CD54HC123 datasheet(8/19 Pages) TI

Numer części	CD54HC123

Szczegółowy opis	High-Speed CMOS Logic Dual Retriggerable Monostable Multivibrators with Resets

PDF	19 Pages

Scroll/Zoom	100%

Producent	TI [Texas Instruments]

Strona internetowa	http://www.ti.com

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8 / 19 page

Test Circuits and Waveforms

FIGURE 1. OUTPUT PULSE CONTROL USING RESET INPUT

(R) PULSE FOR 123

FIGURE 2. OUTPUT PULSE CONTROL USING RESET INPUT

(R) FOR 423

FIGURE 3. TRIGGERING OF ONE SHOT BY INPUT A OR INPUT B FOR A PERIOD tW

FIGURE 4. TYPICAL OUTPUT PULSE WIDTH AS A FUNCTION

OF CX FOR RX = 10kΩ AND 100kΩ

FIGURE 5. TYPICAL “K” FACTOR AS A FUNCTION OF VCC

B = LOW

A = HIGH

B = LOW

A = HIGH

trT

(R = HIGH)

NOTE: Output pulse control using retrigger pulse for 123 and 423.

103

102

101

EXTERNAL CAPACITANCE (CX) - pF

24 6 8

103

104

4 68

105

106

107

R X

100k

Ω

R X

10k

Ω

DC SUPPLY VOLTAGE (VCC) = 5V

AMBIENT TEMPERATURE (TA) = 25

EXTERNAL CAPACITANCE (CX) = 10nF

EXTERNAL RESISTANCE (RX) = 10kΩ TO 100kΩ

AMBIENT TEMPERATURE (TA) = 25

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

HCT

DC SUPPLY VOLTAGE (VCC) - VOLTS

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