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PDF IN74HC74A Data sheet ( Hoja de datos )
| Número de pieza | IN74HC74A | |
| Descripción | Dual D-Type Flip-Flop | |
| Fabricantes | IK Semiconductor | |
| Logotipo |  |
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TECHNICAL DATA
Dual D Flip-Flop with Set and Reset
IN74HC74A
The IN74HC74A 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
IN74HC74AN Plastic
IN74HC74AD SOIC
TA = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 14 =VCC
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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
1
1 page  
IN74HC74A
Figure 1. Switching Waveform
Figure 2. Switching Waveform
Figure 3. Switching Waveform
Figure 4.Test Circuit
EXPANDED LOGIC DIAGRAM
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet IN74HC74A.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
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