SL74HC640 Ver la hoja de datos (PDF) - System Logic Semiconductor
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SL74HC640 Datasheet PDF : 5 Pages
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SL74HC640
AC ELECTRICAL CHARACTERISTICS(CL=50pF,Input tr=tf=6.0 ns)
Symbol
Parameter
VCC
Guaranteed Limit
V 25 °C to ≤85°C ≤125°C Unit
-55°C
tPLH, tPHL Maximum Propagation Delay, A to B , B to A
(Figures 1 and 3)
2.0 75
95
110
ns
4.5 15
19
22
6.0 13
16
19
tPLZ, tPHZ Maximum Propagation Delay , Direction or Output 2.0 110
140
165
ns
Enable to A or B (Figures 2 and 4)
4.5 22
28
33
6.0 19
24
28
tPZL, tPZH Maximum Propagation Delay , Direction or Output 2.0 110
140
165
ns
Enable to A or B (Figures 2 and 4)
4.5 22
28
33
6.0 19
24
28
tTLH, tTHL Maximum Output Transition Time, Any Output
2.0 60
75
90
ns
(Figures 1 and 3)
4.5 12
15
18
6.0 10
13
15
CIN Maximum Input Capacitance (Pin 1 or Pin 19)
COUT Maximum Three-State I/O Capacitance
(Output in High-Impedance State)
-
10
10
10
pF
-
15
15
15
pF
Power Dissipation Capacitance (Per Transceiver
Channel)
CPD Used to determine the no-load dynamic power
consumption:
PD=CPDVCC2f+ICCVCC
Typical @25°C,VCC=5.0 V
40
pF
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
SLS
System Logic
Semiconductor
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