Overview
The LMC555CM/NOPB is a CMOS version of the industry-standard 555 series general-purpose timers, designed and manufactured by Texas Instruments. This device offers enhanced performance and lower power consumption compared to its bipolar counterparts. It is available in various packages, including SOIC, VSSSOP, PDIP, and the industry's smallest 8-bump DSBGA package. The LMC555CM/NOPB is pin-for-pin compatible with the 555 series of timers, making it a versatile and flexible option for a wide range of timing applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (Min) | 1.5 | V |
| Supply Voltage (Max) | 15 | V |
| Operating Temperature Range | -40 to 125, -40 to 85 | °C |
| Maximum Astable Frequency | 3 | MHz |
| Typical Power Dissipation at 5V | < 1 | mW |
| Output Current Levels | -10mA, 50mA | mA |
| Package Types | SOIC, VSSSOP, PDIP, 8-bump DSBGA | |
| Pin Count | 8 |
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
Applications
- Precision timing
- Pulse generation
- Sequential timing
- Time delay generation
- Pulse width modulation
- Pulse position modulation
- Linear ramp generators
- Timing circuits in electronic devices
- Counters and counters/timers
- Frequency synthesizers
- Auxiliary timing sources
- Consumer electronics
- Automotive systems
- Industrial control systems
- Aerospace and defense systems
Q & A
- Q: What is the LMC555CM/NOPB?
The LMC555CM/NOPB is a precision timer IC designed by Texas Instruments, offering improved precision and low power consumption compared to the classic 555 timer IC.
- Q: What are the key features of the LMC555CM/NOPB?
The key features include high accuracy and stability, low power consumption, wide operating temperature range, and simplicity in use and configuration.
- Q: What are the different modes of operation for the LMC555CM/NOPB?
The LMC555CM/NOPB can operate in both monostable (one-shot) and astable (free-running) modes.
- Q: What is the maximum frequency of operation for the LMC555CM/NOPB?
The LMC555CM/NOPB can operate at frequencies up to 3MHz.
- Q: Can the LMC555CM/NOPB be used in automotive applications?
- Q: What are the package options available for the LMC555CM/NOPB?
The LMC555CM/NOPB is available in SOIC, VSSSOP, PDIP, and 8-bump DSBGA packages.
- Q: How does the LMC555CM/NOPB compare to the LM555?
The LMC555CM/NOPB offers the same capability of generating accurate time delays and frequencies as the LM555 but with much lower power dissipation and supply current spikes.
- Q: What are the typical power dissipation levels for the LMC555CM/NOPB?
The LMC555CM/NOPB has a typical power dissipation of less than 1mW at 5V supply.
- Q: Is the LMC555CM/NOPB compatible with TTL and CMOS logic?
- Q: What are the advantages of using the LMC555CM/NOPB in battery-powered devices?
The LMC555CM/NOPB offers low power consumption, making it an ideal choice for battery-powered and portable applications.
