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MC74ACT257 |
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| Part Number | MC74ACT257 |
| Manufacturer | Motorola |
| Description | The MC74AC257/74ACT257 is a quad 2-input multiplexer with 3-state outputs. It selects four bits of data from two sources under control of a Common Data Select input. When the Select input is LOW, the ... |
| Features |
S
2 I0a
3 I1a
4 Za
5 I0b
6 I1b
7 Zb
8 GND
TRUTH TABLE
Output Enable OE H L L L L
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance
LOGIC SYMBOL
Select Input S X H H L L Data Inputs I0 X X X L H I1 X L H X X Outputs Z Z L H L H S Za Zb Zc Zd OE I0a I1a I0b I1b I0c I1c I0d I1d
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FACT DATA 5-1
MC74AC257 MC74ACT257
FUNCTIONAL DESCRIPTION
The MC74AC257/74ACT257 is a quad 2-input multiplexer with 3-state outputs. It selects four bits of data from two sources under control of a Common Data Select input. When the Select i... |
| Document |
 MC74ACT257 Data Sheet
PDF 135.78KB |
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