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| Part Number | SN74AUCH240RGYR | SN74AUCH244RGYR | SN74AUCH245RGYR | SN74AUC240RGYR | 
|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | 
| Product Status | Obsolete | Active | Active | Active | 
| Logic Type | Buffer, Inverting | Buffer, Non-Inverting | Transceiver, Non-Inverting | Buffer, Inverting | 
| Number of Elements | 2 | 2 | 1 | 2 | 
| Number of Bits per Element | 4 | 4 | 8 | 4 | 
| Input Type | - | - | - | - | 
| Output Type | 3-State | 3-State | 3-State | 3-State | 
| Current - Output High, Low | 9mA, 9mA | 9mA, 9mA | 9mA, 9mA | 9mA, 9mA | 
| Voltage - Supply | 0.8V ~ 2.7V | 0.8V ~ 2.7V | 0.8V ~ 2.7V | 0.8V ~ 2.7V | 
| Operating Temperature | -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 | 
| Package / Case | 20-VFQFN Exposed Pad | 20-VFQFN Exposed Pad | 20-VFQFN Exposed Pad | 20-VFQFN Exposed Pad | 
| Supplier Device Package | 20-VQFN (3.5x4.5) | 20-VQFN (3.5x4.5) | 20-VQFN (3.5x4.5) | 20-VQFN (3.5x4.5) |