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SN54HC251

Texas Instruments
Part Number SN54HC251
Manufacturer Texas Instruments
Description Data Selectors/Multiplexers
Published Dec 24, 2022
Detailed Description SN54HC251, SN74HC251 SCLS132F – DECEMBER 1982 – REVISED FEBRUARY 2022 SNx4HC251 Data Selectors/Multiplexers With 3-State...
Datasheet PDF File SN54HC251 PDF File

SN54HC251
SN54HC251

Overview
SN54HC251, SN74HC251 SCLS132F – DECEMBER 1982 – REVISED FEBRUARY 2022 SNx4HC251 Data Selectors/Multiplexers With 3-State Outputs 1 Features • 3-state version of ’HC151 • Wide operating voltage range of 2 V to 6 V • High-current 3-state outputs interface directly with system bus or can 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 • Perform parallel-to-serial conversion • Complementary outputs provide true and inverted data 2 Description The SNx4HC251 is a data selector/multiplexer containing full binary decoding to select 1of-8 data sources and features strobe-controlled complementary 3-state outputs.
PART NUMBER SN74HC251D SN74HC251DB SN74HC251N SN74HC251NS SN74HC251PW SN54HC251J SNJ54HC251FK Device Information PACKAGE(1) BODY SIZE (NOM) SOIC (16) 9.
90 mm × 3.
90 mm SSOP (16) 6.
20 mm × 5.
30 mm PDIP (16) 19.
31 mm × 6.
35 mm SO (16) 6.
20 mm × 5.
30 mm TSSOP (16) 5.
00 mm × 4.
40 mm CDIP (16) 24.
38 mm × 6.
92 mm LCCC (20) 8.
89 mm × 8.
45 mm (1) For all available packages, see the orderable addendum at the end of the data sheet.
Pin numbers shown are for the D, DB, J, N, NS, PW, and W packages.
Functional Block Diagram An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers.
PRODUCTION DATA.
SN54HC251, SN74HC251 SCLS132F – DECEMBER 1982 – REVISED FEBRUARY 2022 www.
ti.
com Table of Contents 1 Features.
1 2 Description.
1 3 Revision History.
.
2 4 Pin Configuration and Functions3 5 Specifications.
4 5.
1 Absolute Maximum Ratings.
.
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