SN74LS627N

Programmable Timers And Oscillators Overview

The SN74LS627N is a voltage-controlled oscillator (VCO) belonging to the Texas Instruments 74LS series. It operates within a supply voltage range of 4.75V to 5.25V and supports an output frequency range from 1.1MHz to 25MHz. The device utilizes bipolar technology and features push-pull outputs capable of sourcing up to 0.4mA and sinking up to 8mA. Designed for commercial applications, it functions reliably across an operating temperature range of 0°C to 70°C.

Programmable Timers And Oscillators Feature Summary

• Voltage-Controlled Oscillator with 1.1MHz to 25MHz output frequency
• Standard 74LS logic family with 4.75V to 5.25V supply voltage
• Push-pull outputs providing 8mA sink and -0.4mA source current
• Commercial grade operation from 0°C to 70°C

Programmable Timers And Oscillators Applications

• Frequency modulation circuits
• Phase-locked loop (PLL) systems
• Signal generation modules

Programmable Timers And Oscillators Procurement Notes

Verify the specific package configuration against design requirements. Confirm that the 74LS series meets the system's power consumption and speed constraints compared to modern alternatives. Ensure the 4.75V to 5.25V supply rail is stable to maintain accurate oscillation frequencies.

Programmable Timers And Oscillators Selection Notes

Select this component when a discrete VCO solution within the standard TTL voltage domain is required. The 74LS series offers defined drive strength suitable for moderate loading conditions. Verify that the 1.1MHz to 25MHz tuning range aligns with the target application bandwidth.

Programmable Timers And Oscillators Part Context

This part is part of the SN54LS624 through SN74LS629 family of voltage-controlled oscillators. The 'SN' prefix indicates a commercial-grade device, while 'LS' denotes Low-power Schottky technology. Other variants in the family include SN74LS624, SN74LS628, and SN74LS629.

Programmable Timers And Oscillators Replacement Considerations

Compatible replacements within the same family include SN74LS624, SN74LS628, and SN74LS629. These devices share similar electrical characteristics and pinouts but may differ in specific frequency tuning ranges or internal circuit configurations.