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Details, datasheet, quote on part number:SN54F253J
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Datasheet text preview:
SN54F253, SN74F253 DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SDFS064A D2032, MARCH 1987 REVISED OCTOBER 1993
· · · ·
3-State Versions of SN54F153 and SN74F153 Permits Multiplexing From N Lines to One Line Performs Parallel-to-Serial Conversion Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs
SN54F253 . . . J PACKAGE SN74F253 . . . D OR N PACKAGE (TOP VIEW)
description
These data selectors/multiplexers contain inverters and drivers to supply full binary decoding data selection to the AND-OR gates. Separate output-control inputs are provided for each of the two 4-line sections. The 3-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at a high-impedance state), the low impedance of the single enabled output will drive the bus line to a high or low logic level. Each output has its own strobe (G) inputs. The output is disabled when its strobe is high. The SN54F253 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74F253 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE INPUTS SELECT B X L L L L H H H H A X L L H H L L H H C0 X L H X X X X X X X X X L H X X X X DATA C1 C2 X X X X X L H X X C3 X X X X X X X L H STROBE G H L L L L L L L L
1G B 1C3 1C2 1C1 1C0 1Y GND
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VC C 2G A 2C3 2C2 2C1 2C0 2Y
SN54F253 . . . FK PACKAGE (TOP VIEW)
1C3 1C2 NC 1C1 1C0
4 5 6 7 8
3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
B 1G NC VCC 2G A 2C3 NC 2C2 2C1
NC No internal connection OUTPUT Y Z L H L H L H L H
Copyright © 1993, Texas Instruments Incorporated
Select inputs A and B are common to both sections.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
1Y GND NC 2Y 2C0
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SN54F253, SN74F253 DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SDFS064A D2032, MARCH 1987 REVISED OCTOBER 1993
logic symbol
A B 14 2 0 1
G0 3
1G 1C0 1C1 1C2 1C3 2G 2C0 2C1 2C2 2C3
1 6 5 4 3 15 10 11 12 13
EN 0 1 2 3
MUX 7
1Y
9
2Y
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.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54F253, SN74F253 DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SDFS064A D2032, MARCH 1987 REVISED OCTOBER 1993
logic diagram (positive logic)
1G 1
1C0
6
1C1 Data 1 1C2
5 7 4 1Y
1C3
3
B
2
Select A 14
2C0
10
2C1 Data 2 2C2
11
9 12
2Y
13 2C3
2G
15
Pin numbers shown are for the D, J, and N packages.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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