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LMC555 CMOS Timer
LMC555
Texas Instrumentsic logic timer
The LMC555 CMOS Timer is a general-purpose timer that can operate in monostable and astable modes, providing accurate time delays and frequencies with low power consumption.
In stock
Specifications
8- Operating Voltage
- 1.5V, 5V, 12V
- Supply Current
- 130-400µA (VS=1.5/5/12V) µA
- Interface
- GPIO, PWM
- Resolution
- Not specified
- Range
- Astable frequency: 4.0-5.6kHz (VS=12V) kHz
- Accuracy
- Timing accuracy: 0.9-1.25ms, Timing shift with supply: ±3%/V, Timing shift with temperature: ±75ppm/°C
- Temperature Range
- -40°C to 85°C (LMC555CM, MM, N, TP)
- Package
- SOIC-8, VSSOP-8, PDIP-8, DSBGA-8
Pinout
8| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | RESET | GPIO | Negative pulse applied to disable or reset the timer. |
| 2 | TRIGGER | GPIO | Input for triggering the timer in monostable mode. |
| 3 | OUTPUT | GPIO | Output driven waveform. |
| 4 | THRESHOLD | GPIO | Input for threshold comparison in astable mode. |
| 5 | C1 | GPIO | Input control voltage to modulate the output waveform. |
| 6 | B1 | GPIO | Input for threshold comparison in astable mode. |
| 7 | A1 | GPIO | Open collector output that discharges a capacitor between intervals. |
| 8 | V+ | POWER | Supply voltage with respect to ground. |
Interactive pinout
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LMC555
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