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CD54AC74 Datasheet(PDF) 3 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
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
TA = 25°C
–55
°C to
125
°C
–40
°C to
85
°C
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
VCC
Supply voltage
1.5
5.5
1.5
5.5
1.5
5.5
V
VCC = 1.5 V
1.2
1.2
1.2
VIH
High-level input voltage
VCC = 3 V
2.1
2.1
2.1
V
VCC = 5.5 V
3.85
3.85
3.85
VCC = 1.5 V
0.3
0.3
0.3
VIL
Low-level input voltage
VCC = 3 V
0.9
0.9
0.9
V
VCC = 5.5 V
1.65
1.65
1.65
VI
Input voltage
0
VCC
0
VCC
0
VCC
V
VO
Output voltage
0
VCC
0
VCC
0
VCC
V
IOH
High-level output current
VCC = 4.5 V to 5.5 V
–24
–24
–24
mA
IOL
Low-level output current
VCC = 4.5 V to 5.5 V
24
24
24
mA
∆t/∆v
Input transition rise or fall rate
VCC = 1.5 V to 3 V
50
50
50
ns/V
∆t/∆v
Input transition rise or fall rate
VCC = 3.6 V to 5.5 V
20
20
20
ns/V
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
–55
°C to
125
°C
–40
°C to
85
°C
UNIT
CC
MIN
MAX
MIN
MAX
MIN
MAX
1.5 V
1.4
1.4
1.4
IOH = –50 µA
3 V
2.9
2.9
2.9
4.5 V
4.4
4.4
4.4
VOH
VI = VIH or VIL
IOH = –4 mA
3 V
2.58
2.4
2.48
V
IOH = –24 mA
4.5 V
3.94
3.7
3.8
IOH = –50 mA†
5.5 V
3.85
IOH = –75 mA†
5.5 V
3.85
1.5 V
0.1
0.1
0.1
IOL = 50 µA
3 V
0.1
0.1
0.1
4.5 V
0.1
0.1
0.1
VOL
VI = VIH or VIL
IOL = 12 mA
3 V
0.36
0.5
0.44
V
IOL = 24 mA
4.5 V
0.36
0.5
0.44
IOL = 50 mA†
5.5 V
1.65
IOL = 75 mA†
5.5 V
1.65
II
VI = VCC or GND
5.5 V
±0.1
±1
±1
µA
ICC
VI = VCC or GND,
IO = 0
5.5 V
4
80
40
µA
Ci
10
10
10
pF
† Test one output at a time, not exceeding 1-second duration. Measurement is made by forcing indicated current and measuring voltage to minimize
power dissipation. Test verifies a minimum 50-
Ω transmission-line drive capability at 85°C and 75-Ω transmission-line drive capability at 125°C.




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