TLC555CP

Programmable Timers And Oscillators Overview

The TLC555CP is a single LinCMOS timer manufactured by Texas Instruments, designed for low-power timing applications. It operates on a single supply voltage ranging from 2V to 15V with a typical supply current of 250µA at 5V. The device supports frequencies up to 2.1MHz and features rail-to-rail CMOS output capable of sourcing 10mA and sinking 100mA. Packaged in an 8-pin PDIP, it functions as a drop-in replacement for the NE555 while offering significantly lower power consumption and higher input impedance.

Programmable Timers And Oscillators Feature Summary

• Low Power Consumption: Typical supply current of 250µA at 5V, reducing power dissipation to approximately 1mW.
• High Output Drive: Capable of sinking 100mA and sourcing 10mA, allowing direct drive of relays or LEDs.
• Wide Voltage Range: Operates effectively from 2V to 15V single supply.
• Pin Compatibility: Functionally and pinout-compatible with standard bipolar 555 timers like the NE555.

Programmable Timers And Oscillators Applications

• Precision timing circuits and pulse generation
• Time delay and sequential timing applications
• Pulse width modulation (PWM) controllers
• Linear ramp generators

Programmable Timers And Oscillators Procurement Notes

Verify the package type matches the design requirements, as the TLC555 series includes surface-mount variants such as the CDR (SOIC). Confirm that the commercial grade temperature range of 0°C to 70°C meets the operational environment specifications. Ensure the 8-pin DIP footprint aligns with the PCB layout constraints before finalizing procurement.

Programmable Timers And Oscillators Selection Notes

Select the TLC555CP when low static current is critical compared to bipolar alternatives. The high input impedance allows for smaller timing capacitors than those required by NE555 equivalents, facilitating more precise time delays. Verify that the 100mA sink capability suffices for the load; if higher source current is needed, consider bipolar options.

Programmable Timers And Oscillators Part Context

The TLC555CP belongs to the LinCMOS family of timers from Texas Instruments. This series utilizes a specialized CMOS process to achieve performance characteristics similar to bipolar 555 timers but with drastically reduced power usage. It serves as the commercial-grade, through-hole variant within the broader TLC555 product line.

Programmable Timers And Oscillators Replacement Considerations

The TLC555CP is functionally interchangeable with the NE555, LM555, and other standard 555 timers due to identical pinouts and logic levels. For automotive applications requiring extended temperature ranges, the TLC555Q series is the appropriate alternative.