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| Part Number | 74AC240MTC | 74AC241MTC | 74AC244MTC | 74AC245MTC | 74AC240MTCX | 74AC240MTR | 74AC540MTC |
|---|---|---|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | onsemi | onsemi | Fairchild Semiconductor | STMicroelectronics | onsemi |
| Product Status | Obsolete | Obsolete | Active | Active | Obsolete | Obsolete | Obsolete |
| Logic Type | Buffer, Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Transceiver, Non-Inverting | Buffer, Inverting | Buffer, Inverting | Buffer, Inverting |
| Number of Elements | 2 | 2 | 2 | 1 | 2 | 2 | 1 |
| Number of Bits per Element | 4 | 4 | 4 | 8 | 4 | 4 | 8 |
| Input Type | - | - | - | - | - | - | - |
| Output Type | 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 |
| Voltage - Supply | 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) | -55°C ~ 125°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | 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-SOIC (0.295", 7.50mm Width) | 20-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 20-TSSOP | 20-TSSOP | 20-TSSOP | 20-TSSOP | 20-TSSOP | 20-SO | 20-TSSOP |
