Overview
The LMC555IM/NOPB is a CMOS version of the industry-standard 555 series general-purpose timers, manufactured by Texas Instruments. This device is renowned for its high accuracy, low power consumption, and compact packaging. It is available in various packages, including the standard SOIC, VSSSOP, PDIP, and the industry's smallest 8-bump DSBGA package. The LMC555IM/NOPB offers the same capability of generating accurate time delays and frequencies as the LM555 but with significantly lower power dissipation and supply current spikes.
Key Specifications
| Parameter | Value |
|---|---|
| Function | General-purpose timer |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Pins | 8 |
| Operating Temperature Range (°C) | -40 to 125 |
| Supply Voltage (V) | 1.5 V ~ 15 V |
| Supply Current (typ) (mA) | 0.15 |
| Frequency | Up to 3MHz |
| Output Current Levels | -10mA, 50mA |
| Mounting Type | Surface Mount |
Key Features
- Fast astable frequency of up to 3MHz.
- Available in the industry's smallest 8-bump DSBGA package (1.43mm × 1.41mm).
- Less than 1mW typical power dissipation at 5V supply.
- 1.5V specified supply operating voltage.
- Output fully compatible with TTL and CMOS logic at 5V supply.
- Tested to -10mA, 50mA output current levels.
- Reduced supply current spikes during output transitions.
- Extremely low reset, trigger, and threshold currents.
- Excellent temperature stability.
- Pin-for-pin compatible with 555 series of timers.
- Wide supply voltage range of 2V to 15V.
- High output current capability.
Applications
The LMC555IM/NOPB is commonly used in various application areas such as:
- Pulse-width-modulated (PWM) waveforms.
- Time delay generation.
- Precision timing.
- Oscillator circuits.
- LED flashers.
- Pulse-position modulation.
- LED/photodiode sensors.
Q & A
- What is the LMC555IM/NOPB?
The LMC555IM/NOPB is a CMOS version of the industry-standard 555 series general-purpose timers, manufactured by Texas Instruments.
- What are the key features of the LMC555IM/NOPB?
Key features include fast astable frequency, low power dissipation, wide supply voltage range, high output current capability, and excellent temperature stability.
- What are the available packages for the LMC555IM/NOPB?
The device is available in SOIC, VSSSOP, PDIP, and the industry's smallest 8-bump DSBGA package.
- What is the operating temperature range of the LMC555IM/NOPB?
The operating temperature range is -40°C to 125°C.
- What is the maximum supply voltage for the LMC555IM/NOPB?
The maximum supply voltage is 15V.
- Is the LMC555IM/NOPB compatible with TTL and CMOS logic?
Yes, the output is fully compatible with TTL and CMOS logic at 5V supply.
- What are some common applications of the LMC555IM/NOPB?
Common applications include PWM waveforms, time delay generation, precision timing, oscillator circuits, LED flashers, and LED/photodiode sensors.
- What is the typical power dissipation of the LMC555IM/NOPB at 5V supply?
The typical power dissipation is less than 1mW at 5V supply.
- Is the LMC555IM/NOPB pin-for-pin compatible with other 555 series timers?
Yes, it is pin-for-pin compatible with the 555 series of timers.
- What is the maximum output current capability of the LMC555IM/NOPB?
The device is tested to -10mA, 50mA output current levels.
