I am trying to make a design were if MCU gives pulse or a clock high then circuit should function else it shouldn't operate.
How often does the MCU have to send the pulse?I am trying to make a design were if MCU gives pulse or a clock high then circuit should function else it shouldn't operate.
The Program of MCU cannot be altered so, we have Pulse coming from MCU. when it activates the high signal it should enable the chip and next circuit should work. if signal is low, it should deactivate the corresponding circuit. the chip will have 1 input with 1 output. will think about monostable multivibratorHow often does the MCU have to send the pulse?
You can use a monostable multivibrator circuit.
Why not just let the MCU enable the circuit with a logic signal?
Your request is inconsistent.The Program of MCU cannot be altered so, we have Pulse coming from MCU. when it activates the high signal it should enable the chip and next circuit should work. if signal is low, it should deactivate the corresponding circuit. the chip will have 1 input with 1 output. will think about monostable multivibrator
I am not able to understand what does the on/off signal means?? MCU is used for a detector and when signal is detected MCU which change its state to High and i want that circuit to operate only when high pulse signal input.Your request is inconsistent.
If the signal is high the circuit works.
If the signal is low the circuit is deactivated.
Why not use this signal directly as an ON/OFF signal?
In the attached image. There is a circuit which is giving output 5v continuously to lcd 16*2 and keeps light on lcd. Now when a signal through MCU comes in high i need that light to turn on. Then it should be off when signal turns low. So inbetween i need a ic so that it controls this process(I am now wondering if “the chip” needs to be pulled low to operate, but anything I come up with is going to be pure surmise.)
the backlight should be on only when mcu gives high signal. Now i think seeing the below idea you might understand what i am trying to achieve.We are going around in circles with the same request.
Circuit outputs 5V continuously to turn on LCD.
When circuit outputs 0V LCD is turned off.
In many instances you do not need anything else.
If you need to enable power to the LCD then a simple power transistor or mechanical relay is all that is needed.
LCD PART NUMBER - LM3037BDW-1 ( 16*2 LCD ) . I want 5v supply from 24v to the backlight and should turnoff when mcu says turn off by giving signal low.Do you have a part number for the display?
Just to be complete, this is from the datasheet: