NE555P Datasheet – Single Precision Timer – TI

This is one of the timer types.

Part Number : NE555P

Function : Single Precision Timer

Package : PDIP 8 Pin

Manufactures : Texas Instruments

Image
NE555P-Single-Precision-Timer

Description

These devices are precision timing circuits capable of producing accurate time delays or oscillation. In the time-delay or mono-stable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the a-stable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.

The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset, and the output goes low. When the output is low, a low-impedance path is provided between discharge (DISCH) and ground.

 

Pinout
NE555P-datasheet-pinout
Features

  • Timing From Microseconds to Hours
  • Astable or Monostable Operation
  • Adjustable Duty Cycle
  • TTL-Compatible Output Can Sink or Source
    Up to 200 mA
  • On Products Compliant to MIL-PRF-38535,
    All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include
    Testing of All Parameters.

 

 

Official Homepage : http://www.ti.com/product/NE555

NE555P Datasheet

 

NE555 – 555 Precision Timer

This is one of the timer ic types.

Part Number : NE555, SA555, NA555

Function : PRECISION TIMER

Package : SO-8 Pin

Manufacturers : Diodes Incorporated.

NE555 Pinout

NE555 Pinout

 

Description

These devices are precision timing circuits capable of producing accurate time delays or oscillation. In the time delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the astable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.

The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low.

NE555 block diagram

NE555 Datasheet Timer

Features

1. Timing from microseconds to hours
2. Astable or monostable operation
3. Adjustable duty cycle
4. TTL compatible output can source or sink up to 200mA
5. “Green” Molding Compound (No Br, Sb)
6. Lead Free Finish/ RoHS Compliant (Note 1)

Other data sheets within the file : 555, NA555, NA555S-13, NE555S-13

NE555 Datasheet PDF

NE555 pdf