SN54LV74, SN74LV74

DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS

SCLS189C – FEBRUARY 1993 – REVISED APRIL 1996

4

POST OFFICE BOX 655303

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

V

†

SN54LV74

SN74LV74

UNIT

PARAMETER

TEST CONDITIONS

VCC†

MIN

TYP

MAX

MIN

TYP

MAX

UNIT

IOH = –100 µA

MIN to MAX

VCC – 0.2

VCC – 0.2

VOH

IOH = –6 mA

3 V

2.4

2.4

V

IOH = –12 mA

4.5 V

3.6

3.6

IOL = 100 µA

MIN to MAX

0.2

0.2

VOL

IOL = 6 mA

3 V

0.4

0.4

V

IOL = 12 mA

4.5 V

0.55

0.55

II

VI =VCC or GND

3.6 V

±1

±1

µA

II

VI = VCC or GND

5.5 V

±1

±1

µA

ICC

VI =VCC or GND

IO =0

3.6 V

20

20

µA

ICC

VI = VCC or GND

IO = 0

5.5 V

20

20

µA

nICC

One input at

VCC – 0.6 V

Other inputs at

VCC or GND

3 V to 3.6 V

500

500

µA

Ci

VI =VCC or GND

3.3 V

2.5

2.5

pF

Ci

VI = VCC or GND

5 V

3

3

pF

† For conditions shown as MIN or MAX, use the appropriate values under recommended operating conditions.

timing requirements over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

SN54LV74

VCC = 5 V

± 0.5 V

VCC = 3.3 V

± 0.3 V

VCC = 2.7 V

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

fclock

Clock frequency

0

70

0

60

0

50

ns

t

Pulse duration LE high

PRE or CLR low

15

20

25

ns

tw

Pulse duration, LE high

CLK high or low

15

20

25

ns

t

Setup time data before CLK

↑

Data

6

8

12

ns

tsu

Setup time, data before CLK

↑

PRE or CLR inactive

5

6

8

ns

th

Hold time, data after CLK

↑

3

3

3

ns

timing requirements over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

SN74LV74

VCC = 5 V

± 0.5 V

VCC = 3.3 V

± 0.3 V

VCC = 2.7 V

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

fclock

Clock frequency

0

70

0

60

0

50

ns

t

Pulse duration LE high

PRE or CLR low

15

20

25

ns

tw

Pulse duration, LE high

CLK high or low

15

20

25

ns

t

Setup time data before CLK

↑

Data

6

8

12

ns

tsu

Setup time, data before CLK

↑

PRE or CLR inactive

5

6

8

ns

th

Hold time, data after CLK

↑

3

3

3

ns

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.