74HCT7540N

Octal Schmitt trigger buffer/line driver; 3-state; inverting


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The 74HC7540; 74HCT7540 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard No. 7A.

The 74HC7540; 74HCT7540 provides eight inverting buffer/line drivers with 3-state outputs and Schmitt-trigger action. The 3-state outputs are controlled by the output enable inputs OE1 and OE2. A HIGH on OEn causes the outputs to assume a high-impedance OFF-state. Schmitt trigger action on the data inputs transforms slowly changing input signals into sharply defined, jitter-free output signals.

The 74HC7540; 74HCT7540 is identical to the 74HC540; 74HCT540 but has hysteresis on the data inputs.

Features and benefits

  • Inverting outputs
  • Low-power dissipation
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Multiple package options
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C
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Parametric search

Parametrics of this product

Type numberPackageNr of pinsPackage nameProduct statustpd(ns)VCC(V)FamilyNr of bitsPower dissipation considerationsLogic switching levelsOutput drive capability(mA)fmax(MHz)DescriptionTamb(Cel)
74HCT7540NSOT146-1
(DIP20)		20DIP20Production164.5 - 5.5HC(T)8lowTTL+/- 636octal inverter/line driver Schmitt-trigger; TTL enabled (3-State)-40~125

Package

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
74HCT7540N74HCT7540N,1129339 678 80112Volume productionSOT146-1
(DIP20) 		Bulk Pack74HCT7540N

Outline drawing

Package VersionPackage NamePackage DescriptionReference CodesIssue Date
SOT146-1DIP20plastic dual in-line package; 20 leads (300 mil)SC-603 (EIAJ); MS-001 (JEDEC); 2003-02-13

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
74HCT7540N74HCT7540N,11274HCT7540NAlways Pb-free6.621.5105740181268883E8NANA
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Documentation for this product

File nameTitleTypeFormatDate
74HC_HCT7540Octal Schmitt trigger buffer/line driver; 3-state; invertingData sheetpdf2012-12-31
AN11044Pin FMEA 74HC/74HCT familyApplication notepdf2011-03-16
AN252Live Insertion Aspects of Philips Logic FamiliesApplication notepdf2013-03-13
HCT_USER_GUIDEHC/T User GuideUser manualpdf1997-11-01

Ordering & availability

Type numberOrdering code (12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
74HCT7540N9339 678 8011274HCT7540N,112EUAVNET EXPRESS EUROPE1,2245/23/2013Buy onlinenot available
   NADIGI-KEY CORPORATION6815/23/2013Buy online 
   EUARROW EUROPE6485/23/2013Buy online 
   NAMOUSER ELECTRONICS4795/23/2013Buy online 

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