74LS124 is a part of the 74XXYY low schkotty IC series. The 74LS32 IC has a wide range of working voltage, a wide range of working conditions, and directly interfaces with CMOS, NMOS, and TTL. The output of the IC always comes in TTL which makes it easy to work with other TTL devices and microcontrollers. The IC 74LS32 is smaller in size and it has a much faster speed which makes it reliable in every kind of device.
What is a Voltage Controlled Oscillator?
A Voltage controlled oscillator is a type of oscillator where the frequency of the output oscillations can be varied by varying the amplitude of an input voltage signal. The oscillation frequency varies from few hertz to hundreds of GHz. Voltage controlled oscillators are commonly used in frequency (FM), pulse (PM) modulators, and phase locked loops (PLL).
74LS124 Key Features & Specifications
- Technology Family: LS
- VCC (Min): 4.75V
- VCC (Max): 5.25
- Bits (#): 2
- Operating Voltage (Nom): 5V
- Frequency at normal voltage (Max): 35MHz
- Propagation delay (Max): 20ns
- IOL (Max): 24mA
- IOH (Max):-1.2mA
- Rating: Catalog
- Available in 14-pin PDIP, GDIP, PDSO packages
74LS124 Pinout
| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | 2FC | Frequency Counter pin 2 |
| 2 | 1FC | Frequency Counter pin 1 |
| 3 | 1RNG | Range Input Pin 1 |
| 4 | 1CX1 | Pin to connect Cext capacitance |
| 5 | 1CX2 | Pin to connect Cext capacitance |
| 6 | 1EN’ | Active low Enable Pin |
| 7 | 1Y | Output pin Y1 |
| 8 | OSC GND | Oscillator Ground Pin |
| 9 | GND | Ground |
| 10 | 2Y | Output Pin Y2 |
| 11 | 2EN’ | Active Low Enable Pin 2 |
| 12 | 2CX2 | Pin to connect Cext capacitance |
| 13 | 2CX1 | Pin to connect Cext capacitance |
| 14 | 2RNG | Range Input Pin 2 |
| 15 | OSC Vcc | Oscillator Supply voltage pin |
| 16 | Vcc | Chip Supply Voltage |
Applications
The 74LS124 IC has a number of uses, some of them are listed as below:
- It is used in function generators & phase-locked loops including frequency synthesizers used in communication equipment
- It is also used in the production of electronic music, to generate variable tones in synthesizers.
74LS124 Datasheet
You can download the 74LS124 Dual Voltage Controlled Oscillator IC Datasheet from the link given below:
See Also: 74LS109 Dual JK Positive Edge-Triggered Flip-Flop | 74LS92 4-Bit Divide By Twelve Binary Counter | 74LS73 Dual JK Negative Edge Triggered Flip-Flop
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