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CD54HC688F3A 数据表(PDF) 6 Page - Texas Instruments

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部件名 CD54HC688F3A
功能描述  High-Speed CMOS Logic 8-Bit Magnitude Comparator
Download  15 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

CD54HC688F3A 数据表(HTML) 6 Page - Texas Instruments

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6
E to Output
tPLH,
tPHL
CL = 50pF
2
-
-
120
-
150
-
180
ns
4.5
-
-
24
-
30
-
36
ns
CL =15pF
5
-
9
-
-
-
-
-
ns
CL = 50pF
6
-
-
20
-
26
-
30
ns
Output Transition Time
(Figure 1)
tTLH,tTHL CL = 50pF
2
-
-
75
-
95
-
110
ns
4.5
-
-
15
-
19
-
22
ns
6
-
-
13
-
16
-
19
ns
Input Capacitance
CIN
CL = 50pF
-
-
-
10
-
10
-
10
pF
Power Dissipation Capacitance
(Notes 3, 4)
CPD
CL =15pF
5
-
22
-
-
-
-
-
pF
HCT TYPES
Propagation Delay (Figure 1)
tPLH,
tPHL
CL = 50pF
4.5
-
-
34
-
42
-
51
ns
An to Output
CL =15pF
5
-
14
-
-
-
-
-
ns
Bn to Output
tPLH,
tPHL
CL = 50pF
4.5
-
-
34
-
42
-
51
ns
CL =15pF
5
-
14
-
-
-
-
-
ns
E to Output
tPLH,
tPHL
CL = 50pF
4.5
-
-
24
-
30
-
36
ns
CL =15pF
5
-
9
-
-
-
-
-
ns
Output Transition Time
(Figure 1)
tTLH,tTHL CL = 50pF
4.5
-
-
15
-
19
-
22
ns
Input Capacitance
CIN
CL = 50pF
-
-
-
10
-
10
-
10
pF
Power Dissipation Capacitance
(Notes 3, 4)
CPD
CL =15pF
5
-
22
-
-
-
-
-
pF
NOTES:
3. CPD is used to determine the dynamic power consumption, per gate.
4. PD = VCC
2 f
i (CPD + CL) where fi = Input Frequency, CL = Output Load Capacitance, VCC = Supply Voltage.
Switching Specifications Input tr, tf = 6ns (Continued)
PARAMETER
SYMBOL
TEST
CONDITIONS
VCC
(V)
25oC
-40oC TO 85oC -55oC TO 125oC
UNITS
MIN
TYP
MAX
MIN
MAX
MIN
MAX
Test Circuit and Waveform
FIGURE 1. PROPAGATION DELAY AMD TRANSITION TIMES
tr = 6ns
OUTPUT Y
tf = 6ns
90%
VS
10%
VS
tTLH
ANY INPUT
A OR B
INPUT LEVEL
GND
tPLH
tPHL
tTHL
CD54HC688, CD74HC688, CD54HCT688, CD74HCT688


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