SN54ALS169B, SN54AS169A, SN74ALS169B, SN74AS169A

SYNCHRONOUS 4BIT UP/DOWN BINARY COUNTERS

SDAS125B − MARCH 1984 − REVISED DECEMBER 1994

2−7

POST OFFICE BOX 655303

POST OFFICE BOX 1443

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

otherwise noted)

PARAMETER

TEST CONDITIONS

SN54AS169A

SN74AS169A

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

MIN

TYP†

MAX

UNIT

VIK

VCC = 4.5 V,

II = − 18 mA

− 1.2

− 1.2

V

VOH

VCC = 4.5 V to 5.5 V,

IOH = − 2 mA

VCC −2

VCC −2

V

VOL

VCC = 4.5 V,

IOL = 20 mA

0.25

0.5

0.25

0.5

V

II

LOAD, ENT, U/D

VCC = 5.5 V,

VI = 7 V

0.2

0.2

mA

II

All others

VCC = 5.5 V,

VI = 7 V

0.1

0.1

mA

IIH

LOAD, ENT, U/D

VCC = 5.5 V,

VI = 2.7 V

40

40

A

IIH

All others

VCC = 5.5 V,

VI = 2.7 V

20

20

µA

IIL

LOAD, ENT, U/D

VCC = 5.5 V,

VI = 0.4 V

−1

−1

mA

IIL

All others

VCC = 5.5 V,

VI = 0.4 V

− 0.5

− 0.5

mA

IO‡

VCC = 5.5 V,

VO = 2.25 V

−30

−112

−30

−112

mA

ICC

VCC = 5.5 V

41

63

41

63

mA

† All typical values are at VCC = 5 V, TA = 25°C.

‡ The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.

switching characteristics (see Figure 1)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

TA = MIN to MAX§

UNIT

PARAMETER

(INPUT)

(OUTPUT)

SN54AS169A

SN74AS169A

UNIT

MIN

MAX

MIN

MAX

fmax*

60

75

MHz

tPLH

CLK

RCO

3

17.5

3

16.5

ns

tPHL

CLK

RCO

(LOAD high or low)

2

14

2

13

ns

tPLH

CLK

Any Q

1

7.5

1

7

ns

tPHL

CLK

Any Q

2

14

2

13

ns

tPLH

ENT

RCO

1.5

10

1.5

9

ns

tPHL

ENT

RCO

1.5

10

1.5

9

ns

tPLH

U/D

RCO

2

14

2

12

ns

tPHL

U/D

RCO

2

14.5

2

13

ns

* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested.

§ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.