SN74ALS642A-1DW vs SN74LS642NDS feature comparison

SN74ALS642A-1DW Rochester Electronics LLC

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SN74LS642NDS Motorola Semiconductor Products

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Pbfree Code Yes
Rohs Code Yes No
Part Life Cycle Code Active Obsolete
Ihs Manufacturer ROCHESTER ELECTRONICS LLC MOTOROLA INC
Part Package Code SOIC
Package Description GREEN, PLASTIC, SO-20 DIP, DIP20,.3
Pin Count 20
Reach Compliance Code unknown unknown
Additional Feature WITH DIRECTION CONTROL WITH DIRECTION CONTROL
Family ALS LS
JESD-30 Code R-PDSO-G20 R-PDIP-T20
JESD-609 Code e4 e0
Length 12.8 mm 26.415 mm
Logic IC Type BUS TRANSCEIVER BUS TRANSCEIVER
Moisture Sensitivity Level 1
Number of Bits 8 8
Number of Functions 1 1
Number of Ports 2 2
Number of Terminals 20 20
Operating Temperature-Max 70 °C 70 °C
Operating Temperature-Min
Output Characteristics OPEN-COLLECTOR OPEN-COLLECTOR
Output Polarity INVERTED INVERTED
Package Body Material PLASTIC/EPOXY PLASTIC/EPOXY
Package Code SOP DIP
Package Shape RECTANGULAR RECTANGULAR
Package Style SMALL OUTLINE IN-LINE
Peak Reflow Temperature (Cel) 260
Propagation Delay (tpd) 22 ns 25 ns
Seated Height-Max 2.65 mm 4.19 mm
Supply Voltage-Max (Vsup) 5.5 V 5.25 V
Supply Voltage-Min (Vsup) 4.5 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) NOT SPECIFIED
Width 7.5 mm 7.62 mm
Base Number Matches 2 3
HTS Code 8542.39.00.01
Control Type COMMON CONTROL
Count Direction BIDIRECTIONAL
Max I(ol) 0.024 A
Package Equivalence Code DIP20,.3
Qualification Status Not Qualified

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