Overview
The TLC556IDR, produced by Texas Instruments, is a dual LinCMOS™ timer integrated circuit. It is part of the TLC556 series, which are monolithic timing circuits fabricated using the TI LinCMOS™ process. This process ensures full compatibility with CMOS, TTL, and MOS logic, and the device operates at frequencies up to 2MHz. The TLC556IDR is known for its low power consumption and high input impedance, which allows for the use of smaller timing capacitors compared to the NE556, resulting in more accurate time delays and oscillations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC-14 | |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage Range | 2 to 15 | V |
| Typical Power Consumption at VDD = 5V | 2 mW | |
| Output Current Capability | Sink: 100mA, Source: 10mA | |
| Trigger Voltage | Approximately 1/3 of VDD | V |
| Threshold Voltage | Approximately 2/3 of VDD | V |
| Maximum Frequency | 2.1 MHz |
Key Features
- Very low power consumption: 2mW typical at VDD = 5V
- Capable of operation in astable mode
- CMOS output capable of swinging rail to rail
- High output-current capability: Sink up to 100mA, Source up to 10mA
- Output fully compatible with CMOS, TTL, and MOS logic
- Low supply current reduces spikes during output transitions
- Single-supply operation from 2V to 15V
- Functionally interchangeable with the NE556; has the same pinout
Applications
- Precision timing
- Pulse generation
- Sequential timing
- Time delay generation
- Pulse width modulation
- Pulse position modulation
- Linear ramp generator
Q & A
- What is the typical power consumption of the TLC556IDR at VDD = 5V?
The typical power consumption is 2mW at VDD = 5V.
- What is the operating temperature range for the TLC556I?
The operating temperature range for the TLC556I is -40°C to +85°C.
- What is the maximum frequency of operation for the TLC556IDR?
The maximum frequency of operation is up to 2.1 MHz.
- Is the TLC556IDR compatible with CMOS, TTL, and MOS logic?
- What is the output current capability of the TLC556IDR?
The output can sink up to 100mA and source up to 10mA.
- Can the TLC556IDR operate in astable mode?
- What is the supply voltage range for the TLC556IDR?
The supply voltage range is from 2V to 15V.
- Is the TLC556IDR functionally interchangeable with the NE556?
- What are some common applications of the TLC556IDR?
- How does the TLC556IDR reduce supply-current spikes during output transitions?
The TLC556IDR reduces supply-current spikes during output transitions due to its low supply current characteristics, minimizing the need for large decoupling capacitors.
