The LMC555 is a CMOS version of the industry standard 555 series general-purpose timers. In addition to the standard package (SOIC, MSOP, and MDIP) the LMC555 is also available in a chip-sized package (8 Bump micro SMD) using National’s micro SMD package technology.
The LMC555 offers the same capability of generating accurate time delays and frequencies as the LM555 but with much lower power dissipation and supply current spikes. When operated as a one-shot, the time delay is precisely controlled by a single external resistor and capacitor. In the stable mode, the oscillation frequency and duty cycle are accurately set by two external resistors and one capacitor.
LMC555 Pinout
LMC555 Pin Configuration
| Pin No | Pin Name | Description |
|---|---|---|
| 1 | GND | Ground Pin |
| 2 | TRIGGER | Trigger Pin |
| 3 | OUT | Output Pin |
| 4 | RESET | Reset Pin |
| 5 | CONTROL VOLTAGE | Voltage Control Pin |
| 6 | THRESHOLD | Threshold Pin |
| 7 | DISCHARGE | Discharge Pin |
| 8 | VCC | Supply Voltage Pin |
LMC555 Features
- Less than 1 mw typical power dissipation at 5V supply
- A stable frequency capability is 3 MHz
- Supply operating voltage guaranteed is 1.5V
- Output fully compatible with TTL and CMOS logic at 5V supply
- Tested to −10 mA, +50 mA output current levels
- Reduced supply current spikes during output transitions
- Extremely low reset, trigger, and threshold currents
- Excellent temperature stability
Application
- Precision Timing
- Pulse Generation
- Sequential Timing
- Time Delay Generation
- Pulse Width Modulation
- Pulse Position Modulation
- Linear Ramp Generators
You can download this datasheet for LMC555 CMOS 555 Timer – Datasheet from the link given below:
