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| Part Number | MM74HCT240MTCX | MM74HCT244MTCX | MM74HCT540MTCX | MM74HCT245MTCX | MM74HC240MTCX | MM74HCT240MTC |
|---|---|---|---|---|---|---|
| Manufacturer | onsemi | onsemi | onsemi | onsemi | onsemi | Fairchild Semiconductor |
| Product Status | Active | Active | Active | Active | Active | Active |
| Logic Type | Buffer, Inverting | Buffer, Non-Inverting | Buffer, Inverting | Transceiver, Non-Inverting | Buffer, Inverting | Buffer, Inverting |
| Number of Elements | 2 | 2 | 1 | 1 | 2 | 2 |
| Number of Bits per Element | 4 | 4 | 8 | 8 | 4 | 4 |
| Input Type | - | - | - | - | - | - |
| Output Type | 3-State | 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 | 7.2mA, 7.2mA |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 2V ~ 6V | 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) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 20-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 20-TSSOP | 20-TSSOP | 20-TSSOP | 20-TSSOP | 20-TSSOP | 20-TSSOP |
