SN54LV574A, SN74LV574A

OCTAL EDGETRIGGERED DTYPE FLIPFLOPS

WITH 3STATE OUTPUTS

SCLS412I − APRIL 1998 − REVISED APRIL 2005

5

POST OFFICE BOX 655303

(unless otherwise noted) (see Figure 1)

PARAMETER

TA = 25°C

SN54LV574A

SN74LV574A

UNIT

PARAMETER

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

tw

Pulse duration

CLK high or low

7

7

7

ns

tsu

Setup time

High or low before CLK

↑

5.5

5.5

5.5

ns

th

Hold time

Data after CLK

↑

2

2

2

ns

(unless otherwise noted) (see Figure 1)

PARAMETER

TA = 25°C

SN54LV574A

SN74LV574A

UNIT

PARAMETER

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

tw

Pulse duration

CLK high or low

5

5

5

ns

tsu

Setup time

High or low before CLK

↑

3.5

3.5

3.5

ns

th

Hold time

Data after CLK

↑

1.5

1.5

1.5

ns

(unless otherwise noted) (see Figure 1)

PARAMETER

TA = 25°C

SN54LV574A

SN74LV574A

UNIT

PARAMETER

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

tw

Pulse duration

CLK high or low

5

5

5

ns

tsu

Setup time

High or low before CLK

↑

3.5

3.5

3.5

ns

th

Hold time

Data after CLK

↑

1.5

1.5

1.5

ns

switching characteristics over recommended operating free-air temperature range,

PARAMETER

FROM

TO

LOAD

TA = 25°C

SN54LV574A

SN74LV574A

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

LOAD

CAPACITANCE

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

fmax

CL = 15 pF

60*

100*

50*

50

MHz

fmax

CL = 50 pF

50

85

40

40

MHz

tpd

CLK

Q

9.6*

16.6*

1*

20*

1

20

ten

OE

Q

CL = 15 pF

9.2*

16.1*

1*

19*

1

19

ns

tdis

OE

Q

CL = 15 pF

6.5*

12.8*

1*

15*

1

15

ns

tpd

CLK

Q

11.6

19.6

1

23

1

23

ten

OE

Q

CL = 50 pF

10.9

19

1

22

1

22

ns

tdis

OE

Q

CL = 50 pF

8.4

17.5

1

20

1

20

ns

tsk(o)

2

2

* On products compliant to MIL-PRF-38535, this parameter is not production tested.

PRODUCT PREVIEW information concerns products in the formative or

design phase of development. Characteristic data and other

specifications are design goals. Texas Instruments reserves the right to

change or discontinue these products without notice.