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PDF KK74HCT573A Data sheet ( Hoja de datos )
| Número de pieza | KK74HCT573A | |
| Descripción | Octal 3-State Noninverting Transparent Latch | |
| Fabricantes | KODENSHI KOREA | |
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TECHNICAL DATA
Octal 3-State Noninverting
Transparent Latch
High-Performance Silicon-Gate CMOS
KK74HCT573A
The KK74HCT573A is identical in pinout to the LS/ALS573. This
device may be used as a level converter for interfacing TTL or NMOS
outputs to High-Speed CMOS inputs.
These latches appear transparent to data (i.e., the outputs change
asynchronously) when Latch Enable is high. When Latch Enable goes
low, data meeting the setup and hold time becomes latched.
The Output Enable input does not affect the state of the latches, but
when Output Enable is high, all device outputs are forced to the high-
impedance state. Thus, data may be latched even when the outputs are not
enabled.
• TTL/NMOS-Compatible Input Levels
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1.0 µA
ORDERING INFORMATION
KK74HCT573AN Plastic
KK74HCT573ADW SOIC
TA = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 20=VCC
PIN 10 = GND
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FUNCTION TABLE
Inputs
Output
Output Latch
Enable Enable
D
Q
L HH
H
L HL
L
L L X no change
H XX
Z
X = don’t care
Z = high impedance
1
1 page  
KK74HCT573A
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
Figure 3. Switching Waveforms
Figure 4. Switching Waveforms
EXPANDED LOGIC DIAGRAM
Figure 5. Test Circuit
Figure 6. Test Circuit
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet KK74HCT573A.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
| KK74HCT573A | Octal 3-State Noninverting Transparent Latch | KODENSHI KOREA |
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