SN54LV163A, SN74LV163A

4BIT SYNCHRONOUS BINARY COUNTERS

SCLS405F − APRIL 1998 − REVISED APRIL 2005

9

POST OFFICE BOX 655303

switching

characteristics

over

recommended

operating

free-air

temperature

range,

PARAMETER

FROM

TO

LOAD

TA = 25°C

SN54LV163A

SN74LV163A

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

LOAD

CAPACITANCE

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

fmax

CL = 15 pF

50*

115*

40*

40

MHz

fmax

CL = 50 pF

30

90

25

25

MHz

Q

8.5*

16.2*

1*

19.5*

1

19.5

tpd

CLK

RCO

(count mode)

CL = 15 pF

9.1*

17*

1*

20.5*

1

20.5

ns

tpd

CLK

RCO

(preset mode)

CL = 15 pF

12.1*

20.6*

1*

24.5*

1

24.5

ns

ENT

RCO

8.7*

15.7*

1*

19*

1

19

Q

11

19.2

1

22.5

1

22.5

tpd

CLK

RCO

(count mode)

CL = 50 pF

11.9

20

1

23.5

1

23.5

ns

tpd

CLK

RCO

(preset mode)

CL = 50 pF

14.6

23.6

1

27.5

1

27.5

ns

ENT

RCO

11.7

18.7

1

22

1

22

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

switching

characteristics

over

recommended

operating

free-air

temperature

range,

PARAMETER

FROM

TO

LOAD

TA = 25°C

SN54LV163A

SN74LV163A

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

LOAD

CAPACITANCE

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

fmax

CL = 15 pF

80*

160*

70*

70

MHz

fmax

CL = 50 pF

55

125

50

50

MHz

Q

6.2*

12.8*

1*

15*

1

15

tpd

CLK

RCO

(count mode)

CL = 15 pF

6.8*

13.6*

1*

16*

1

16

ns

tpd

CLK

RCO

(preset mode)

CL = 15 pF

8.8*

17.2*

1*

20*

1

20

ns

ENT

RCO

6.5*

12.3*

1*

14.5*

1

14.5

Q

8

16.3

1

18.5

1

18.5

tpd

CLK

RCO

(count mode)

CL = 50 pF

8.8

17.1

1

19.5

1

19.5

ns

tpd

CLK

RCO

(preset mode)

CL = 50 pF

10.7

20.7

1

23.5

1

23.5

ns

ENT

RCO

8.2

15.8

1

18

1

18

* 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.