ST offers pin-to-pin fully standard-compatible low-power timers, in single and dual independent channel versions.
These devices are highly stable monolithic circuits, generating accurate time delays (monostable mode) or programmable oscillations ( stable mode) with accurate frequency and duty-cycle.
The industry-standard frequency generators are circuits designed in bipolar technology, low frequency and with high power consumption. ST low-power products are designed in CMOS technology, low power and low consumption and can reach high frequency operation up to 2.7 MHz.
Applications:
Product types:
TS555 and TS556 devices require a voltage supply range within +2V to +16V allowing to work with multiple different voltage rails (3.3V, 5.0V, 12V, etc.). The excellent temperature stability (75ppm/°C) allows small timing shift with ambient temperature variation up to 125°C. ST CMOS low power timers are available in standard plastic SMD packages SO8 and SO14 for single and dual channels, respectively.
Simplified single channel timer block diagram
Benefits
- High frequency operation up to 2.7 MHz
- Reduced power consumption
- Reduced supply current spikes during output transitions
- Flexible application design from 2V up to 16V power supply
- Extended temperature range up to 125°C for extreme ambient conditions
