TLC556IDRG4

Overview

The TLC556IDRG4 is a dual CMOS timer integrated circuit manufactured by Texas Instruments. It integrates two independent LinCMOS timers within a single SOIC-14 package, designed for low-power applications. The device operates on a supply voltage range of 2 V to 15 V and supports output types compatible with CMOS, MOS, and TTL logic families. Key electrical specifications include a maximum frequency of 2.1 MHz and a high-level output current capability of 100 mA. It functions reliably across an extended industrial temperature range from -55°C to +125°C.

Feature Summary

• Dual timer configuration in a compact SOIC-14 surface-mount package
• Wide operating supply voltage range from 2 V to 15 V
• High drive capability with 100 mA high-level output current
• Extended temperature range operation from -55°C to +125°C

Applications

• General-purpose timing and pulse generation circuits
• Low-power digital logic interfacing requiring CMOS/TTL compatibility
• Industrial control systems operating in extreme temperature environments

Procurement Notes

Verify the specific suffix 'RG4' against the manufacturer's official documentation to confirm RoHS compliance status and lead-free manufacturing details. Ensure the SOIC-14 package dimensions match the target PCB footprint requirements before integration into the design.

Selection Notes

Select this component when dual independent timers are required in a space-constrained design. The 2.1 MHz frequency limit defines the maximum operational speed for timing cycles. Consider the 100 mA output current for direct driving of loads without additional buffering stages.

Part Context

This part belongs to the TLC556 series of dual LinCMOS timers. It serves as a complementary solution to single-timer variants like the TLC551, offering higher integration density. The device is part of Texas Instruments' broader portfolio of analog and signal processing ICs aimed at industrial and consumer electronics markets.

Replacement Considerations

The TLC556IDR is a pin-compatible alternative within the same family. Verify if the non-RG4 suffix meets environmental compliance requirements for the intended application.