Timer TS555CN

The 555 timer is a highly stable controller capable of producing accurate time delays or oscillation. 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. 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). In bistable mode the 555 can operate as a flip-flop or changeover. Applications include bouncefree latched switches.

The TS555 is a single CMOS timer version which offers very low consumption (Icc(TYP) TS555 = 110μA at VCC=+5V versus Icc(TYP) NE555 = 3mA) and high frequency ff(max.) TS555 = 2.7MHz versus f(max.) NE555 = 0.1 MHz) Thus, either in Monostable or Astable mode, timing remains very accurate. The TS555 provides reduced supply current spikes during output transitions, which enables the use of lower decoupling capacitors compared to those required by bipolar NE555. Timing capacitors can also be minimized due to high input impedance (1012W).