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| Part Number | 74HCT640D,652 | 74HCT640N,652 | 74HCT640D,653 | 74HCT646D,652 | 74HCT540D,652 |
|---|---|---|---|---|---|
| Manufacturer | NXP USA Inc. | NXP USA Inc. | NXP USA Inc. | NXP USA Inc. | Nexperia USA Inc. |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Logic Type | Transceiver, Inverting | Transceiver, Inverting | Transceiver, Inverting | Transceiver, Non-Inverting | Buffer, Inverting |
| Number of Elements | 1 | 1 | 1 | 1 | 1 |
| Number of Bits per Element | 8 | 8 | 8 | 8 | 8 |
| Input Type | - | - | - | - | - |
| Output Type | 3-State | 3-State | 3-State | 3-State | 3-State |
| Current - Output High, Low | 6mA, 6mA | 6mA, 6mA | 6mA, 6mA | 6mA, 6mA | 6mA, 6mA |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount | Through Hole | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | 20-DIP (0.300", 7.62mm) | 20-SOIC (0.295", 7.50mm Width) | 24-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SO | 20-DIP | 20-SO | 24-SO | 20-SO |
