74AHC377-Q100; 74AHCT377-Q100

Octal D-type flip-flop with data enable; positive-edge trigger

The 74AHC377-Q100; 74AHCT377-Q100 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. 7-A. The 74AHC377-Q100; 74AHCT377-Q100 has eight edge-triggered, D-type flip-flops with individual D inputs and Q outputs. A common clock input (CP) loads all flip-flops simultaneously when the data enable input (E) is LOW. The state of each D input, one set-up time before the LOW-to-HIGH clock transition, is transferred to the corresponding output (Qn) of the flip-flop. The E input is only required to be stable one set-up time prior to the LOW-to-HIGH transition for predictable operation.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.


  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)
    • Specified from ‑40 °C to +85 °C and from ‑40 °C to +125 °C
  • Balanced propagation delays
  • All inputs have Schmitt-trigger actions
  • Inputs accept voltages higher than VCC
  • Ideal for addressable register applications
  • Data enable for address and data synchronization
  • Eight positive-edge triggered D-type flip-flops
  • Input levels:
    • For 74AHC377-Q100: CMOS level
    • For 74AHCT377-Q100: TTL level
  • ESD protection:
    • MIL-STD-883, method 3015 exceeds 2000 V
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)
  • Multiple package options

Target applications


Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)fmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74AHC377D-Q100Production2.0 - 5.5CMOS± 83.9175low-40~1258527.461SO20
74AHC377PW-Q100Production2.0 - 5.5CMOS± 83.9175low-40~1251014.645TSSOP20
74AHCT377D-Q100Production4.5 - 5.5TTL± 84.0140low-40~1258527.461SO20
74AHCT377PW-Q100Production4.5 - 5.5TTL± 84.0140low-40~1251014.645TSSOP20


Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
SOT163-1Reel 13" Q1/T1Active74AHC377D74AHC377D-Q100J
( 9353 034 08118 )
Reel 13" Q1/T1ActiveAHC37774AHC377PW-Q100J
( 9353 013 77118 )
SOT163-1Reel 13" Q1/T1Active74AHCT377D74AHCT377D-Q100J
( 9353 013 88118 )
Reel 13" Q1/T1ActiveAHCT37774AHCT377PW-Q100J
( 9353 012 08118 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRMSLMSL leadfree
74AHC377D-Q10074AHC377D-Q100J74AHC377D-Q100Always Pb-free84.911
74AHC377PW-Q10074AHC377PW-Q100J74AHC377PW-Q100Always Pb-free84.911
74AHCT377D-Q10074AHCT377D-Q100J74AHCT377D-Q100Always Pb-free84.911
74AHCT377PW-Q10074AHCT377PW-Q100J74AHCT377PW-Q100Always Pb-free84.911
Quality and reliability disclaimer

Documentation (10)

File nameTitleTypeDate
74AHC_AHCT377_Q100Octal D-type flip-flop with data enable; positive-edge triggerData sheet2017-05-03
ahc377ahc377 IBIS modelIBIS model2013-04-07
ahct377ahct377 IBIS modelIBIS model2013-04-07
SOT360-1plastic, thin shrink small outline package; 20 leads; 0.65 mm pitch; 6.5 mm x 4.4 mm x 1.1 mm bodyOutline drawing2018-10-18
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT360-1_118TSSOP20; Reel pack for SMD, 13''; Q1/T1 product orientationPacking2020-02-26
SOT163-1_118SO20; Reel pack for SMD, 13"; Q1/T1 product orientationPacking2020-02-14
SOT163-1_115Tape reel SMD; standard product orientation 12NC ending 115Packing2013-04-25
SOT163-1plastic, small outline package; 20 leads; 1.27 mm pitch; 12.8 mm x 7.5 mm x 2.65 mm bodyOutline drawing2018-10-18
SOT163-1_518SO20; Reel dry pack for SMD, 13"; Q1/T1 product orientationPacking2020-02-14


If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.


File nameTitleTypeDate
ahc377ahc377 IBIS modelIBIS model2013-04-07
ahct377ahct377 IBIS modelIBIS model2013-04-07


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