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NE556 - Dual Precision Timers

General Description

The Nx556 and Sx556 devices provide two independent timing circuits of the NA555, NE555, SA555, or SE555 type in each package.

These circuits operate in an astable or monostable mode with external resistor-capacitor (RC) timing control.

Key Features

  • Two precision timing circuits per package.
  • Astable or monostable operation.
  • TTL-compatible output can sink or source up to 200mA.
  • Active pullup or pulldown 2.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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NA556, NE556, SA556, SE556 SLFS023H – APRIL 1978 – REVISED DECEMBER 2024 Nx556, Sx556 Dual Precision Timers 1 Features • Two precision timing circuits per package • Astable or monostable operation • TTL-compatible output can sink or source up to 200mA • Active pullup or pulldown 2 Applications • Precision timers from microseconds to hours • Pulse-shaping circuits • Missing-pulse detectors • Pulse-width modulators • Pulse-position modulators • Sequential timers • Pulse generators • Frequency dividers • Application timers • Industrial controls CONT RESET VCC R THRES R R1 R1 S OUT TRIG R DISCH GND Simplified Schematic (Each Timer) 3 Description The Nx556 and Sx556 devices provide two independent timing circuits of the NA555, NE555, SA555, or SE555 type in each package.