TLC551CD

Programmable Timers And Oscillators Overview

The TLC551CD is a single CMOS timer manufactured by Texas Instruments, belonging to the LinCMOS family. It operates within a supply voltage range of 1 V to 15 V and supports output types including CMOS, MOS, and TTL. The device features a high-level output current of 100 mA and a low-level output current of -10 mA, with a typical operating supply current of 170 µA. Designed for surface-mount applications, it is housed in an SOIC-8 package and functions reliably across a temperature range of 0°C to +70°C.

Programmable Timers And Oscillators Feature Summary

• LinCMOS technology enabling low power consumption (170 µA) and wide supply voltage operation (1 V to 15 V).
• High drive capability with 100 mA source and -10 mA sink output currents.
• Compatible with CMOS, MOS, and TTL logic families for versatile interfacing.

Programmable Timers And Oscillators Applications

• Timing and pulse generation circuits.
• Delay generation applications.
• Waveform generation systems.

Programmable Timers And Oscillators Procurement Notes

Verify the specific manufacturer part number against official Texas Instruments documentation to ensure authenticity. Confirm that the SOIC-8 package matches the design requirements. Check RoHS compliance status through the provided datasheet links. Ensure the operating temperature range of 0°C to +70°C aligns with the intended environmental conditions.

Programmable Timers And Oscillators Selection Notes

Select the TLC551CD when a single timer with low quiescent current and high output drive is required. The 1 V minimum supply voltage makes it suitable for battery-powered applications compared to standard 555 timers requiring higher voltages. The SOIC-8 package is appropriate for surface-mount assembly processes. Verify that the 100 mA output current meets the load requirements of the connected circuitry.

Programmable Timers And Oscillators Part Context

The TLC551CD is part of the TLC55x series from Texas Instruments, which includes single (TLC551), dual (TLC552), and quad (TLC554) timer variants. This series utilizes LinCMOS technology to offer improved performance over traditional bipolar 555 timers, particularly in terms of power consumption and supply voltage flexibility. The 'CD' suffix indicates the commercial temperature grade and SOIC-8 packaging.

Programmable Timers And Oscillators Replacement Considerations

Direct pin-compatible replacements within the same family include the TLC551DR (tape and reel version). Other CMOS 555 timers such as the LMC555 or TLC555 may serve as functional alternatives if package or supply voltage differences are acceptable.