| Part Number | LM556CM | LM556CMX | 
|---|---|---|
| Manufacturer | Fairchild Semiconductor | Texas Instruments | 
| Category | Clock/Timing - Programmable Timers and Oscillators | Clock/Timing - Programmable Timers and Oscillators | 
| 
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| Product Status | Obsolete | Obsolete | 
| Type | 555 Type, Timer/Oscillator (Dual) | 555 Type, Timer/Oscillator (Dual) | 
| Count | - | - | 
| Frequency | - | - | 
| Voltage - Supply | 4.5V ~ 16V | 4.5V ~ 16V | 
| Current - Supply | 30 mA | 10 mA | 
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | 14-SOIC (0.154", 3.90mm Width) | 
| Supplier Device Package | 14-SOIC | 14-SOIC | 
| Mounting Type | Surface Mount | Surface Mount |