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| PartNumber | NA556D | NA556DG4 | NA556 |
| Description | Timers & Support Products Dual Prec Timers | Timers & Support Products Dual Prec Timers | |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Timers & Support Products | Timers & Support Products | Clock/Timing - Programmable Timers and Oscillators |
| RoHS | Y | Y | - |
| Series | NA556 | NA556 | NA556 |
| Type | Standard | Standard | 555 Type, Timer/Oscillator (Dual) |
| Number of Internal Timers | 2 Timer | 2 Timer | 2 Timer |
| Supply Voltage Max | 16 V | 16 V | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 105 C | + 105 C | + 105 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOIC-14 | SOIC-14 | - |
| Packaging | Tube | Tube | Tube Alternate Packaging |
| Height | 1.58 mm | 1.58 mm | - |
| Length | 8.65 mm | 8.65 mm | - |
| Width | 3.91 mm | 3.91 mm | - |
| Brand | 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 | 4000 uA | 4000 uA | 4000 uA |
| Product Type | Timers & Support Products | Timers & Support Products | - |
| Factory Pack Quantity | 50 | 50 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | - |
| Unit Weight | 0.004564 oz | 0.004564 oz | 0.004564 oz |
| Package Case | - | - | SOIC-14 |
| Frequency | - | - | - |
| Operating Temperature | - | - | -40°C ~ 105°C |
| Mounting Type | - | - | Surface Mount |
| Voltage Supply | - | - | 4.5 V ~ 16 V |
| Supplier Device Package | - | - | 14-SOIC |
| Current Supply | - | - | 20mA |
| Count | - | - | - |
| Supply Voltage Max | - | - | 16 V |
| Supply Voltage Min | - | - | 4.5 V |