SN54BCT574, SN74BCT574

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCBS074B – SEPTEMBER 1991 – REVISED NOVEMBER 1993

2–2

POST OFFICE BOX 655303

logic diagram (positive logic)

OE

1D

2

1D

3

2D

4

3D

5

4D

6

5D

11

CLK

1Q

19

2Q

18

3Q

17

4Q

16

5Q

15

6Q

14

7Q

13

8Q

12

7

6D

8

7D

9

8D

EN

1

OE

CLK

1D

1Q

1

11

2

19

To Seven Other Channels

1D

C1

C1

† This symbol is in accordance with ANSI/IEEE Std 91-1984

and IEC Publication 617-12.

– 0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 0.5 V to 5.5 V

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 30 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

96 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74BCT574

128 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range:

SN54BCT574

– 55

°C to 125°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74BCT574

0

°C to 70°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range

– 65

°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 negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.

recommended operating conditions

SN54BCT574

SN74BCT574

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.5

5

5.5

4.5

5

5.5

V

VIH

High-level input voltage

2

2

V

VIL

Low-level input voltage

0.8

0.8

V

IIK

Input clamp current

–18

–18

mA

IOH

High-level output current

–12

–15

mA

IOL

Low-level output current

48

64

mA

TA

Operating free-air temperature

–55

125

0

70

°C