74F74

Manufacturer Part Number74F74
Description74F74Dual D-Type Positive Edge-Triggered Flip-Flop
ManufacturerNational Semiconductor
74F74 datasheet
 


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54F 74F74
Dual D-Type Positive Edge-Triggered Flip-Flop
General Description
The ’F74 is a dual D-type flip-flop with Direct Clear and Set
inputs and complementary (Q Q) outputs Information at the
input is transferred to the outputs on the positive edge of
the clock pulse Clock triggering occurs at a voltage level of
the clock pulse and is not directly related to the transition
time of the positive-going pulse After the Clock Pulse input
threshold voltage has been passed the Data input is locked
out and information present will not be transferred to the
outputs until the next rising edge of the Clock Pulse input
Commercial
Military
74F74PC
54F74DM (Note 2)
74F74SC (Note 1)
74F74SJ (Note 1)
54F74FM (Note 2)
54F74LM (Note 2)
Note 1 Devices also available in 13 reel Use Suffix
Note 2 Military grade device with environmental and burn-in processing Use suffix
Logic Symbols
TL F 9469–3
TRI-STATE is a registered trademark of National Semiconductor Corporation
C 1995 National Semiconductor Corporation
TL F 9469
Asynchronous Inputs
LOW input to S
sets Q to HIGH level
D
LOW input to C
sets Q to LOW level
D
Clear and Set are independent of clock
Simultaneous LOW on C
D
makes both Q and Q HIGH
Features
Guaranteed 4000V minimum ESD protection
Y
Package
Package Description
Number
N14A
14-Lead (0 300 Wide) Molded Dual-In-Line
J14A
14-Lead Ceramic Dual-In-Line
M14A
14-Lead (0 150 Wide) Molded Small Outline JEDEC
M14D
14-Lead (0 300 Wide) Molded Small Outline EIAJ
W14B
14-Lead Cerpack
E20A
20-Lead Ceramic Leadless Chip Carrier Type C
SCX
e
DMQB FMQB and LMQB
e
TL F 9469 – 4
December 1994
and S
D
IEEE IEC
TL F 9469 – 6
RRD-B30M75 Printed in U S A

74F74 Summary of contents