VCO in a 5V TTL system — 20 MHz ceiling
The SN74LS624N is a voltage-controlled oscillator from the 74LS logic family, offering a maximum oscillation frequency of 20 MHz. It operates from a standard 5V TTL supply rail (4.75V–5.25V) and draws 20 mA typical supply current. The 0°C to 70°C temperature grade suits commercial and indoor equipment environments.
Through-hole DIP — breadboard and legacy PCB fit
Housed in a 14-pin DIP with 0.300-inch body width (14-DIP, 7.62 mm pitch), the SN74LS624N mounts directly into through-hole sockets or solders into plated-through holes.