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BCD to 7-segment latch/decoder/driver

The 74HC4511; 74HCT4511 is a BCD to 7-segment latch/decoder/driver with four address inputs (A, B, C, D), a latch enable input (LE), a ripple blanking input (BI), a lamp test input (LT), and seven segment outputs (a to g). When LE is LOW, the state of the segment outputs (a to g) is determined by the data on A to D. When LE goes HIGH, the last data present on A to D are stored in the latches and the segment outputs remain stable. When LT is LOW, all the segment outputs are HIGH independent of all other input conditions. With LT HIGH, a LOW on BI forces all segment outputs LOW. The inputs LT and BI do not affect the latch circuit. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HC4511D 74HC4511D,653 933714880653 SOT109-1 Order product
74HC4511D 74HC4511D,652 933714880652 SOT109-1 Order product

Features and benefits

  • Complies with JEDEC standard no. 7A
  • Input levels:
    • For 74HC4511: CMOS level
    • For 74HCT4511: TTL level
  • Latch storage of BCD inputs
  • Blanking input
  • Lamp test input
  • Driving common cathode LED displays
  • Guaranteed 10 mA drive capability per output
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Specified from -40 °C to +85 °C and -40 °C to +125 °C


  • Driving LED displays
  • Driving incandescent displays
  • Driving fluorescent displays
  • Driving LCD displays
  • Driving gas discharge displays


Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HC4511DProduction2.0 - 6.0CMOS-1028low-40~125721.029SO16


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9337 148 80653 )
Reel 13" Q1/T1 CECC
( 9337 148 80652 )
Active74HC4511DBulk Pack, CECC

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
Quality and reliability disclaimer

Documentation (5)

File nameTitleTypeDate
74HC_HCT4511BCD to 7-segment latch, decoder, driverData sheet2017-03-17
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08


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Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HC4511D74HC4511D,653933714880653Reel 13" Q1/T1 CECCOrder product
74HC4511D74HC4511D,652933714880652Bulk Pack, CECCOrder product


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