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NA555 Datasheet Precision Timer

Manufacturer: Texas Instruments

General Description

The Nx555 and Sx555 devices are precision timing circuits capable of producing accurate time delays or oscillation.

In time-delay or monostable operating modes, the timed interval is controlled by a single external resistor and capacitor network.

In the astable mode of operation, the frequency and duty cycle are controlled independently with two external resistors and a single external capacitor.

Overview

NA555, NE555, SA555, SE555 SLFS022J – SEPTEMBER 1973 – REVISED FEBRUARY 2025 xx555 Precision Timers.

Key Features

  • Timing from microseconds to hours.
  • Astable or monostable operation.
  • Adjustable duty cycle.
  • TTL-compatible output can sink or source up to 200mA.
  • 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. 2.