TS555IN

Overview

The TS555IN is a single-channel CMOS timer manufactured by STMicroelectronics, designed as a low-power alternative to standard bipolar timers. It operates within a supply voltage range of +2 V to +16 V and supports high-frequency operation up to 2.7 MHz. The device features very low power consumption, with typical supply currents of 110 μA at 5 V and 90 μA at 3 V. It offers high input impedance of 10^12 Ω and reduced supply current spikes during output transitions. The component is housed in an 8-pin DIP package and provides accurate time delays in monostable mode or programmable oscillations in astable mode.

Feature Summary

• Low power consumption: 110 μA typ at VCC = 5 V
• High maximum astable frequency of 2.7 MHz
• Pin-to-pin functionally-compatible with bipolar NE555
• Wide voltage range: +2 V to +16 V

Applications

• Time delay generation
• Pulse generation
• Logic clock sources

Part Context

The TS555IN belongs to the TS555 series of single CMOS timers from STMicroelectronics. This series is characterized by its CMOS technology, which enables significantly lower power consumption compared to traditional bipolar NE555 timers while maintaining pin compatibility. The IN suffix indicates the PDIP-8 package variant, suitable for through-hole mounting.

Replacement Considerations

The TS555IN is functionally compatible with the NE555 timer. Designers replacing bipolar NE555 units can utilize the TS555IN directly due to pin-to-pin compatibility, benefiting from reduced power consumption and higher operating frequencies.