SN54ALS257FK vs SN74HCT257DE4 feature comparison

SN54ALS257FK Texas Instruments

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SN74HCT257DE4 Texas Instruments

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Rohs Code No Yes
Part Life Cycle Code Obsolete Obsolete
Ihs Manufacturer TEXAS INSTRUMENTS INC TEXAS INSTRUMENTS INC
Package Description QCCN, LCC20,.35SQ GREEN, PLASTIC, SOIC-16
Reach Compliance Code not_compliant unknown
HTS Code 8542.39.00.01 8542.39.00.01
Family ALS HCT
JESD-30 Code S-CQCC-N20 R-PDSO-G16
Length 8.89 mm 9.9 mm
Load Capacitance (CL) 50 pF 50 pF
Logic IC Type MULTIPLEXER MULTIPLEXER
Max I(ol) 0.012 A 0.006 A
Number of Functions 4 4
Number of Inputs 2 2
Number of Outputs 1 1
Number of Terminals 20 16
Operating Temperature-Max 125 °C 85 °C
Operating Temperature-Min -55 °C -40 °C
Output Characteristics 3-STATE 3-STATE
Output Polarity TRUE TRUE
Package Body Material CERAMIC, METAL-SEALED COFIRED PLASTIC/EPOXY
Package Code QCCN SOP
Package Equivalence Code LCC20,.35SQ SOP16,.25
Package Shape SQUARE RECTANGULAR
Package Style CHIP CARRIER SMALL OUTLINE
Peak Reflow Temperature (Cel) NOT SPECIFIED 260
Power Supply Current-Max (ICC) 14 mA
Prop. Delay@Nom-Sup 14 ns 38 ns
Propagation Delay (tpd) 14 ns 48 ns
Qualification Status Not Qualified Not Qualified
Seated Height-Max 2.03 mm 1.75 mm
Supply Voltage-Max (Vsup) 5.5 V 5.5 V
Supply Voltage-Min (Vsup) 4.5 V 4.5 V
Supply Voltage-Nom (Vsup) 5 V 5 V
Surface Mount YES YES
Technology TTL CMOS
Temperature Grade MILITARY INDUSTRIAL
Terminal Form NO LEAD GULL WING
Terminal Pitch 1.27 mm 1.27 mm
Terminal Position QUAD DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED 30
Width 8.89 mm 3.9 mm
Base Number Matches 2 1
Pbfree Code Yes
Part Package Code SOIC
Pin Count 16
JESD-609 Code e4
Moisture Sensitivity Level 1
Packing Method TUBE
Terminal Finish NICKEL PALLADIUM GOLD

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