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SN54LV74A Datasheet(PDF) 5 Page - Texas Instruments

Part No. SN54LV74A
Description  DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54LV74A Datasheet(HTML) 5 Page - Texas Instruments

 
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SN54LV74A, SN74LV74A
DUAL POSITIVEEDGETRIGGERED DTYPE FLIPFLOPS
SCLS381L − AUGUST 1997 − REVISED APRIL 2005
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range, VCC = 2.5 V ± 0.2 V
(unless otherwise noted) (see Figure 1)
PARAMETER
TA = 25°C
SN54LV74A
SN74LV74A
UNIT
PARAMETER
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
tw
Pulse duration
PRE or CLR low
8
9
9
ns
tw
Pulse duration
CLK
8
9
9
ns
tsu
Setup time before CLK
Data
8
9
9
ns
tsu
Setup time before CLK
PRE or CLR inactive
7
7
7
ns
th
Hold time, data after CLK
0.5
0.5
0.5
ns
timing requirements over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V
(unless otherwise noted) (see Figure 1)
PARAMETER
TA = 25°C
SN54LV74A
SN74LV74A
UNIT
PARAMETER
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
tw
Pulse duration
PRE or CLR low
6
7
7
ns
tw
Pulse duration
CLK
6
7
7
ns
tsu
Setup time before CLK
Data
6
7
7
ns
tsu
Setup time before CLK
PRE or CLR inactive
5
5
5
ns
th
Hold time, data after CLK
0.5
0.5
0.5
ns
timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
PARAMETER
TA = 25°C
SN54LV74A
SN74LV74A
UNIT
PARAMETER
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
tw
Pulse duration
PRE or CLR low
5
5
5
ns
tw
Pulse duration
CLK
5
5
5
ns
tsu
Setup time before CLK
Data
5
5
5
ns
tsu
Setup time before CLK
PRE or CLR inactive
3
3
3
ns
th
Hold time, data after CLK
0.5
0.5
0.5
ns
switching
characteristics
over
recommended
operating
free-air
temperature
range,
VCC = 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
TA = 25°C
SN54LV74A
SN74LV74A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
fmax
CL = 15 pF
50*
100*
40*
40
MHz
fmax
CL = 50 pF
30
70
25
25
MHz
tpd
PRE or CLR
Q or Q
CL = 15 pF
9.8*
14.8*
1*
17*
1
17
ns
tpd
CLK
Q or Q
CL = 15 pF
11.1*
16.4*
1*
19*
1
19
ns
tpd
PRE or CLR
Q or Q
CL = 50 pF
13
17.4
1
20
1
20
ns
tpd
CLK
Q or Q
CL = 50 pF
14.2
20
1
23
1
23
ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
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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