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Switching Characteristics

Operating Characteristics

SN74AHC123A-EP

DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR

SCLS703A – JULY 2006 – REVISED MARCH 2007

over recommended operating free-air temperature range, V

CC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)

TA = 25°C

FROM

TO

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

(INPUT)

(OUTPUT)

MIN

TYP

MAX

tPLH

6.5(1)

12(1)

1(1)

14(1)

A or B

Q or Q

CL = 15 pF

ns

tPHL

7.1(1)

12(1)

1(1)

14(1)

tPLH

5.3(1)

9.4(1)

1(1)

11(1)

CLR

Q or Q

CL = 15 pF

ns

tPHL

6.5(1)

9.4(1)

1(1)

11(1)

tPLH

6.9(1) 12.9(1)

1(1)

15(1)

CLR trigger

Q or Q

CL = 15 pF

ns

tPHL

7.4(1) 12.9(1)

1(1)

15(1)

tPLH

7.3

14

1

16

A or B

Q or Q

CL = 50 pF

ns

tPHL

8.3

14

1

16

tPLH

6.3

11.4

1

13

CLR

Q or Q

CL = 50 pF

ns

tPHL

7.4

11.4

1

13

tPLH

7.6

14.9

1

17

CLR trigger

Q or Q

CL = 50 pF

ns

tPHL

8.7

14.9

1

17

CL = 50 pF,

Cext = 28 µF,

167

200

240

ns

Rext = 2 kΩ

CL = 50 pF,

tw(2)

Q or Q

Cext = 0.01 µF,

90

100

110

90

110

µs

Rext = 10 kΩ

CL = 50 pF,

Cext = 0.1 µF,

0.9

1

1.1

0.9

1.1

ms

Rext = 10 kΩ

∆t

w

(3)

±1%

(1)

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

(2)

tw = Pulse duration at Q and Q outputs

(3)

∆t

w = Output pulse-duration variation (Q and Q) between circuits in same package

V

CC = 5 V, TA = 25°C

PARAMETER

TEST CONDITIONS

TYP

UNIT

Cpd

Power dissipation capacitance

No load

29

pF

6

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