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| Part Number | SN74AC240DBR | SN74AC245DBR | SN74AC240DWR | SN74AC244DBR | SN74AC241DBR | SN74ACT240DBR | 
|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | 
| Product Status | Active | Active | Active | Active | Active | Active | 
| Logic Type | Buffer, Inverting | Transceiver, Non-Inverting | Buffer, Inverting | Buffer, Non-Inverting | Buffer, Non-Inverting | Buffer, Inverting | 
| Number of Elements | 2 | 1 | 2 | 2 | 2 | 2 | 
| Number of Bits per Element | 4 | 8 | 4 | 4 | 4 | 4 | 
| Input Type | - | - | - | - | - | - | 
| Output Type | 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 | 
| Voltage - Supply | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V | 2V ~ 6V | 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-SSOP (0.209", 5.30mm Width) | 20-SSOP (0.209", 5.30mm Width) | 20-SOIC (0.295", 7.50mm Width) | 20-SSOP (0.209", 5.30mm Width) | 20-SSOP (0.209", 5.30mm Width) | 20-SSOP (0.209", 5.30mm Width) | 
| Supplier Device Package | 20-SSOP | 20-SSOP | 20-SOIC | 20-SSOP | 20-SSOP | 20-SSOP |