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| Part Number | 74ACTQ244SC | 74ACTQ244SJ | 74ACTQ245SC | 74ACTQ244SCX | 74ACT244SC | 74ACTQ240SC | 74ACTQ241SC | 74ACTQ244PC | 74ACTQ244QSC |
|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | onsemi | Fairchild Semiconductor | onsemi | onsemi | onsemi | Fairchild Semiconductor | National Semiconductor | onsemi | onsemi |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Active | Obsolete | Active | Obsolete | Obsolete |
| Logic Type | Buffer, Non-Inverting | Buffer, Non-Inverting | Transceiver, Non-Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Inverting | - | Buffer, Non-Inverting | Buffer, Non-Inverting |
| Number of Elements | 2 | 2 | 1 | 2 | 2 | 2 | - | 2 | 2 |
| Number of Bits per Element | 4 | 4 | 8 | 4 | 4 | 4 | - | 4 | 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 | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | - | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| 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 | - | Through Hole | Surface Mount |
| Package / Case | 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) | 20-LSSOP (0.154", 3.90mm Width) |
| Supplier Device Package | 20-SOIC | 20-SOP | 20-SOIC | 20-SOIC | 20-SOIC | 20-SOIC | - | 20-PDIP | 20-QSOP |
