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Products » MM74HC74A Dual D-Type Flip-Flop with Preset and Clear

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 V_CC and ground.

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Product Status/Pricing/Packaging

Index	Product	Product & Eco Status	*Pricing	Packaging & Packing Info	**Package Marking Convention	Qualification Support	Compliance Certificates
0	MM74HC74AM	Full Production ROHS Compliant	$0.1421	SO 14L NB Details SO 14L NB Drawing RAIL	Line 1:$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	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG
0	MM74HC74AMTC	Full Production Green as of Jul 2011	$0.1146	TSSOP 14L Details TSSOP 14L Drawing RAIL	Line 1:$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	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG
0	MM74HC74ASJ	Last time buys being accepted until 10-Jun-2013 as of 11-Dec-2012 ROHS Compliant	$0.2088	SOP 14L Details SOP 14L Drawing RAIL	Line 1:$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	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG
2	MM74HC74AN	Obsolete as of 02-Mar-2011 ROHS Compliant Replacement Part: MC74HC74AN	N/A	MDIP 14L Details MDIP 14L Drawing RAIL	Line 1:$Y (Fairchild logo) &Z (Plant Code) &4 (4-Digit Date Code) &K&P (Marketing Status Code)	Moisture Sensitivity Level (MSL) : NA Max Reflow Temp : 999	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG
0	MM74HC74AMX	Full Production ROHS Compliant	$0.1421	SO 14L NB Details SO 14L NB Drawing TAPE REEL	Line 1:$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	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG
0	MM74HC74ASJX	Full Production ROHS Compliant	$0.2088	SOP 14L Details SOP 14L Drawing TAPE REEL	Line 1:$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	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG
0	MM74HC74AMTCX	Full Production Green as of Jun 2011	$0.1146	TSSOP 14L Details TSSOP 14L Drawing TAPE REEL	Line 1:$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	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG

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Fairchild 1,000 piece Budgetary Pricing. *
If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
Top mark packaging information for product MM74HC74A is available. **

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

Application Note	Description
AN-313	DC Electrical Characteristics of MM74HC High Speed CMOS Logic(203 K) 05-Mar-2011
AN-314	Interfacing to MM74HC High-Speed CMOS Logic(148 K) 05-Mar-2011
AN-317	AC Characteristics of MM74HC High Speed CMOS(147 K) 05-Mar-2011
AN-319	Comparison of MM74HC to 74LS, 74S and 74ALS Logic(245 K) 05-Mar-2011
AN-339	Fairchilds Process Enhancements Eliminate the CMOS SCR Latch-Up Problem in 74HC Logic(148 K) 05-Mar-2011
AN-118	CMOS Oscillators(79 K) 05-Mar-2011
AN-310	High Speed CMOS (MM74HC) Processing(4,821 K) 05-Mar-2011

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

Additional Resources

Design Tools Knowledgebase – Ask a Question Find a local sales office Product change notices (PCN) How to Buy Products or Order Samples


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