Overview
The TLC555CDR is a monolithic timing circuit fabricated using Texas Instruments' LinCMOS™ technology. This timer is fully compatible with CMOS, TTL, and MOS logic and operates at frequencies up to 2 MHz. It is known for its low power consumption and high input impedance, which allows for the use of smaller timing capacitors compared to the NE555 or LM555, resulting in more accurate time delays and oscillations. The TLC555CDR is functionally interchangeable with the NE555 and has the same pinout, making it a versatile component for various timing applications.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Frequency | Up to 2 MHz |
| Power Consumption | 1-mW typical at VDD = 5 V |
| Supply Voltage Range | 2 V to 15 V |
| Output Current Capability | Sink: 100-mA typical, Source: 10-mA typical |
| ESD Protection | Exceeds 1000 V per ANSI/ESDA/JEDEC JS-001 |
| Package Type | SOIC-8 |
| Operating Temperature Range | 0°C to 70°C |
| Trigger Level | Approximately one-third of the supply voltage |
| Threshold Level | Approximately two-thirds of the supply voltage |
Key Features
- Very low power consumption: 1-mW typical at VDD = 5 V
- Capable of operation in astable mode
- CMOS output capable of swinging rail to rail
- High output current capability: Sink 100-mA, Source 10-mA typical
- 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; has the same pinout
- ESD protection exceeds 1000 V per ANSI/ESDA/JEDEC JS-001
- Available in Q-temp automotive for high-reliability automotive applications
Applications
- Precision timing
- Pulse generation
- Sequential timing
- Time delay generation
- Pulse width modulation
- Pulse position modulation
- Linear ramp generator
Q & A
- What is the operating frequency range of the TLC555CDR? The TLC555CDR operates at frequencies up to 2 MHz.
- What is the typical power consumption of the TLC555CDR at 5V supply voltage? The typical power consumption is 1-mW at VDD = 5 V.
- What is the supply voltage range for the TLC555CDR? The supply voltage range is from 2 V to 15 V.
- Is the TLC555CDR compatible with other logic types? Yes, it is fully compatible with CMOS, TTL, and MOS logic.
- What is the ESD protection level of the TLC555CDR? The ESD protection exceeds 1000 V per ANSI/ESDA/JEDEC JS-001.
- Can the TLC555CDR be used in automotive applications? Yes, it is available in Q-temp automotive for high-reliability automotive applications.
- How does the TLC555CDR compare to the NE555 in terms of pinout? The TLC555CDR is functionally interchangeable with the NE555 and has the same pinout.
- What are the typical output current capabilities of the TLC555CDR? The typical output current capabilities are Sink: 100-mA and Source: 10-mA.
- How does the high input impedance of the TLC555CDR affect its performance? The high input impedance allows for the use of smaller timing capacitors, resulting in more accurate time delays and oscillations.
- What are some common applications of the TLC555CDR? Common applications include precision timing, pulse generation, sequential timing, time delay generation, pulse width modulation, pulse position modulation, and linear ramp generation.
