| Part Number | DM74AS640N | DM74AS645N |
|---|---|---|
| Manufacturer | Fairchild Semiconductor | onsemi |
| Category | Logic - Buffers, Drivers, Receivers, Transceivers | Logic - Buffers, Drivers, Receivers, Transceivers |
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| Product Status | Obsolete | Obsolete |
| Logic Type | Transceiver, Inverting | Transceiver, Non-Inverting |
| Number of Elements | 1 | 1 |
| Number of Bits per Element | 8 | 8 |
| Input Type | - | - |
| Output Type | 3-State | - |
| Current - Output High, Low | 15mA, 64mA | - |
| Voltage - Supply | 4.5V ~ 5.5V | - |
| Operating Temperature | 0°C ~ 70°C (TA) | - |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 20-DIP (0.300", 7.62mm) | 20-DIP (0.300", 7.62mm) |
| Supplier Device Package | 20-PDIP | 20-PDIP |