SNJ54LS629J

Programmable Timers And Oscillators Overview

The SNJ54LS629J is a voltage-controlled oscillator (VCO) belonging to the SN54LS62x series, manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an extended military temperature range from -55°C to +125°C. The device is housed in a 16-pin Ceramic Dual In-Line Package (CDIP). As part of the LS logic family, it utilizes Low-power Schottky technology to provide high-speed operation with reduced power consumption compared to standard TTL equivalents.

Programmable Timers And Oscillators Feature Summary

• Voltage-Controlled Oscillator functionality with frequency modulation via control voltage
• Military-grade reliability rated for -55°C to +125°C operating temperatures
• Low-power Schottky (LS) logic technology for optimized speed-power product
• 16-lead CDIP package suitable for through-hole mounting

Programmable Timers And Oscillators Applications

• Frequency modulation circuits
• Phase-locked loop (PLL) systems
• Tone generation and audio synthesis
• Clock signal generation in military avionics

Programmable Timers And Oscillators Procurement Notes

Verify component authenticity and traceability when sourcing SNJ54LS629J, as it is a military-specification device. Confirm that the supplier provides documentation regarding QML certification or compliance with MIL-PRF-38534 standards if required for defense applications. Ensure storage conditions maintain moisture protection for ceramic packages.

Programmable Timers And Oscillators Selection Notes

Select the SNJ54LS629J when a robust, temperature-stable VCO is required for harsh environments. Compare against SN74LS629J for commercial grade applications where the -55°C lower limit is unnecessary. Verify that the external timing components support the desired frequency range specified in the datasheet electrical characteristics.

Programmable Timers And Oscillators Part Context

The SNJ54LS629J is part of the SN54LS624 through SN54LS629 family of voltage-controlled oscillators. This family shares similar architectural features but may differ in specific pin configurations or internal circuitry optimizations. The 'SNJ' prefix indicates a military-grade ceramic dual in-line package variant produced under strict quality controls.

Programmable Timers And Oscillators Replacement Considerations

Direct replacements include SN54LS629J from other qualified manufacturers or SN74LS629J for non-military applications. Cross-reference with SN54LS628J if different pinout compatibility is needed. Verify that substitute parts meet the same voltage and temperature specifications.