MM54C74 MM74C74 Dual D Flip-Flop
February 1988
MM54C74 MM74C74 Dual D Flip-Flop
General Description
The MM54C74 MM74C7...
MM54C74 MM74C74 Dual D Flip-Flop
February 1988
MM54C74 MM74C74 Dual D Flip-Flop
General Description
The MM54C74 MM74C74 dual D flip-flop is a monolithic complementary MOS (CMOS) integrated circuit constructed with N- and P-channel enhancement
transistors Each flipflop 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 or clear is independent of the clock and accomplished by a low level at the preset or clear input
Y Y
Low power Medium speed operation
50 nW (typ ) 10 MHz (typ ) with 10V supply
Applications
Y Y Y Y Y
Features
Y Y Y
Supply voltage range Tenth power TTL compatible High noise immunity
3V to 15V Drive 2 LPT2L loads 0 45 VCC (typ )
Y Y Y
Automotive Data terminals Instrumentation Medical electronics Alarm system Industrial electronics Remote metering Computers
Logic Diagram
TL F 5885 – 1
Truth Table
Preset 0 0 1 1 Clear 0 1 0 1 Qn 0 1 0 Qn Qn 0 0 1 Qn
Connection Diagram
Dual-In-Line Package
No change in output from previous state
Order Number MM54C74 or MM74C74
Top View
Note A logic ‘‘0’’ on clear sets Q to logic ‘‘0’’ A logic ‘‘0’’ on preset sets Q to logic ‘‘1’’
C1995 National Semiconductor Corporation TL F 5885
TL F 5885 – 2
RRD-B30M105 Printed in U S A
Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office ...