| PartNumber | LMC555CMM | LMC555CM | LMC555CM/NOPB |
| Description | Timers & Support Products NRND, alternate is LMC555CMM/NOPB | Timers & Support Products CMOS Timer | Timers & Support Products CMOS Timer |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Timers & Support Products | Timers & Support Products | Timers & Support Products |
| RoHS | N | N | Y |
| Series | LMC555 | LMC555 | LMC555 |
| Type | Standard | Standard | Standard |
| Number of Internal Timers | 1 Timer | 1 Timer | 1 Timer |
| Supply Voltage Max | 15 V | 15 V | 15 V |
| Supply Voltage Min | 1.5 V | 1.5 V | 1.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | VSSOP-8 | SOIC-8 | SOIC-8 |
| Packaging | Reel | Tube | Tube |
| Height | 0.86 mm | 1.45 mm | 1.45 mm |
| Length | 3 mm | 4.9 mm | 4.9 mm |
| Width | 3 mm | 3.9 mm | 3.9 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Propagation Delay Max | 100 ns (Typ) | 100 ns (Typ) | 100 ns (Typ) |
| High Level Output Current | 50 mA | 50 mA | 50 mA |
| Low Level Output Current | - 10 mA | - 10 mA | - 10 mA |
| Operating Supply Current | 50 uA | 50 uA | 50 uA |
| Pd Power Dissipation | 555 mW | 740 mW | 740 mW |
| Product Type | Timers & Support Products | Timers & Support Products | Timers & Support Products |
| Factory Pack Quantity | 1000 | 95 | 95 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Unit Weight | 0.001058 oz | 0.002677 oz | 0.002677 oz |