有创意的网名RETRIGGERABLE MONOSTABLE MULTIVIBRATORS出奇制胜
The dc triggered multivibrators feature pul width control by three meth-ods. The basic pul width is programmed by lection of external resistance and capacitance values. The LS122 has an internal timing resistor that allows the circuits to be ud with only an external capacitor. Once triggered, the ba-sic pul width may be extended by retriggering the gated low-level-active (A)or high-level-active (B) inputs, or be reduced by u of the overriding clear.
•Overriding Clear Terminates Output Pul
•Compensated for V CC and T emperature Variations
花茶有哪些
•DC Triggered from Active-High or Active-Low Gated Logic Inputs •Retriggerable for Very Long Output Puls, up to 100% Duty Cycle •Internal Timing Resistors on LS122
SN54/74LS122 (TOP VIEW)(SEE NOTES 1 THRU 4)
SN54/74LS123 (TOP VIEW)(SEE NOTES 1 THRU 4)
NOTES:结膜
幼儿园怎么报名1.An external timing capacitor may be connected between C ext and R ext /C ext (positive).
2.To u the internal timing resistor of the LS122, connect R int to V CC .
3.For improved pul width accuracy connect an external resistor between R ext /C ext and V CC with R int open-circuited.
4.To obtain variable pul widths, connect an external variable resistance between R int /C ext and V CC .
繁体单字R ext/C晋察冀的意思
R ext/C ext 11ĂR孕妇能吃乌梅吗
ext/2CLR
C ext
NC Ċ NO INTERNAL CONNECTION.
