Fairchild MM74C74 Data Handbook
Summary
The MM74C74 is a low-power, dual D-type CMOS flip-flop integrated circuit designed for reliable digital logic applications. This manual provides comprehensive technical specifications, including detailed electrical characteristics, timing diagrams, and compatible package options (SOIC/PDIP). It is engineered with high noise immunity and low power consumption, making it ideal for diverse demanding fields such as industrial electronics, medical devices, instrumentation, and general computing systems.
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查询MM74C74供应商
74C 74 D al D -Typ e F lip -F lo
October 1987 Revised January 1999
MM74C74 Dual D-Type Flip-Flop
High noise immunity: 0.45 VCC (typ.)
General Description
Low power: 50 n W (typ.)
The MM74C74 dual D-type flip-flop is a monolithic comple-
mentary MOS (CMOS) integrated circuit constructed with Medium speed operation: 10 MHz (typ.) with 10V N- and P-channel enhancement transistors. Each flip-flop supply
has independent data, preset, clear and clock inputs and Q and Q outputs. The logic level present at the data input is Applications transferred to the output during the positive going transition
Automotive
of the clock pulse. Preset or clear is independent of the
clock and accomplished by a low level at the preset or clear Data terminals
input. Instrumentation
Medical electronics
Features
Alarm system
Supply voltage range: 3V to 15V Industrial electronics
Tenth power TTL compatible: Drive 2 LPT2L loads Remote metering Computers
Ordering Code: Order Number Package Number Package Description MM74C74M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow MM74C74N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram Truth Table Pin Assignments for DIP and SOIC
Preset Clear Qn Q n
Qn (Note 1) Qn (Note 1)
Note 1: No change in output from previous state.
Note: A logic “0” on clear sets Q to logic “0”. A logic “0” on preset sets Q to logic “1”.
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© 1999 Fairchild Semiconductor Corporation DS005885.prf www.fairchildsemi.com
Page Summary Contents For Fairchild MM74C74 Data Handbook
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 7 |
| File Size | 68.03 KB |
| Published | July 07, 2026 |
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Frequently Asked Questions
What is the maximum operating frequency for this flip-flop?
When supplied with a 5V Vcc, the maximum clock frequency is 3.5 MHz; using a 10V Vcc increases it to 8.0 MHz.
How do I use the preset and clear inputs?
A logic “0” on the clear input sets Q to logic “0”, while a logic “0” on the preset input sets Q to logic “1” independently of clocking.
Are there any restrictions regarding its use in life-support devices?
Fairchild warns that these products are not authorized for use as critical components in life support devices or systems without express written approval.