MC74LCX574(2005) 查看數據表（PDF） - ON Semiconductor
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MC74LCX574 Datasheet PDF : 8 Pages
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MC74LCX574
DYNAMIC SWITCHING CHARACTERISTICS
Symbol
Characteristic
Condition
TA = +25°C
Min Typ Max Unit
VOLP
Dynamic LOW Peak Voltage (Note 4) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
0.8
V
VOLV
Dynamic LOW Valley Voltage (Note 4) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
0.8
V
4. Number of outputs defined as “n”. Measured with “n−1” outputs switching from HIGH−to−LOW or LOW−to−HIGH. The remaining output is
measured in the LOW state.
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
CIN
COUT
CPD
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
Condition
VCC = 3.3 V, VI = 0 V or VCC
VCC = 3.3 V, VI = 0 V or VCC
10 MHz, VCC = 3.3 V, VI = 0 V or VCC
Typical
Unit
7
pF
8
pF
25
pF
Dn
ts
CP
On
th
1.5 V
fmax
tPLH, tPHL
1.5 V
2.7 V
1.5 V
0V
2.7 V
0V
VOH
VOL
WAVEFORM 1 − PROPAGATION DELAYS, SETUP AND HOLD TIMES
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
OE
tPZH
On
1.5 V
tPHZ
1.5 V
1.5 V
tPZL
On
tPLZ
1.5 V
2.7 V
0V
VCC
VOH − 0.3 V
≈0V
≈ 3.0 V
VOL + 0.3 V
GND
WAVEFORM 2 − OUTPUT ENABLE AND DISABLE TIMES
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
CP
1.5 V
tw
2.7 V
1.5 V
0V
tw
CP
1.5 V
2.7 V
1.5 V
0V
WAVEFORM 3 − PULSE WIDTH
tR = tF = 2.5 ns (or fast as required) from 10% to 90%;
Output requirements: VOL ≤ 0.8 V, VOH ≥ 2.0 V
Figure 3. AC Waveforms
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