DSA00870069.pdf
by Texas Instruments
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SN74ALS638A, SN74ALS639A, SN74AS638A, SN74AS639 OCTAL BUS TRANSCEIVERS
SDAS123A DECEMBER... 1983 REVISED JANUARY 1995
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Bidirectional Bus Transceivers in High-Density 20-Pin Packages Cho more
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Original
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Unknown
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Unknown
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Unknown