NE555N Datasheet – General-purpose Timer

Part Number : NE555N

Function : General-purpose Single Bipolar Timer

Package :  DIP 8 Pin Type

Manufacturers : STMicroelectronics


NE555N Timer IC


The NE555, NE555N, SA555, and SE555 monolithic timing circuits are highly stable controllers capable of producing accurate time delays or oscillation. In the time delay mode of operation, the time is
precisely controlled by one external resistor and capacitor. For a stable operation as an oscillator, the free running frequency and the duty cycle are both accurately controlled with two external resistors and one capacitor. The circuit may be triggered and reset on falling waveforms, and the output structure can source or sink up to 200 mA. […]


NE555N datasheet pinout


1. Low turn-off time
2. Maximum operating frequency greater than 500 kHz
3. Timing from microseconds to hours
4. Operates in both astable and monostable modes
5. Output can source or sink up to 200 mA
6. Adjustable duty cycle
7. TTL compatible
8. Temperature stability of 0.005% per °C

NE555N ordering information

NE555N Datasheet

BZX79 Datasheet PDF

Part Number : BZX79

Function : Voltage regulator diodes

Manufacturers : NXP Semiconductors.

Pinouts :

BZX79 datasheet

Description :

Low-power voltage regulator diodes in hermetically sealed leaded glass SOD27 (DO-35) packages. The diodes are available in the normalized E24 ±2% (BZX79-B) and
approx. ±5% (BZX79-C) tolerance range. The series consists of 37 types with nominal working voltages from 2.4 to 75 V.


• Total power dissipation: max. 500 mW
• Two tolerance series: ±2%, and approx. ±5%
• Working voltage range: nom. 2.4 to 75 V (E24 range)
• Non-repetitive peak reverse power dissipation: max. 40 W.

BZX79 Datasheet PDF Download

BZX79 pdf

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