SN74HC251N

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 198...