What is UM66 IC?
UM66 is a 64 note melody generator IC that is available in TO-92 package. The IC can play five different tones based on the version. It can be easily used along with an NPN transistor to drive a speaker which is rated for 6/8 ohms. It is commonly used in toys, bells, alarm clocks etc.
How UM66 works?
UM66 is a melody generating IC commonly used in calling bell, phone, toys, musical bell in doors, home security alarm systems, burglar alarms etc. It is a three pin IC looks like a transistor. Its first pin is ground, second is VCC and the third is the melody output.
What is melody IC?
Melody Generator ICs Built in oscillator circuit minimises additional component requirement, and a simple circuit can be constructed with only a 3V battery and 8ohm speaker. Power supply is 1.5V to 4.5V. Range of melodies as listed below. RoHS compliant.
How many pins does IC 555 have?
8-pin
Pinout. The pinout of the 8-pin 555 timer and 14-pin 556 dual timer are shown in the following table.
What Is pin number 2 IC 555?
Trigger pin
Pin 2. It is the Trigger pin to activate the IC’s timing cycle. It is generally low signal pin and the timer is triggered when voltage on this pin is below one third of the supply voltage. The trigger pin is connected to the Inverting input of the comparator inside the IC and accepts negative signals.
What is pin 7 of IC 555 timer?
Pin-7 is the discharge pin, when the output of the open collector discharges a capacitor between the intervals, then it toggles the output from high to low. Supply Terminal. Pin-8 is the voltage supply pin which is used to supply the voltage to the IC with respect to the ground terminal.
What is BC547 pinout?
BC547 transistor pinout or pin diagram has three pins, starting from left: collector, emitter, and base respectively. It is available in two packages: SMD and TO-92 package. A transistor is a semiconductor device used for amplifying or switching an electronic signal. BC547 is an NPN Bipolar Junction Transistor.
What is the function of IC 555 pin No 8?
Pin diagram and description
Pin | Name | Purpose |
---|---|---|
7 | DIS | Open collector output which may discharge a capacitor between intervals. In phase with output. |
8 | Vcc | Positive supply voltage, which is usually between 3 and 15 V depending on the variation. |
Can I use a BC547 transistor instead of a 2n2222a transistor?
Product Datasheet. Can we use BC547 instead of 2N2222? Yes, you can use, for switching just look for Ic(collector current) and Vceo(collector-emitter voltage) in the datasheet.
What is the supply voltage of um66?
UM66 is a melody generating IC commonly used in calling bell, phone, toys, musical bell in doors, home security alarm systems, burglar alarms etc. It is a three pin IC looks like a transistor. Its first pin is ground, second is VCC and the third is the melody output. Supply voltage that can be given to the IC is in the range of 1.5V- 4.5V.
What is the number of gates in a logic chip?
Typically, standard logic gates are available in 14 pin or 16 pin DIL (dual in line) chips. The number of gates per IC varies depending on the number of inputs per gate. Two−input gates are common, but if only a single input is required, such as in the 7404 NOT(or inverter) gates, a 14 pin IC can accommodate 6 (or Hex) gates.
What is um66 used for?
UM66 is a melody generating IC commonly used in calling bell, phone, toys, musical bell in doors, home security alarm systems, burglar alarms etc. It is a three pin IC looks like a transistor. Its first pin is ground, second is VCC and the third is the melody output.
What is um66 melody generator?
UM66 Melody Generator – First Step for Electronics Hobbyists. UM66 is a melody generating IC commonly used in calling bell, phone, toys, musical bell in doors, home security alarm systems, burglar alarms etc. It is a three pin IC looks like a transistor. Its first pin is ground, second is VCC and the third is the melody output.