SN74LS646DWR vs SN54LS646JS feature comparison

SN74LS646DWR Texas Instruments

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SN54LS646JS Monolithic Memories (RETIRED)

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Pbfree Code Yes
Rohs Code Yes No
Part Life Cycle Code Obsolete Obsolete
Ihs Manufacturer TEXAS INSTRUMENTS INC MONOLITHIC MEMORIES
Part Package Code SOIC
Package Description GREEN, PLASTIC, SOIC-24 DIP, DIP24,.3
Pin Count 24
Reach Compliance Code compliant unknown
HTS Code 8542.39.00.01 8542.39.00.01
Additional Feature DIRECTION CONTROL; SELECT INPUT FOR MULTIPLEXED TRANSMISSION OF REGISTERED OR REAL TIME DATA WITH DIRECTION CONTROL
Control Type INDEPENDENT CONTROL INDEPENDENT CONTROL
Count Direction BIDIRECTIONAL BIDIRECTIONAL
Family LS LS
JESD-30 Code R-PDSO-G24 R-GDIP-T24
Length 15.4 mm
Load Capacitance (CL) 45 pF
Logic IC Type REGISTERED BUS TRANSCEIVER REGISTERED BUS TRANSCEIVER
Number of Bits 8 8
Number of Functions 1 1
Number of Ports 2 2
Number of Terminals 24 24
Operating Temperature-Max 70 °C 125 °C
Operating Temperature-Min -55 °C
Output Characteristics 3-STATE 3-STATE
Output Polarity TRUE TRUE
Package Body Material PLASTIC/EPOXY CERAMIC, GLASS-SEALED
Package Code SOP DIP
Package Equivalence Code SOP24,.4 DIP24,.3
Package Shape RECTANGULAR RECTANGULAR
Package Style SMALL OUTLINE IN-LINE
Packing Method TR
Peak Reflow Temperature (Cel) NOT SPECIFIED
Power Supply Current-Max (ICC) 165 mA
Propagation Delay (tpd) 35 ns 35 ns
Qualification Status Not Qualified Not Qualified
Seated Height-Max 2.65 mm
Supply Voltage-Max (Vsup) 5.25 V 5.5 V
Supply Voltage-Min (Vsup) 4.75 V 4.5 V
Supply Voltage-Nom (Vsup) 5 V 5 V
Surface Mount YES NO
Technology TTL TTL
Temperature Grade COMMERCIAL MILITARY
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
Trigger Type POSITIVE EDGE POSITIVE EDGE
Width 7.5 mm
Base Number Matches 2 1
JESD-609 Code e0
Terminal Finish TIN LEAD

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