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SN74AHC74N Datasheet(PDF) 4 Page - Texas Instruments

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Part No. SN74AHC74N
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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SN54AHC74, SN74AHC74
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS
WITH CLEAR AND PRESET
SCLS255J – DECEMBER 1995 – REVISED JULY 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54AHC74
SN74AHC74
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
1.9
2
1.9
1.9
IOH = –50 mA
3 V
2.9
3
2.9
2.9
VOH
4.5 V
4.4
4.5
4.4
4.4
V
IOH = –4 mA
3 V
2.58
2.48
2.48
IOH = –8 mA
4.5 V
3.94
3.8
3.8
2 V
0.1
0.1
0.1
IOL = 50 mA
3 V
0.1
0.1
0.1
VOL
4.5 V
0.1
0.1
0.1
V
IOL = 4 mA
3 V
0.36
0.5
0.44
IOL = 8 mA
4.5 V
0.36
0.5
0.44
II
VI = 5.5 V or GND
0 V to 5.5 V
±0.1
±1*
±1
mA
ICC
VI = VCC or GND,
IO = 0
5.5 V
2
20
20
mA
Ci
VI = VCC or GND
5 V
2
10
10
pF
* On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
timing requirements over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V
(unless otherwise noted) (see Figure 1)
TA = 25°C
SN54AHC74
SN74AHC74
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
t
Pulse duration
PRE or CLR low
6
7
7
ns
tw
Pulse duration
CLK
6
7
7
ns
t
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)
TA = 25°C
SN54AHC74
SN74AHC74
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
t
Pulse duration
PRE or CLR low
5
5
5
ns
tw
Pulse duration
CLK
5
5
5
ns
t
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




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