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SN74HCT273DWG4 Datasheet(PDF) 4 Page - Texas Instruments

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No. de pieza SN74HCT273DWG4
Descripción Electrónicos   OCTAL D-TYPE FLIP-FLOPS WITH CLEAR
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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SN74HCT273DWG4 Datasheet(HTML) 4 Page - Texas Instruments

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SN54HCT273, SN74HCT273
OCTAL DTYPE FLIPFLOPS
WITH CLEAR
SCLS068E − NOVEMBER 1988 − REVISED AUGUST 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
VCC
TA = 25°C
SN54HCT273
SN74HCT273
UNIT
VCC
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
fclock
Clock frequency
4.5 V
25
16
20
MHz
fclock
Clock frequency
5.5 V
28
19
23
MHz
CLK high or low
4.5 V
20
30
25
tw
Pulse duration
CLK high or low
5.5 V
18
25
22
ns
tw
Pulse duration
CLR low
4.5 V
16
24
20
ns
CLR low
5.5 V
14
20
17
Data
4.5 V
20
30
25
tsu
Setup time before CLK
Data
5.5 V
17
25
21
ns
tsu
Setup time before CLK
CLR inactive
4.5 V
20
30
25
ns
CLR inactive
5.5 V
17
25
21
th
Hold time data after CLK
4.5 V
0
0
0
ns
th
Hold time data after CLK
5.5 V
0
0
0
ns
switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V,
CL = 50 pF (unless otherwise noted) (see Figure 1)
FROM
TO
SN54HCT273
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
TA = 25°C
MIN
MAX
UNIT
PARAMETER
(INPUT)
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
UNIT
fmax
4.5 V
25
31
16
MHz
fmax
5.5 V
28
37
19
MHz
tpd
CLR
Any
4.5 V
15
34
50
ns
tpd
CLR
Any
5.5 V
12
29
42
ns
tPHL
CLR
Any
4.5 V
17
15
50
ns
tPHL
CLR
Any
5.5 V
15
34
42
ns
tt
Any
4.5 V
8
18
22
ns
tt
Any
5.5 V
7
19
21
ns
switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V,
CL = 50 pF (unless otherwise noted) (see Figure 1)
FROM
TO
SN74HCT273
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
TA = 25°C
MIN
MAX
UNIT
PARAMETER
(INPUT)
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
UNIT
fmax
4.5 V
25
31
20
MHz
fmax
5.5 V
28
37
23
MHz
tpd
CLR
Any
4.5 V
15
34
42
ns
tpd
CLR
Any
5.5 V
12
29
36
ns
tPHL
CLR
Any
4.5 V
17
34
42
ns
tPHL
CLR
Any
5.5 V
15
29
36
ns
tt
Any
4.5 V
8
15
19
ns
tt
Any
5.5 V
7
14
17
ns
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.


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