quad 2-Input Multiplexer with 3-STATE Outputs
74AC257 • 74ACT257 Quad 2-Input Multiplexer with 3-STATE Outputs November 1988 Revised November 1999 74AC257  74ACT257 Quad 2-Input Multiplexer with 3-STATE Outputs General Description Features The AC/ACT257 is a quad 2-input multiplexer with 3-I and I reduced by 50% CC OZ STATE outputs. Four bits of data from two sources can be Multiplexer expansion by tying outputs together selected using a Common Data Select input. The four out- Noninverting 3-STATE outputs puts present the selected data in true (noninverted) form. Outputs source/sink 24 mA The outputs may be switched to a high impedance state by placing a logic HIGH on the common Output Enable (OE)ACT257 has TTL-compatible inputs input, allowing the outputs to interface directly with bus-ori- ented systems. Ordering Code: Order Number Package Number Package Description 74AC257SC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body 74AC257SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74AC257MTC MTC16 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74AC257PC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide 74ACT257SC M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow Body 74ACT257SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74ACT257MTC MTC16 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74ACT257PC N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Logic Symbols Connection Diagram IEEE/IEC Pin Descriptions Pin Names Description S Common Data Select Input OE 3-STATE Output Enable Input I –I Data Inputs from Source 0 0a 0d I –I Data Inputs from Source 1 1a 1d Z –Z 3-STATE Multiplexer Outputs a d FACT is a trademark of . © 1999 DS009949
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