TLC556CN

Overview

The TLC556CN is a dual timer integrated circuit from Texas Instruments, belonging to the LinCMOS family. It integrates two independent 555-type timers within a single 14-pin DIP package. The device operates on a supply voltage range of 3V to 18V and supports a maximum frequency of 2MHz. Key electrical specifications include a maximum low-level output current of 100mA and a maximum high-level output current of -10mA. The component is designed for standard timing applications with an operating temperature range extending from -40°C to +85°C.

Feature Summary

• Dual timer configuration integrating two independent 555-type oscillators in one package
• LinCMOS technology enabling operation across a wide supply voltage range of 3V to 18V
• High drive capability with a maximum low-level output current of 100mA
• Standard 14-pin PDIP (Plastic Dual In-line Package) for through-hole mounting

Applications

• General-purpose pulse generation and timing circuits
• Sequential timing events requiring dual independent channels
• DC-AC conversion and tone generation systems

Part Context

The TLC556CN is part of the broader TLC556 series, which includes variants such as the CD, ID, and MD suffixes indicating different packaging or temperature grades. While the NE556 offers similar functionality, it utilizes bipolar technology with higher supply current requirements compared to the low-power CMOS architecture of the TLC556 series.

Replacement Considerations

Direct pin-compatible replacements include the NE556N and SN75556N. When substituting, verify that the alternative component's supply current and output drive capabilities meet the specific circuit requirements, as bipolar alternatives may draw significantly more quiescent current.