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74ACT11874 Datasheet, PDF (2/7 Pages) Texas Instruments – DUAL 4-BIT D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
74ACT11874
DUAL 4ĆBIT DĆTYPE EDGEĆTRIGGERED FLIPĆFLOPS
WITH 3ĆSTATE OUTPUTS
SCAS212 − D3447, MARCH 1990 − REVISED APRIL 1993
logic symbol†
logic diagram (each 4-bits) (positive logic)
28
1OE
1
1CLK
27
1CLR
23
1D1
22
1D2
21
1D3
20
1D4
EN
C1
R
1D 1
2
1Q1
3
1Q2
4
1Q3
5
1Q4
OE
CLK
CLR
D1
R
Q1
C1
1D
15
2OE
14
2CLK
16
2CLR
20
2D1
19
2D2
18
2D3
17
2D4
EN
C1
R
1D 1
D2
10
2Q1
11
2Q2
12
2Q3
13
2Q4
D3
† This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
D4
R
Q2
C1
1D
R
Q3
C1
1D
R
Q4
C1
1D
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V
Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V
Input clamp current, IIK (VI < 0 or VI > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 20 mA
Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA
Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 50 mA
Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 200 mA
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . − 55°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2−2
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