MM74HC74A − Dual D-Type Flip-Flop with Preset and Clear

The MM74HC74A utilizes advanced silicon-gate CMOS technology to achieve operating speeds similar to the equivalent LS-TTL part. It possesses the high noise immunity and low power consumption of standard CMOS integrated circuits, along with the ability to drive 10 LS-TTL loads.     This flip-flop has independent data, preset, clear, and clock inputs and Q and Q# outputs. The logic level present at the data input is transferred to the output during the positive-going transition of the clock pulse. Preset and clear are independent of the clock and accomplished by a low level at the appropriate input.     The 74HC logic family is functionally and pinout compatible with the standard 74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground.

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Product Status/Pricing/Packaging

Product Product & Eco Status *Pricing Packaging & Packing Info **Package Marking Convention Qualification Support Compliance Certificates
0 MM74HC74AM Full Production
ROHS Compliant
$0.1421 SO 14L NB Details RAIL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:MM74HC
Line 3:74AM
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
0 MM74HC74AMTC Full Production
Green as of Jul 2011
$0.1146 TSSOP 14L Details RAIL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:HC74A
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
0 MM74HC74ASJ Last time buys being accepted until 10-Jun-2013 as of 11-Dec-2012
ROHS Compliant
$0.2088 SOP 14L Details RAIL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:HC74ASJ
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
0 MM74HC74AMX Full Production
ROHS Compliant
$0.1421 SO 14L NB Details TAPE REEL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:MM74HC
Line 3:74AM
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
0 MM74HC74ASJX Full Production
ROHS Compliant
$0.2088 SOP 14L Details TAPE REEL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:HC74ASJ
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
0 MM74HC74AMTCX Full Production
Green as of Jun 2011
$0.1146 TSSOP 14L Details TAPE REEL Line 1:$Y (Fairchild logo)
&Z (Plant Code)
&2 (2-Digit Date Code) &K
Line 2:HC74A
FIT :  0.9  
Moisture Sensitivity Level (MSL) :  1  
Max Reflow Temp :  260  
Show discontinued variants ...

Features

  • Typical propagation delay: 20 ns
  • Wide power supply range: 2-6V
  • Low quiescent current: 40 µA maximum (74HC Series)
  • Low input current: 1 µA maximum
  • Fanout of 10 LS-TTL loads

Applications

  • Server & Mainframe
  • Workstation
  • Desktop PC
  • Notebook PC
  • PC Server
  • Media Tablets
  • Storage & Peripherals
  • Printer
  • Graphic Card
  • LCD Monitor
  • CRT/RPTV
  • Other Data Processing
  • Routers & LAN Switches
  • SAN
  • Long-haul & Metro
  • Broadband Access
  • Broadband Modem
  • Enterprise Voice Network
  • Central Office
  • Broadcast & Studio
  • Other Wired Communications
  • Mobile Handsets
  • Wireless LAN Card & Broadband Access
  • Wireless LAN Access Point/Router
  • Mobile Comm Infrastructure
  • Other Wireless Communications
  • PMP/MP3 Players
  • Home Audio System Components
  • CRT/RPTV
  • LCD TV
  • PDP TV
  • Camcorder
  • DVD
  • Set Top Boxes
  • DSC
  • Video Game Console
  • E-book Reader
  • Consumer Appliances
  • Other Audio & Video
  • Other Consumer Electronics
  • Medical Electronics/Devices
  • Automation
  • Test and Measurement
  • Building & Home Control
  • Other Industrial

Application Notes

Models

For additional information please visit the Models page.

Package Condition Temperature Range Vcc Range Software Version Revision Date
IBIS
TSSOP 14L Electrical;Fast;Slow;Thermal;Typical -40°C to 85°C 4.5V to 5.5V 2.1 Feb 28, 2012
SO 14L NB Electrical;Fast;Slow;Thermal;Typical -40°C to 85°C 4.5V to 5.5V 2.1 Feb 28, 2012
HSPICE
SO 14L NB Typical 25°C to 150°C 4.5V to 5.5V 98.2 Feb 28, 2012
Fast 25°C to 150°C 4.5V to 5.5V 98.2 Feb 28, 2012
Slow 25°C to 150°C 4.5V to 5.5V 98.2 Feb 28, 2012


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