SN74LS251DG4 vs T74LS251B1 feature comparison

SN74LS251DG4 Texas Instruments

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T74LS251B1 STMicroelectronics

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Pbfree Code Yes
Rohs Code Yes No
Part Life Cycle Code Obsolete Obsolete
Ihs Manufacturer TEXAS INSTRUMENTS INC STMICROELECTRONICS
Part Package Code SOIC DIP
Package Description SOP, SOP16,.25 PLASTIC, DIP-16
Pin Count 16 16
Reach Compliance Code unknown not_compliant
HTS Code 8542.39.00.01 8542.39.00.01
Family LS LS
JESD-30 Code R-PDSO-G16 R-PDIP-T16
JESD-609 Code e4 e0
Length 9.9 mm
Load Capacitance (CL) 15 pF 15 pF
Logic IC Type MULTIPLEXER MULTIPLEXER
Max I(ol) 0.008 A 0.008 A
Moisture Sensitivity Level 1
Number of Functions 1 1
Number of Inputs 8 8
Number of Outputs 1 1
Number of Terminals 16 16
Operating Temperature-Max 70 °C 70 °C
Operating Temperature-Min
Output Characteristics 3-STATE 3-STATE
Output Polarity COMPLEMENTARY COMPLEMENTARY
Package Body Material PLASTIC/EPOXY PLASTIC/EPOXY
Package Code SOP DIP
Package Equivalence Code SOP16,.25 DIP16,.3
Package Shape RECTANGULAR RECTANGULAR
Package Style SMALL OUTLINE IN-LINE
Packing Method TUBE
Peak Reflow Temperature (Cel) 260
Power Supply Current-Max (ICC) 12 mA 10 mA
Prop. Delay@Nom-Sup 45 ns 45 ns
Propagation Delay (tpd) 28 ns 45 ns
Qualification Status Not Qualified Not Qualified
Seated Height-Max 1.75 mm 5.1 mm
Supply Voltage-Max (Vsup) 5.25 V 5.25 V
Supply Voltage-Min (Vsup) 4.75 V 4.75 V
Supply Voltage-Nom (Vsup) 5 V 5 V
Surface Mount YES NO
Technology TTL TTL
Temperature Grade COMMERCIAL COMMERCIAL
Terminal Finish NICKEL PALLADIUM GOLD TIN LEAD
Terminal Form GULL WING THROUGH-HOLE
Terminal Pitch 1.27 mm 2.54 mm
Terminal Position DUAL DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 3.9 mm 7.62 mm
Base Number Matches 1 1

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