NJM555D

Programmable Timers And Oscillators Overview

The NJM555D is a monolithic timer IC manufactured by Nisshinbo Micro Devices Inc., utilizing bipolar technology. It provides accurate time delays or oscillation with minimal external components. The device operates within a supply voltage range of 4.5V to 16V and features an output capable of sourcing or sinking up to 200mA, allowing direct drive of TTL circuits. Key electrical characteristics include a typical operating current of 3.0mA at 5V and 10mA at 15V, with a timing error initial accuracy of 1.0%. The unit is housed in an 8-pin DIP package.

Programmable Timers And Oscillators Feature Summary

• Bipolar technology for stable control
• Output current capability of 200mA source/sink
• Minimal external component requirement (resistor/capacitor)
• Trigger and reset terminals for falling waveforms

Programmable Timers And Oscillators Applications

• Time delay generation
• Pulse width modulation
• 50% duty cycle oscillator
• Frequency modulation via control voltage

Programmable Timers And Oscillators Procurement Notes

This product is designated as discontinued and will be removed from production in the near term. It is available exclusively for customers currently utilizing the component, subject to a specific time limit. New projects are advised against selecting this part; alternative existing products should be evaluated. Contact regional sales offices for further availability details.

Programmable Timers And Oscillators Selection Notes

Select the NJM555D for applications requiring precise timing controlled by two external parts. Ensure the operating temperature remains between -40°C and +85°C. Verify power dissipation limits based on the mounting board specifications, as the DIP8 package has a maximum power dissipation of 1000mW under standard conditions.

Programmable Timers And Oscillators Part Context

The NJM555D belongs to the NJM555 series of timers. Other variants in this family include the NJM555L, NJM555M, and NJM555V, which share similar functional characteristics but may differ in packaging options such as DMP8, SSOP8, or SIP8.

Programmable Timers And Oscillators Replacement Considerations

Due to discontinuation, verify compatibility with alternative timer ICs. Consult manufacturer recommendations for new designs.