DM74ALS521WMX vs SN74ALS688DWE4 feature comparison

DM74ALS521WMX National Semiconductor Corporation

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SN74ALS688DWE4 Texas Instruments

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Part Life Cycle Code Transferred Obsolete
Ihs Manufacturer NATIONAL SEMICONDUCTOR CORP TEXAS INSTRUMENTS INC
Package Description 0.300 INCH, PLASTIC, SOP-20 SOP, SOP20,.4
Reach Compliance Code unknown unknown
Additional Feature CASCADABLE CASCADABLE
Family ALS ALS
JESD-30 Code R-PDSO-G20 R-PDSO-G20
Length 12.8 mm 12.8 mm
Load Capacitance (CL) 50 pF 50 pF
Logic IC Type IDENTITY COMPARATOR IDENTITY COMPARATOR
Number of Bits 8 8
Number of Functions 1 1
Number of Terminals 20 20
Operating Temperature-Max 70 °C 70 °C
Operating Temperature-Min
Output Polarity INVERTED INVERTED
Package Body Material PLASTIC/EPOXY PLASTIC/EPOXY
Package Code SOP SOP
Package Shape RECTANGULAR RECTANGULAR
Package Style SMALL OUTLINE SMALL OUTLINE
Power Supply Current-Max (ICC) 19 mA 19 mA
Propagation Delay (tpd) 20 ns 20 ns
Qualification Status Not Qualified Not Qualified
Seated Height-Max 2.65 mm 2.65 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 TTL
Temperature Grade COMMERCIAL COMMERCIAL
Terminal Form GULL WING GULL WING
Terminal Pitch 1.27 mm 1.27 mm
Terminal Position DUAL DUAL
Width 7.5 mm 7.5 mm
Base Number Matches 4 1
Pbfree Code Yes
Rohs Code Yes
Part Package Code SOIC
Pin Count 20
HTS Code 8542.39.00.01
JESD-609 Code e4
Moisture Sensitivity Level 1
Package Equivalence Code SOP20,.4
Peak Reflow Temperature (Cel) 260
Terminal Finish NICKEL PALLADIUM GOLD
Time@Peak Reflow Temperature-Max (s) 30

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