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SN74AHC74Q-Q1

ACTIVE

Automotive, catalog dual positive-edge-triggered D-type flip-flops with clear and preset

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Data sheet

SN74AHC74Q-Q1

ACTIVE
Data sheet Order now

Product details

Number of channels 2 Technology family AHC Supply voltage (min) (V) 2 Supply voltage (max) (V) 5.5 Input type Standard CMOS Output type Push-Pull Clock frequency (max) (MHz) 110 IOL (max) (mA) 8 IOH (max) (mA) -8 Supply current (max) (µA) 20 Features Balanced outputs, High speed (tpd 10-50ns), Over-voltage tolerant inputs Operating temperature range (°C) -40 to 125 Rating Automotive
Number of channels 2 Technology family AHC Supply voltage (min) (V) 2 Supply voltage (max) (V) 5.5 Input type Standard CMOS Output type Push-Pull Clock frequency (max) (MHz) 110 IOL (max) (mA) 8 IOH (max) (mA) -8 Supply current (max) (µA) 20 Features Balanced outputs, High speed (tpd 10-50ns), Over-voltage tolerant inputs Operating temperature range (°C) -40 to 125 Rating Automotive
SOIC (D) 14 51.9 mm² 8.65 x 6 TSSOP (PW) 14 32 mm² 5 x 6.4 WQFN (BQA) 14 7.5 mm² 3 x 2.5
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: -40°C to +125°C
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B

  • Available in wettable flank QFN package

  • Operating range 2V to 5.5V VCC
  • Latch-up performance exceeds 250mA per JESD 17
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: -40°C to +125°C
    • Device HBM ESD classification level 2
    • Device CDM ESD classification level C4B

  • Available in wettable flank QFN package

  • Operating range 2V to 5.5V VCC
  • Latch-up performance exceeds 250mA per JESD 17

The SN74AHC74Q-Q1 dual positive-edge-triggered device is a D-type flip-flop.

A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup time requirements is transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold-time interval, data at the D input can be changed without affecting the levels at the outputs.

The SN74AHC74Q-Q1 dual positive-edge-triggered device is a D-type flip-flop.

A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup time requirements is transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold-time interval, data at the D input can be changed without affecting the levels at the outputs.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet SN74AHC74Q-Q1 Automotive Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear and Preset datasheet (Rev. D) PDF | HTML 20 Feb 2024
Selection guide Logic Guide (Rev. AC) PDF | HTML 13 Nov 2025
Application note Power-Up Behavior of Clocked Devices (Rev. B) PDF | HTML 15 Dec 2022
Application note Implications of Slow or Floating CMOS Inputs (Rev. E) 26 Jul 2021
Selection guide Little Logic Guide 2018 (Rev. G) 06 Jul 2018
Application note How to Select Little Logic (Rev. A) 26 Jul 2016
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 02 Dec 2015
More literature Automotive Logic Devices Brochure 27 Aug 2014
User guide LOGIC Pocket Data Book (Rev. B) 16 Jan 2007
Product overview Design Summary for WCSP Little Logic (Rev. B) 04 Nov 2004
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 08 Jul 2004
Application note Selecting the Right Level Translation Solution (Rev. A) 22 Jun 2004
Application note Advanced High-Speed CMOS (AHC) Logic Family (Rev. C) 02 Dec 2002
Application note Texas Instruments Little Logic Application Report 01 Nov 2002
Application note TI IBIS File Creation, Validation, and Distribution Processes 29 Aug 2002
Design guide AHC/AHCT Designer's Guide February 2000 (Rev. D) 24 Feb 2000
Application note Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A) 08 Sep 1999
Product overview Military Advanced High-Speed CMOS Logic (AHC/AHCT) (Rev. C) 01 Apr 1998
Application note Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices 01 Dec 1997
Application note Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) 01 Aug 1997
Application note CMOS Power Consumption and CPD Calculation (Rev. B) 01 Jun 1997
Application note Live Insertion 01 Oct 1996

Design & development

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Evaluation board

14-24-LOGIC-EVM — Logic product generic evaluation module for 14-pin to 24-pin D, DB, DGV, DW, DYY, NS and PW packages

The 14-24-LOGIC-EVM evaluation module (EVM) is designed to support any logic device that is in a 14-pin to 24-pin D, DW, DB, NS, PW, DYY or DGV package,

User guide: PDF | HTML
Not available on TI.com
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 14 Ultra Librarian
TSSOP (PW) 14 Ultra Librarian
WQFN (BQA) 14 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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