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CD54HC297 Datasheet(PDF) 5 Page - Texas Instruments

Part # CD54HC297
Description  High-Speed CMOS Logic Digital Phase-Locked Loop
PDF  16 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

CD54HC297 Datasheet(HTML) 5 Page - Texas Instruments

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5
Prerequisite For Switching Function
PARAMETER
SYMBOL
VCC (V)
25oC
-40oC TO 85oC
-55oC TO 125oC
UNITS
MIN
MAX
MIN
MAX
MIN
MAX
HC TYPES
Maximum Clock Frequency
KCP
fMAX
2
6
-5-4-
MHz
4.5
30
-
24
-
20
-
MHz
6
35
-
28
-
24
-
MHz
Maximum Clock Frequency
I/DCP
fMAX
2
4
-3-2-
MHz
4.5
20
-
16
-
13
-
MHz
6
24
-
19
-
15
-
MHz
Clock Pulse Width
KCP
tw
2
80
-
100
-
120
-
ns
4.5
16
-
20
-
24
-
ns
6
14-17
-20-
ns
Clock Pulse Width
I/DCP
tW
2
125
-
155
-
190
-
ns
4.5
25
-
31
-
38
-
ns
6
21-26
-32-
ns
Set-up Time
D/U, ENCTR to KCP
tSU
2
100
-
125
-
150
-
ns
4.5
20
-
25
-
30
-
ns
6
17-21
-26-
ns
Hold Time
D/U, ENCTR to KCP
tH
2
0
-0-0-
ns
4.5
0-0-0-
ns
6
0
-0-0-
ns
HCT TYPES
Maximum Clock Frequency
KCP
fMAX
4.5
30
-
24
-
20
-
MHz
Maximum Clock Frequency
I/DCP
fMAX
4.5
20
-
16
-
13
-
MHz
Clock Pulse Width
KCP
tw
4.5
16
-
20
-
24
-
ns
Clock Pulse Width
I/DCP
tw
4.5
25
-
31
-
38
-
ns
Set-up Time
D/U, ENCTR to KCP
tSU
4.5
20
-
25
-
30
-
ns
Hold Time
D/U, ENCTR to KCP
tH
4.5
0-0-0-
ns
Switching Specifications Input tr, tf = 6ns
PARAMETER
SYMBOL
TEST
CONDITIONS
VCC (V)
25oC
-40oC TO 85oC
-55oC TO 125oC
UNITS
TYP
MAX
MAX
MAX
HC TYPES
Propagation Delay,
I/DCP to I/DOUT
tPLH, tPHL
CL = 50pF
2
-
175
220
265
ns
4.5
-
35
44
53
ns
6
-
30
34
43
ns
CD54HC297, CD74HC297, CD74HCT297
CD54HC297, CD74HC297, CD74HCT297



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