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1.20

1.15

1.10

1.05

1.00

0.95

0.90

1.5

2

2.5

3

3.5

4

4.5

5

5.5

6

RT = 10 kΩ

TA = 25°C

tW = K × CT × RT

VCC − Supply Voltage − V

OUTPUT PULSE-DURATION CONSTANT

vs

SUPPLY VOLTAGE

CT = 1000 pF

CT = 0.01 µF

CT = 0.1 µF

MINIMUM TRIGGER TIME

vs

VCC CHARACTERISTICS

RT = 1 kΩ

TA = 25°C

10.00

0

1.00

0.10

0.01

1

2

3

4

5

6

CT = 0.01 µF

CT = 1000 pF

CT = 100 pF

VCC − Supply Voltage − V

1.00 1.50 2.00

2.50 3.00 3.50 4.00 4.50

0.00001

0.0001

0.001

TA = 25°C

VCC = 5 V

For Capacitor Values of

0.001

µF or Greater,

K = 1.0

(K is Independent of R)

Multiplier Factor − K

EXTERNAL CAPACITANCE VALUE

vs

MULTIPLIER FACTOR

tw − Output Pulse Duration

DISTRIBUTION OF UNITS

vs

OUTPUT PULSE DURATION

Mean = 856 ns

Median = 856 ns

Std. Dev. = 3.5 ns

VCC = 5 V

TA = 25°C

CT = 50 pF

RT = 10 kW

−3 Std. Dev.

+3 Std. Dev.

Median

99% of Data Units

SN74AHC123A-EP

DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR

SCLS703A – JULY 2006 – REVISED MARCH 2007

APPLICATION INFORMATION (continued)

NOTE: Operation of the device at these or any other conditions beyond those indicated under "recommended operating

conditions" is not implied.

Figure 7.

Figure 8.

Figure 9.

Figure 10.

11

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