MC74VHC259 데이터 시트보기 (PDF) - ON Semiconductor
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MC74VHC259 Datasheet PDF : 8 Pages
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MC74VHC259
TIMING REQUIREMENTS (Input tr = tf = 3.0ns)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Symbol
Parameter
tw
Minimum Pulse Width, Reset or Enable
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ (Figure 10)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tsu
Minimum Setup Time, Address or Data to Enable
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ (Figure 10)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ th
Minimum Hold Time, Enable to Address or Data
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ (Figure 8 or 9)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tr, tf
Maximum Input, Rise and Fall Times
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ (Figure 6)
Test Conditions
VCC = 3.3 ± 0.3V
VCC = 5.0 ± 0.5V
VCC = 3.3 ± 0.3V
VCC = 5.0 ± 0.5V
VCC = 3.3 ± 0.3V
VCC = 5.0 ± 0.5V
VCC = 3.3 ± 0.3V
VCC = 5.0 ± 0.5V
TA = 25°C
TA = ≤ 85°C TA = ≤ 125°C
Min Typ Max Min Max Min Max Unit
5.0
5.5
5.5
ns
5.0
5.5
5.5
4.5
4.5
4.5
ns
3.0
3.0
3.0
2.0
2.0
2.0
ns
2.0
2.0
2.0
400
300
300 ns
200
100
100
VCC
tr
DATA IN
50%
tPLH
50%
OUTPUT Q
DATA IN
tf
VCC ADDRESS
SELECT
GND
tPHL
OUTPUT Q
50%
50%
tPHL
50%
GND
VCC
GND
VCC
GND
tPHL
Figure 6. Switching Waveform
Figure 7. Switching Waveform
DATA IN
tw
ENABLE
50%
tPHL
OUTPUT Q
VCC
VCC
GND
DATA IN
GND
tw
VCC
RESET
tw
VCC
50%
50%
50%
GND
GND
tPHL
tPHL
OUTPUT Q
50%
Figure 8. Switching Waveform
Figure 9. Switching Waveform
DATA IN
OR
50%
ADDRESS
SELECT
tsu
th(H)
tsu
ENABLE
50%
Figure 10. Switching Waveform
VCC
GND
th(H)
VCC
GND
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 11. Test Circuit
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