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SN74ALS874B Datasheet(PDF) 7 Page - Texas Instruments

Part No. SN74ALS874B
Description  DUAL 4-BIT D-TYPE EDGE-TRIGGERED FLIP-FLOPS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54ALS874B, SN74ALS874B, SN74ALS876A
SN74AS874, SN74AS876
DUAL 4-BIT D-TYPE EDGE-TRIGGERED FLIP-FLOPS
SDAS061C – APRIL 1982 – REVISED JANUARY 1995
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
,
R2 = 500
,
TA = MIN to MAX†
UNIT
SN74AS874
MIN
MAX
fmax
125
MHz
tPLH
CLK
An Q
3
8.5
ns
tPHL
CLK
Any Q
4
10.5
ns
tPHL
CLR
Any Q
4
9.5
ns
tPZH
OE
An Q
2
7
ns
tPZL
OE
Any Q
3
10.5
ns
tPHZ
OE
Any Q
2
6
ns
tPLZ
OE
Any Q
2
7.5
ns
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
,
R2 = 500
,
TA = MIN to MAX†
UNIT
SN74AS876
MIN
MAX
fmax
80
MHz
tPLH
CLK
An Q
3
8.5
ns
tPHL
CLK
Any Q
4
10.5
ns
tPHL
PRE
Any Q
4
9.5
ns
tPZH
OE
An Q
2
7
ns
tPZL
OE
Any Q
3
11
ns
tPHZ
OE
Any Q
2
7
ns
tPLZ
OE
Any Q
2
7
ns
† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.




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