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| Part Number | 74AC240SC | 74AC241SC | 74AC240SJ | 74ACQ240SC | 74AC240SCX | 74AC540SC | 74AC244SC | 74AC245SC | 74AC240PC |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | onsemi | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor | onsemi | onsemi | onsemi | onsemi | Fairchild Semiconductor |
| Product Status | Obsolete | Obsolete | Active | Obsolete | Active | Active | Active | Obsolete | Obsolete |
| Logic Type | Buffer, Inverting | Buffer, Non-Inverting | Buffer, Inverting | Buffer, Inverting | Buffer, Inverting | - | Buffer, Non-Inverting | Transceiver, Non-Inverting | Buffer, Inverting |
| Number of Elements | 2 | 2 | 2 | 2 | 2 | - | 2 | 1 | 2 |
| Number of Bits per Element | 4 | 4 | 4 | 4 | 4 | - | 4 | 8 | 4 |
| Input Type | - | - | - | - | - | - | - | - | - |
| Output Type | 3-State | 3-State | 3-State | 3-State | 3-State | - | 3-State | 3-State | 3-State |
| Current - Output High, Low | 24mA, 24mA | 24mA, 24mA | 24mA, 24mA | 24mA, 24mA | 24mA, 24mA | - | 24mA, 24mA | 24mA, 24mA | 24mA, 24mA |
| Voltage - Supply | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V | - | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | - | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | - | Surface Mount | Surface Mount | Through Hole |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.209", 5.30mm Width) | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | - | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | 20-DIP (0.300", 7.62mm) |
| Supplier Device Package | 20-SOIC | 20-SOIC | 20-SOP | 20-SOIC | 20-SOIC | - | 20-SOIC | 20-SOIC | 20-PDIP |
