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CD54AC74 Datasheet(PDF) 4 Page - Texas Instruments

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Part No. CD54AC74
Description  DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR AND PRESET
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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CD54AC74, CD74AC74
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLEAR AND PRESET
SCHS231D – SEPTEMBER 1998 – REVISED DECEMBER 2002
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range, VCC = 1.5 V (unless
otherwise noted)
–55
°C to
125
°C
–40
°C to
85
°C
UNIT
MIN
MAX
MIN
MAX
fclock
Clock frequency
9
10
MHz
t
Pulse duration
PRE or CLR low
50
44
ns
tw
Pulse duration
CLK
56
49
ns
t
Setup time
Data
44
39
ns
tsu
Setup time
PRE or CLR inactive
ns
th
Hold time
Data after CLK
0
0
ns
trec
Recovery time, before CLK
CLR
↑ or PRE↑
34
30
ns
timing requirements over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V
(unless otherwise noted) (see Figure 1)
–55
°C to
125
°C
–40
°C to
85
°C
UNIT
MIN
MAX
MIN
MAX
fclock
Clock frequency
79
90
MHz
t
Pulse duration
PRE or CLR low
5.6
4.9
ns
tw
Pulse duration
CLK
6.3
5.5
ns
t
Setup time
Data
4.9
4.3
ns
tsu
Setup time
PRE or CLR inactive
ns
th
Hold time
Data after CLK
0
0
ns
trec
Recovery time, before CLK
CLR
↑ or PRE↑
4.7
4.1
ns
timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
–55
°C to
125
°C
–40
°C to
85
°C
UNIT
MIN
MAX
MIN
MAX
fclock
Clock frequency
110
125
MHz
t
Pulse duration
PRE or CLR low
4
3.5
ns
tw
Pulse duration
CLK
4.5
3.9
ns
t
Setup time
Data
3.5
3.1
ns
tsu
Setup time
PRE or CLR inactive
ns
th
Hold time
Data after CLK
0
0
ns
trec
Recovery time, before CLK
CLR
↑ or PRE↑
2.7
2.4
ns




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