SN74AHC74

ACTIVE

Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear and Preset

Top

Product details

Parameters

Technology Family AHC Input type Standard CMOS Output type Push-Pull VCC (Min) (V) 2 VCC (Max) (V) 5.5 Channels (#) 2 Clock Frequency (Max) (MHz) 110 ICC (uA) 20 IOL (Max) (mA) 8 IOH (Max) (mA) -8 Features Balanced outputs, High speed (tpd 10-50ns), Over-voltage tolerant inputs Rating Catalog open-in-new Find other D-type flip-flop

Package | Pins | Size

PDIP (N) 14 181 mm² 19.3 x 9.4 SOIC (D) 14 52 mm² 8.65 x 6 SOP (NS) 14 80 mm² 10.2 x 7.8 SSOP (DB) 14 48 mm² 6.2 x 7.8 TSSOP (PW) 14 32 mm² 5 x 6.4 TVSOP (DGV) 14 23 mm² 3.6 x 6.4 VQFN (RGY) 14 12 mm² 3.5 x 3.5 open-in-new Find other D-type flip-flop

Features

  • Operating Range 2-V to 5.5-V VCC
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

open-in-new Find other D-type flip-flop

Description

The ’AHC74 dual positive-edge-triggered devices are D-type flip-flops.

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.

open-in-new Find other D-type flip-flop
Download

Technical documentation

= Featured
No results found. Please clear your search and try again. View all 23
Type Title Date
* Datasheet SN54AHC74, SN74AHC74 datasheet (Rev. K) Dec. 02, 2013
Selection guides Little Logic Guide 2018 (Rev. G) Jul. 06, 2018
Selection guides Logic Guide (Rev. AB) Jun. 12, 2017
Application notes How to Select Little Logic (Rev. A) Jul. 26, 2016
Application notes Implications of Slow or Floating CMOS Inputs (Rev. D) Jun. 23, 2016
Application notes Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) Dec. 02, 2015
Application notes Power-Up Behavior of Clocked Devices (Rev. A) Feb. 06, 2015
User guides LOGIC Pocket Data Book (Rev. B) Jan. 16, 2007
More literature Design Summary for WCSP Little Logic (Rev. B) Nov. 04, 2004
Application notes Semiconductor Packing Material Electrostatic Discharge (ESD) Protection Jul. 08, 2004
Application notes Selecting the Right Level Translation Solution (Rev. A) Jun. 22, 2004
More literature Logic Cross-Reference (Rev. A) Oct. 07, 2003
Application notes Advanced High-Speed CMOS (AHC) Logic Family (Rev. C) Dec. 02, 2002
Application notes Texas Instruments Little Logic Application Report Nov. 01, 2002
Application notes TI IBIS File Creation, Validation, and Distribution Processes Aug. 29, 2002
User guides AHC/AHCT Designer's Guide February 2000 (Rev. D) Feb. 24, 2000
Application notes Benefits & Issues of Migrating 5-V and 3.3-V Logic to Lower-Voltage Supplies (Rev. A) Sep. 08, 1999
More literature Military Advanced High-Speed CMOS Logic (AHC/AHCT) Apr. 01, 1998
More literature Military Advanced High-Speed CMOS Logic (AHC/AHCT) (Rev. C) Apr. 01, 1998
Application notes Migration From 3.3-V To 2.5-V Power Supplies For Logic Devices Dec. 01, 1997
Application notes Bus-Interface Devices With Output-Damping Resistors Or Reduced-Drive Outputs (Rev. A) Aug. 01, 1997
Application notes CMOS Power Consumption and CPD Calculation (Rev. B) Jun. 01, 1997
Application notes Live Insertion Oct. 01, 1996

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$10.00
Description
This EVM is designed to support any logic device that has a D, DW, DB, NS, PW, P, N, or DGV package in a 14 to 24 pin count.
Features
  • Board design allows for versatility in evaluation
  • Supports a wide-range of logic devices

Design tools & simulation

SIMULATION MODELS Download
SCLM092.ZIP (65 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
PDIP (N) 14 View options
SO (NS) 14 View options
SOIC (D) 14 View options
SSOP (DB) 14 View options
TSSOP (PW) 14 View options
TVSOP (DGV) 14 View options
VQFN (RGY) 14 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos