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SN54F257 |
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| Part Number | SN54F257 |
| Manufacturer | Texas Instruments (https://www.ti.com/) |
| Description | The ′F257 is designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs will not load the data lines when the output enable (OE) input i... |
| Features |
ation from 0°C to 70°C.
FUNCTION TABLE
INPUTS OE A /B A
OUTPUT
B
Y
H
X
X
X
Z
L
L
L
X
L
L
L
H
X
H
L
H
X
L
L
L
H
X
H
H
1B
3 2 1 20 19
4
18
4A
1Y 5
17 4B
NC 6
16 NC
2A 7
15 4Y
2B 8
14 3A
9 10 11 12 13
2Y GND
NC 3Y 3B
NC − No internal connection
logic symbol†
15 OE
1 A /B
2 1A
3 1B
5 2A
6 2B
11 3A
10 3B
14 4A
13 4B
EN G1
1 MUX 1
4 1Y
7 2Y
9 3Y
12 4Y
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, J, and N packages.
PRODUCTION DATA information is current as of publication date.... |
| Document |
 SN54F257 Data Sheet
PDF 681.90KB |
| Distributor | Stock | Price | Buy |
|---|
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | SN54F251B |
Texas Instruments |
1-of-8 Data Selectors/Multiplexers |
|
| 2 | SN54F253 |
Texas Instruments |
Dual 1-of-4 Data Selector/Multiplexers |
|
| 3 | SN54F258 |
Texas Instruments |
Quadruple 2-Line To 1-Line Data Selectors/Multiplexers |
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| 4 | SN54F20 |
Texas Instruments |
DUAL 4-INPUT POSITIVE-NAND GATES |
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| 5 | SN54F21 |
Texas Instruments |
Dual 4-Input Positive-AND Gates |
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