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Details, datasheet, quote on part number:SN74HC253
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| Part: | SN74HC253 |
| Category: | Logic => Multiplexers/Demultiplexers => Multiplexers->CMOS/BiCMOS->HC/HCT Family |
| Description: | Dual 4-line to 1-line Data Selectors/multiplexers With 3-state Outputs |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download SN74HC253 datasheet File size : 281 kB |
| Request For quote: | Find where to buy SN74HC253
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Datasheet text preview:
SN54HC253, SN74HC253 DUAL 4-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SCLS133D DECEMBER 1982 REVISED JANUARY 2003
D D D D D D D D D
3-State Version of 'HC153 Wide Operating Voltage Range of 2 V to 6 V High-Current Inverting Outputs Drive Up To 15 LSTTL Loads Low Power Consumption, 80-µA Max ICC Typical tpd = 9 ns ±6-mA Output Drive at 5 V Low Input Current of 1 µA Max Permit Multiplexing From n Lines to One Line Perform Parallel-to-Serial Conversion
SN54HC253 . . . J OR W PACKAGE SN74HC253 . . . D, DB, N, OR NS PACKAGE (TOP VIEW)
1OE B 1C3 1C2 1C1 1C0 1Y GND
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VCC 2OE A 2C3 2C2 2C1 2C0 2Y
description/ordering information
Each of these data selectors/multiplexers contains 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 (in the high-impedance state), the low impedance of the single enabled output drives the bus line to a high or low logic level. Each output has its own output-enable (OE) input. The outputs are disabled when their respective OE is high. ORDERING INFORMATION
TA PDIP N 40°C to 85°C SOIC D SOP NS SSOP DB CDIP J 55°C to 125°C CFP W LCCC FK PACKAGE Tube Tube Tape and reel Tape and reel Tape and reel Tube Tube Tube
SN54HC253 . . . FK PACKAGE (TOP VIEW)
1C3 1C2 NC 1C1 1C0
B 1OE NC VCC 2OE
3 4 5 6 7 8 2 1 20 19 18 17 16 15 14 9 10 11 12 13
A 2C3 NC 2C2 2C1
NC No internal connection
ORDERABLE PART NUMBER SN74HC253N SN74HC253D SN74HC253DR SN74HC253NSR SN74HC253DBR SNJ54HC253J SNJ54HC253W SNJ54HC253FK
SNJ54HC253FK Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 2003, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.
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
TOP-SIDE MARKING SN74HC253N HC253 HC253 HC253 SNJ54HC253J SNJ54HC253W
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SN54HC253, SN74HC253 DUAL 4-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SCLS133D DECEMBER 1982 REVISED JANUARY 2003
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 OE H L L L L L L L L OUTPUT Y Z L H L H L H L H
Select inputs A and B are common to both sections.
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
SN54HC253, SN74HC253 DUAL 4-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SCLS133D DECEMBER 1982 REVISED JANUARY 2003
logic diagram (positive logic)
A B 1OE 14 2 1
1C0
6
TG TG
1C1
5
TG 7 1Y
1C2
4
TG TG
1C3
3
TG
2OE
15
2C0
10
TG TG
2C1
11
TG 9 2Y
2C2
12
TG TG
2C3
13
TG
Pin numbers shown are for the D, DB, J, N, NS, and W packages.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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