LM555H Datasheet | Texas Instruments

FEATURES - 2 Direct Replacement for SE555/NE555 - Timing from Microseconds through Hours - Operates in Both Astable and Monostable Modes - Adjustable Duty Cycle - Output can Source or Sink 200 m A - Output and Supply TTL patible - Temperature Stability Better than 0.005% per °C - Normally On and Normally Off Output DESCRIPTION The LM555 is a highly stable device for generating accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For astable operation as an oscillator, the free running frequency and duty cycle are accurately controlled with two external resistors and one capacitor. The circuit may be triggered and reset on falling waveforms, and the output circuit can source or sink up to 200m A or drive TTL circuits. APPLICATIONS - Precision Timing - Pulse Generation - Sequential Timing - Time Delay Generation - Pulse Width Modulation - Pulse Position Modulation - Linear Ramp Generator CONNECTION DIAGRAM Figure 1. Dual-In-Line Package Figure 2. Metal Can Package Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2005- 2013, Texas Instruments Incorporated LM555QML SNOSAP2C - AUGUST 2005 - REVISED APRIL 2013 SCHEMATIC DIAGRAM .ti. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to...