The ′F258 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 is at a high logic level. SN54F258 . . . J PACKAGE SN74F258 . . . D OR N PACKAGE (TOP VIEW) A /B 1 1A 2 1B 3 1Y 4 2A 5 2B 6 2Y 7 GND 8 16 VCC 15 OE 14 4A 13 4.
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 H L L H X L L H X L H L H X H L 3 2 1 20 19 1B 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. P.
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 | SN54F257 |
Texas Instruments |
Quadruple 2-Line To 1-Line Data Selectors/Multiplexers | |
4 | SN54F20 |
Texas Instruments |
DUAL 4-INPUT POSITIVE-NAND GATES | |
5 | SN54F21 |
Texas Instruments |
Dual 4-Input Positive-AND Gates | |
6 | SN54F240 |
Texas Instruments |
OCTAL BUFFERS/DRIVERS | |
7 | SN54F241 |
Texas Instruments |
OCTAL BUFFERS/DRIVERS | |
8 | SN54F243 |
Texas Instruments |
QUADRUPLE BUS TRANSCEIVERS | |
9 | SN54F244 |
Texas Instruments |
OCTAL BUFFERS/DRIVERS | |
10 | SN54F245 |
Texas Instruments |
OCTAL BUS TRANSCEIVERS | |
11 | SN54F27 |
Texas Instruments |
TRIPLE 3-INPUT POSITIVE-NOR GATES | |
12 | SN54F280B |
Texas Instruments |
9-Bit Parity Generators/Checkers |