TS555ID

Overview

The TS555ID is a single-channel CMOS timer manufactured by STMicroelectronics, designed as a low-power alternative to bipolar NE555 timers. It operates within a supply voltage range of +2V to +16V and features a typical supply current of 110 μA at 5V. The device supports high-frequency operation up to 2.7 MHz with accurate timing in both monostable and astable modes. It utilizes an SOIC-8 surface-mount package and offers extended industrial temperature performance from -40°C to +125°C. Key electrical characteristics include a maximum propagation delay of 100 ns, a high-level output current of 50 mA, and a low-level output current of -10 mA.

Feature Summary

• Low power consumption: 110 μA typ at VCC = 5V
• High frequency operation up to 2.7 MHz
• Wide supply voltage range: +2V to +16V
• Extended temperature range: -40°C to +125°C

Applications

• Time delay generation in monostable mode
• Programmable oscillation in astable mode
• Logic clock sources
• Sequence timing circuits

Procurement Notes

Verify the specific suffix 'ID' indicates the industrial temperature grade (-40°C to +125°C) and SOIC-8 package. Confirm current availability status as some variants in this series may be discontinued or subject to long lead times. Ensure compatibility with existing PCB footprints for SOIC-8 components during procurement planning.

Selection Notes

Select the TS555ID over bipolar counterparts when lower power consumption and higher operating frequencies are required. The CMOS technology allows for smaller timing capacitors due to high input impedance (10^12 Ω). Verify that the application environment falls within the -40°C to +125°C range to utilize the full benefits of the industrial grade variant.

Part Context

The TS555ID belongs to the TS555 family of single CMOS timers. It is functionally pin-to-pin compatible with the standard bipolar NE555 but offers superior power efficiency and speed. The 'I' suffix denotes the industrial temperature range, while 'D' specifies the SOIC-8 plastic SMD package.

Replacement Considerations

The TS555CD is a commercial grade alternative with a 0°C to +70°C range. For direct replacements, consider other TS555 variants or generic CMOS 555 timers, ensuring voltage and temperature specifications match the design requirements.