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| Part Number | KA556I | KA555I | KA556 | 
|---|---|---|---|
| Manufacturer | onsemi | onsemi | onsemi | 
| Product Status | Obsolete | Obsolete | Obsolete | 
| Type | 555 Type, Timer/Oscillator (Dual) | 555 Type, Timer/Oscillator (Single) | 555 Type, Timer/Oscillator (Dual) | 
| Count | - | - | - | 
| Frequency | - | - | - | 
| Voltage - Supply | 4.5V ~ 16V | 4.5V ~ 16V | 4.5V ~ 16V | 
| Current - Supply | 16 mA | 7.5 mA | 16 mA | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C | 
| Package / Case | 14-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) | 14-DIP (0.300", 7.62mm) | 
| Supplier Device Package | 14-MDIP | 8-DIP | 14-MDIP | 
| Mounting Type | Through Hole | Through Hole | Through Hole |