SN74LS628NE4

Programmable Timers And Oscillators Overview

The SN74LS628NE4 is a voltage-controlled oscillator (VCO) from the Texas Instruments SN74LS62x series, utilizing Low-power Schottky TTL logic. It operates on a single supply voltage ranging from 4.75 V to 5.25 V and supports an operating temperature range of 0°C to +70°C. The device is housed in a 14-pin Plastic Dual In-Line Package (PDIP). Key electrical characteristics include a low-level output current of 8 mA and a high-level output current of -400 µA. Propagation delay is specified at 13 ns.

Programmable Timers And Oscillators Feature Summary

• Voltage-Controlled Oscillator functionality within the SN74LS62x family
• Low-power Schottky (LS) technology for reduced power dissipation
• Standard 5 V operation with 4.75 V to 5.25 V supply range
• Through-hole PDIP-14 package construction

Programmable Timers And Oscillators Applications

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

Programmable Timers And Oscillators Procurement Notes

Verify the component against official datasheet SDLS186 specifications before integration. Confirm that the PDIP-14 package dimensions align with the target PCB footprint. Ensure the operating environment remains within the 0°C to +70°C commercial temperature rating. Cross-reference the manufacturer part number SN74LS628NE4 with authorized distributors to ensure authenticity and traceability.

Programmable Timers And Oscillators Selection Notes

Select this component when a TTL-compatible voltage-controlled oscillator is required. Compare propagation delay and output drive capabilities against system timing requirements. Consider the PDIP-14 package constraints if surface-mount alternatives like the SOIC variant are not suitable for the assembly process. Verify compatibility with existing 5 V logic levels.

Programmable Timers And Oscillators Part Context

This part belongs to the SN74LS624 through SN74LS629 family of voltage-controlled oscillators manufactured by Texas Instruments. The 'NE4' suffix indicates the specific PDIP-14 package configuration with lead-free plating compliant with RoHS standards. It serves as a commercial-grade alternative to the military-specification SN54LS628J.

Programmable Timers And Oscillators Replacement Considerations

SN74LS628N is the standard catalog equivalent without the environmental suffix.