NE555PG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The NE555PG4 is a classic precision timer IC from Texas Instruments, capable of monostable and astable operation with timing from microseconds to hours. It operates from a 4.5V to 16V supply, sourcing or sinking up to 200 mA of output current in an 8-pin PDIP package. Available in standard through-hole PDIP-8 with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- NE555PG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Wide supply voltage range from 4.5V to 16V enables use in both 5V logic and 12V power systems
- High output drive capability of up to 200 mA for directly driving relays, LEDs, and small loads
- Versatile monostable and astable timing modes covering durations from 1 µs to hours with simple RC networks
Applications
The NE555PG4 is widely used for generating precise time delays, pulse-width modulation signals, and square-wave oscillators in educational, hobbyist, and industrial applications. It is commonly found in LED flasher circuits, missing-pulse detectors, and motor speed controllers operating on 4.5V to 16V supplies. Its robust 200 mA output drive and decades-long production history make it a preferred choice for prototyping and legacy circuit repair.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for NE555PG4:
Frequently Asked Questions
What supply voltage range does the NE555PG4 support, and how much output current can it deliver?
The NE555PG4 operates from 4.5V to 16V and can source or sink up to 200 mA of output current, allowing it to directly drive relays, LED arrays, and small DC loads without an additional buffer stage.
How is the NE555PG4 configured for astable oscillator operation, and what frequency range is achievable?
In astable mode, the NE555PG4 uses two external resistors and one capacitor to set oscillation frequency. By selecting component values, frequencies from below 1 Hz up to approximately 500 kHz are achievable, covering applications such as audio tone generation, LED blinking, and PWM motor control on a 4.5V to 16V rail.
When should NE555PG4 be chosen over a CMOS 555 variant such as LMC555?
The NE555PG4 is preferred when output drive strength is the priority, as its bipolar design delivers up to 200 mA versus the 100 mA limit of most CMOS 555 variants. However, for battery-powered designs requiring supply voltage below 4.5V or quiescent current under 1 mA, a CMOS LMC555 operating down to 1.5V is the better choice.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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