| PartNumber | LM556CN/NOPB | LM556CMX | LM556CM/NOPB |
| Description | Timers & Support Products DUAL TIMER | Timers & Support Products Dual Timer 14-SOIC 0 to 70 | Timers & Support Products Dual Timer |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Timers & Support Products | Timers & Support Products | Timers & Support Products |
| RoHS | Y | N | Y |
| Series | LM556 | LM556 | LM556 |
| Type | Standard | Standard | Standard |
| Number of Internal Timers | 2 Timer | 2 Timer | 2 Timer |
| Supply Voltage Max | 16 V | 5 V | 16 V |
| Supply Voltage Min | 4.5 V | 4.5 V | 4.5 V |
| Minimum Operating Temperature | - 40 C | 0 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 70 C | + 85 C |
| Mounting Style | Through Hole | SMD/SMT | SMD/SMT |
| Package / Case | PDIP-14 | SOIC-14 | SOIC-14 |
| Packaging | Tube | Reel | Tube |
| Height | 3.3 mm | 1.45 mm | 1.45 mm |
| Length | 19.05 mm | 8.64 mm | 8.64 mm |
| Width | 6.35 mm | 3.91 mm | 3.91 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| High Level Output Current | 200 mA | 200 mA | 200 mA |
| Low Level Output Current | - 200 mA | - 200 mA | - 200 mA |
| Operating Supply Current | 3000 uA | 3000 uA | 3000 uA |
| Pd Power Dissipation | 1620 mW | 410 mW | 410 mW |
| Product Type | Timers & Support Products | Timers & Support Products | Timers & Support Products |
| Factory Pack Quantity | 25 | 2500 | 55 |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | Clock & Timer ICs |
| Unit Weight | 0.057144 oz | 0.004515 oz | 0.004515 oz |