74ACQ544FCX vs 74AC540SCQR feature comparison

74ACQ544FCX Texas Instruments

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74AC540SCQR Texas Instruments

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Part Life Cycle Code Obsolete Obsolete
Ihs Manufacturer NATIONAL SEMICONDUCTOR CORP NATIONAL SEMICONDUCTOR CORP
Part Package Code DFP SOIC
Package Description DFP, SOP,
Pin Count 24 20
Reach Compliance Code unknown unknown
HTS Code 8542.39.00.01 8542.39.00.01
Family AC AC
JESD-30 Code R-CDFP-F24 R-PDSO-G20
Length 15.4305 mm 12.8 mm
Logic IC Type REGISTERED BUS TRANSCEIVER BUS DRIVER
Number of Bits 8 8
Number of Functions 1 1
Number of Ports 2 2
Number of Terminals 24 20
Operating Temperature-Max 85 °C 85 °C
Operating Temperature-Min -40 °C -40 °C
Output Characteristics 3-STATE 3-STATE
Output Polarity INVERTED INVERTED
Package Body Material CERAMIC, METAL-SEALED COFIRED PLASTIC/EPOXY
Package Code DFP SOP
Package Shape RECTANGULAR RECTANGULAR
Package Style FLATPACK SMALL OUTLINE
Propagation Delay (tpd) 12.5 ns 6 ns
Qualification Status Not Qualified Not Qualified
Seated Height-Max 2.286 mm 2.65 mm
Supply Voltage-Max (Vsup) 6 V 6 V
Supply Voltage-Min (Vsup) 2 V 2 V
Supply Voltage-Nom (Vsup) 5 V 5 V
Surface Mount YES YES
Technology CMOS CMOS
Temperature Grade INDUSTRIAL INDUSTRIAL
Terminal Form FLAT GULL WING
Terminal Pitch 1.27 mm 1.27 mm
Terminal Position DUAL DUAL
Base Number Matches 1 1
Additional Feature WITH DUAL OUTPUT ENABLE
Load Capacitance (CL) 50 pF
Width 7.5 mm

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