HEF4049B

Hex inverting buffers

The HEF4049B provides six inverting buffers with high current output capability suitable for driving TTL or high capacitive loads. Since input voltages in excess of the buffers supply voltage are permitted, the buffers may also be used to convert logic levels of up to 15 V to standard TTL levels.

It operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input.

Features and benefits

  • Accepts input voltages in excess of the supply voltage
  • Fully static operation
  • 5 V, 10 V, and 15 V parametric ratings
  • Standardized symmetrical output characteristics
  • Specified from -40 °C to +85 °C
  • Complies with JEDEC standard JESD 13-B

Applications

  • LOCMOS (Local Oxidation CMOS) to DTL/TTL converter
  • HIGH sink current for driving two TTL loads
  • HIGH-to-LOW level logic conversion

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)fmax (MHz)No of bitsPower dissipation considerationsRth(j-a) (K/W)Rth(j-c) (K/W)Package name
HEF4049BTProduction3.0 - 15CMOS-3 / +20106medium8443.1SO16

Package

Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
HEF4049BT
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1 CECCActiveHEF4049BTHEF4049BT,653
( 9333 729 20653 )
Bulk Pack, CECCActiveHEF4049BTHEF4049BT,652
( 9333 729 20652 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
HEF4049BTHEF4049BT,653HEF4049BTweek 12, 200575.32.993.34E811
HEF4049BTHEF4049BT,652HEF4049BTweek 12, 200575.32.993.34E811
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
HEF4049BHex inverting buffersData sheet2017-03-17
AN11051Pin FMEA HEF4000 familyApplication note2019-01-09
Nexperia_Selection_guide_2020Nexperia Selection Guide 2020Selection guide2020-01-31
Nexperia_Selection_guide_2021Nexperia Selection Guide 2021Selection guide2021-01-08
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2021-01-06
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08

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Ordering, pricing & availability

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