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| Part Number | MM74HCT240N | MM74HCT540N | MM74HCT244N | MM74HCT241N | MM74HCT245N | MM74HC240N |
|---|---|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor | National Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor |
| Product Status | Obsolete | Obsolete | Obsolete | Active | Obsolete | Obsolete |
| Logic Type | Buffer, Inverting | Buffer, Inverting | Buffer, Non-Inverting | - | Transceiver, Non-Inverting | Buffer, Inverting |
| Number of Elements | 2 | 1 | 2 | - | 1 | 2 |
| Number of Bits per Element | 4 | 8 | 4 | - | 8 | 4 |
| Input Type | - | - | - | - | - | - |
| Output Type | 3-State | 3-State | 3-State | - | 3-State | 3-State |
| Current - Output High, Low | 7.2mA, 7.2mA | 7.2mA, 7.2mA | 7.2mA, 7.2mA | - | 7.2mA, 7.2mA | 7.8mA, 7.8mA |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | - | 4.5V ~ 5.5V | 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) |
| Mounting Type | 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) |
| Supplier Device Package | 20-PDIP | 20-PDIP | 20-PDIP | - | 20-PDIP | 20-PDIP |
