<P>The <STRONG>555</STRONG> timer is a highly stable controller capable of producing accurate time delays or oscillation. The <STRONG>556</STRONG> timer combines two 555 timers on a single chip.</P><P>The 555 can be used in countless applications and has three recognised operating modes. In monostable mode the 555 functions as a one-shot or pulse stretcher. Applications include timers, missing pulse detection and bouncefree switches.</P><P>In astable mode the 555 can operate as an oscillator. Applications include LED and lamp flashers, pulse generation, logic clocks, tone generation, security alarms and Pulse Width Modulation (PWM).</P><P>In bistable mode the 555 can operate as a flip-flop or changeover. Applications include bouncefree latched switches.</P><P>The <STRONG>ICM7555</STRONG> and <STRONG>ICM7556</STRONG> are improved versions including lower supply current and a wide supply voltage range.</P>
Bipolar and CMOS technologies, CMOS offering lower power consumption (1mW typ at VDD=5V)
A. Hi Chris, thank you for your question. The standard bipolar version can be found here.
07 April 2014 Question by: Ian Simpson
| Product code: 82-1200
I am looking for surface mount version of the TLC555CP and both the TLC555CD and the TLC555ID look okay.
What is the difference between the CD and ID ?
A. Hi Ian. Thank you for your question. The ID is the industrial temperature range device +40 to 85 degrees. The CD is the standard temperature version 0 to 70 degrees. The difference is only the operation temperature range.
27 May 2012 Question by: Karlson
| Product code: 82-0336
Q. Does the 555 timer come with a chip holder which allows me to solder it onto a PCB?
A. Thanks for your enquiry. No I'm afraid the chip does not come with a holder, it's sold seperately as product code 22-1720.