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| Part Number | MM74HC244N | MM74HCT244N | MM74C244N | MM74HC240N | MM74HC241N | MM74HC243N |
|---|---|---|---|---|---|---|
| Manufacturer | onsemi | Fairchild Semiconductor | onsemi | Fairchild Semiconductor | National Semiconductor | National Semiconductor |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Active |
| Logic Type | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting |
| Number of Elements | 2 | 2 | 2 | 2 | 2 | 2 |
| Number of Bits per Element | 4 | 4 | 4 | 4 | 4 | 4 |
| Input Type | - | - | - | - | - | - |
| Output Type | 3-State | 3-State | 3-State | 3-State | 3-State | - |
| Current - Output High, Low | 7.8mA, 7.8mA | 7.2mA, 7.2mA | 70mA, 70mA | 7.8mA, 7.8mA | 7.8mA, 7.8mA | - |
| Voltage - Supply | 2V ~ 6V | 4.5V ~ 5.5V | 3V ~ 15V | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -55°C ~ 125°C (TA) | -40°C ~ 85°C (TA) | -55°C ~ 125°C (TA) | - |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | 20-DIP (0.300", 7.62mm) | 20-DIP (0.300", 7.62mm) | 20-DIP (0.300", 7.62mm) | 20-DIP (0.300", 7.62mm) | 20-DIP (0.300", 7.62mm) | 20-DIP (0.300", 7.62mm) |
| Supplier Device Package | 20-PDIP | 20-PDIP | 20-PDIP | 20-PDIP | 20-PDIP | 20-PDIP |
