Overview
The TLC555CD is a monolithic timing circuit fabricated using Texas Instruments' LinCMOS™ technology. This device is fully compatible with CMOS, TTL, and MOS logic and operates at frequencies up to 2 MHz. It is designed to provide low power consumption across a wide range of power-supply voltages, from 2 V to 15 V. The TLC555CD is functionally interchangeable with the NE555 and has the same pinout, making it a versatile choice for various timing and oscillation applications. Despite being obsolete and no longer in production, it remains a significant component in existing designs and educational contexts.
Key Specifications
| Specification | Value |
|---|---|
| Operating Frequency | Up to 2 MHz |
| Power Supply Voltage | 2 V to 15 V |
| Power Consumption | 1 mW typical at VDD = 5 V |
| Output Current Capability | Sink: 100 mA typical, Source: 10 mA typical |
| Trigger Level | Approximately one-third of the supply voltage |
| Threshold Level | Approximately two-thirds of the supply voltage |
| Package Type | 8-Pin SOIC (D) |
| Operating Temperature Range | 0°C to 70°C |
| ESD Protection | Exceeds 1000 V per ANSI/ESDA/JEDEC JS-001 |
Key Features
- Very low power consumption: 1 mW typical at VDD = 5 V
- Capable of operating in astable mode
- CMOS output capable of rail-to-rail swing
- High output current capability: Sink 100 mA, Source 10 mA
- Output fully compatible with CMOS, TTL, and MOS logic
- Low supply current reduces spikes during output transitions
- Single-supply operation from 2 V to 15 V
- Functionally interchangeable with the NE555; same pinout
- ESD protection exceeds 1000 V per ANSI/ESDA/JEDEC JS-001
- Available in Q-temp automotive grade for high-reliability automotive applications
Applications
The TLC555CD is suitable for a wide range of applications, including:
- Timing and oscillation circuits
- Astable and monostable multivibrators
- Pulse generation and shaping
- Sequential timing and logic circuits
- High-reliability automotive applications due to its Q-temp automotive grade
- Educational projects and prototyping where compatibility with NE555 is beneficial
Q & A
- What is the operating frequency range of the TLC555CD?
The TLC555CD operates at frequencies up to 2 MHz. - What is the power supply voltage range for the TLC555CD?
The power supply voltage range is from 2 V to 15 V. - How much power does the TLC555CD typically consume at 5 V?
The TLC555CD typically consumes 1 mW at VDD = 5 V. - What is the output current capability of the TLC555CD?
The output current capability is 100 mA sink and 10 mA source. - Is the TLC555CD compatible with other logic families?
Yes, it is fully compatible with CMOS, TTL, and MOS logic. - What is the trigger level of the TLC555CD?
The trigger level is approximately one-third of the supply voltage. - What is the threshold level of the TLC555CD?
The threshold level is approximately two-thirds of the supply voltage. - What type of package is the TLC555CD available in?
The TLC555CD is available in an 8-Pin SOIC (D) package. - Does the TLC555CD have ESD protection?
Yes, it exceeds 1000 V per ANSI/ESDA/JEDEC JS-001. - Is the TLC555CD suitable for automotive applications?
Yes, it is available in Q-temp automotive grade for high-reliability automotive applications.
