TLC556CDG4

Overview

The TLC556CDG4 is a dual timer integrated circuit manufactured by Texas Instruments, belonging to the LinCMOS family. It integrates two independent 555-type timers within a single 14-pin SOIC package. 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, a high-level output current of 100 mA, and a low-level output current of -10 mA. The component is designed for surface-mount installation and functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Dual Timer Configuration: Integrates two independent 555-type timers in one package.
• LinCMOS Technology: Provides low power consumption while maintaining compatibility with standard logic families.
• Wide Supply Voltage Range: Operates reliably from 2 V to 15 V.
• High Drive Capability: Supports a high-level output current of 100 mA.

Applications

• Timing and pulse generation circuits
• Sequential timing events
• Time delay applications

Procurement Notes

Verify the RoHS compliance status and specific packaging details (tube) against the latest manufacturer documentation before procurement. Confirm that the 'G4' suffix denotes lead-free and rohs compliant construction as per Texas Instruments standards. Ensure the SOIC-14 footprint matches the design layout requirements.

Selection Notes

Select the TLC556CDG4 when dual independent timers are required in a compact surface-mount form factor. Compare against the industrial grade variant (TLC556IDG4) if operation below 0°C or above 70°C is necessary. Verify that the 2.1 MHz maximum frequency meets the timing resolution needs of the application.

Part Context

The TLC556CDG4 is part of the broader TLC556 series of dual CMOS timers. It serves as the commercial-grade, lead-free version of the TLC556CD. This component is functionally equivalent to other dual 555 timer ICs but offers specific advantages in power efficiency and drive capability due to its LinCMOS architecture.

Replacement Considerations

The TLC556IDG4 is a verified substitute offering extended industrial temperature ratings (-40°C to +85°C). Other generic dual 555 timer ICs may require pinout verification and electrical parameter comparison to ensure compatibility.