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KK74HC74A fiches techniques PDF

KODENSHI KOREA - Dual D Flip-Flop

Numéro de référence KK74HC74A
Description Dual D Flip-Flop
Fabricant KODENSHI KOREA 
Logo KODENSHI KOREA 





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KK74HC74A fiche technique
TECHNICAL DATA
Dual D Flip-Flop with Set and Reset
KK74HC74A
The KK74HC74A is identical in pinout to the LS/ALS74. The device inputs
are compatible with standard CMOS outputs; with pullup resistors, they are
compatible with LS/ALSTTL outputs.
This device consists of two D flip-flops with individual Set, Reset, and
Clock inputs. Information at a D-input is transferred to the corresponding Q
output on the next positive going edge of the clock input. Both Q and Q
outputs are available from each flip-flop. The Set and Reset inputs are
asynchronous.
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 µA
High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
KK74HC74AN Plastic
KK74HC74AD SOIC
TA = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 14 =VCC
PIN 7 = GND
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FUNCTION TABLE
Inputs
Outputs
Set Reset Clock Data Q Q
LH X XHL
HL X XLH
L L X X H* H*
HH
HHL
HH
LLH
H H L X No Change
H H H X No Change
HH
X No Change
*Both outputs will remain high as long as Set
and Reset are low, but the output states are
unpredictable if Set and Reset go high
simultaneously.
X = don’t care
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