AC Electrical Characteristics
Symbol
Parameter
tPHL, tPLH Propagation Delay
Bus to Bus
T A = −40°C to +85°C, RL = 500Ω
CL = 50 pF
CL = 30 pF
V CC = 3.3V ± 0.3V
V CC = 2.7V
V CC = 2.5V ± 0.2V V CC = 1.8V ± 0.15V
Min
Max
Min
Max
Min
Max
Min
Max
1.1
3.5
1.3
4.4
0.8
3.9
1.0
7.8
Units
ns
Capacitance
Symbol
Parameter
Conditions
CIN
COUT
CPD
Input Capacitance
Output Capacitance
Power Dissipation Capacitance
Outputs Enabled
VI = 0V or VCC
VI = 0V or VCC
f = 10 MHz, CL = 50 pF
TA = +25°C
VCC
Typical
3.3
6
3.3
7
3.3
20
2.5
20
Units
pF
pF
pF
AC Loading and Waveforms
TABLE 1. Values for Figure 1
TEST
tPLH,tPHL
SWITCH
Open
FIGURE 1. AC Test Circuit
TABLE 2. Variable Matrix
(Input Characteristics: f = 1MHz; tr = tf = 2ns; Z0 = 50Ω
Symbol
Vmi
Vmo
3.3V ± 0.3V
1.5V
1.5V
2.7V
1.5V
1.5V
VCC
2.5V ± 0.2V
VCC/2
VCC/2
1.8V ± 0.15V
VCC/2
VCC/2
FIGURE 2. Waveform for Inverting and Non-inverting Functions
3
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