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74F257A Datasheet(PDF) 1 Page - Fairchild Semiconductor

Part No. 74F257A
Description  Quad 2-Input Multiplexer with 3-STATE Outputs
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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74F257A Datasheet(HTML) 1 Page - Fairchild Semiconductor

   
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© 2000 Fairchild Semiconductor Corporation
DS009507
www.fairchildsemi.com
April 1988
Revised September 2000
74F257A
Quad 2-Input Multiplexer with 3-STATE Outputs
General Description
The 74F257A 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 true (non-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 Non-inverting 3-STATE outputs
s Input clamp diodes limit high-speed termination effects
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
IEEE/IEC
Connection Diagram
Order Number
Package Number
Package Description
74F257ASC
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
74F257ASJ
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F257APC
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide


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