CD74AC161 datasheet(9/15 Pages) TI

9 / 15 page

CD54AC161, CD74AC161

4-BIT SYNCHRONOUS BINARY COUNTERS

SCHS239C – SEPTEMBER 1998 – REVISED MARCH 2003

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

switching characteristics over recommended operating free-air temperature range, CL = 50 pF

(unless otherwise noted) (see Figure 1)

PARAMETER

FROM

(INPUT)

(OUTPUT)

VCC

–55

°C to

125

°C

–40

°C to

°C

UNIT

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

1.5 V

fmax

3.3 V

± 0.3 V

MHz

5 V

± 0.5 V

103

1.5 V

–

209

–

190

RCO

3.3 V

± 0.3 V

23.4

CLK

5 V

± 0.5 V

4.3

16.7

4.3

15.2

CLK

1.5 V

–

207

–

188

Any Q

3.3 V

± 0.3 V

5.9

23.1

5.9

5 V

± 0.5 V

4.2

16.5

4.2

1.5 V

–

129

–

117

tpd

ENT

RCO

3.3 V

± 0.3 V

3.6

14.4

3.7

13.1

5 V

± 0.5 V

2.6

10.3

2.7

9.4

1.5 V

–

207

–

188

Any Q

3.3 V

± 0.3 V

5.9

23.1

5.9

CLR

5 V

± 0.5 V

4.2

16.5

4.2

CLR

1.5 V

–

207

–

188

RCO

3.3 V

± 0.3 V

5.9

23.1

5.9

5 V

± 0.5 V

4.2

16.5

4.2

operating characteristics, TA = 25°C

PARAMETER

TEST CONDITIONS

TYP

UNIT

Cpd

Power dissipation capacitance

No load

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