74LS124 Dual Voltage Controlled Oscillator IC – Datasheet

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