| Part Number | SN74HC640N | SN74HC540N |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Category | Logic - Buffers, Drivers, Receivers, Transceivers | Logic - Buffers, Drivers, Receivers, Transceivers |
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| Product Status | Active | Active |
| Logic Type | Transceiver, Inverting | Buffer, Inverting |
| Number of Elements | 1 | 1 |
| Number of Bits per Element | 8 | 8 |
| Input Type | - | - |
| Output Type | 3-State | 3-State |
| Current - Output High, Low | 7.8mA, 7.8mA | 7.8mA, 7.8mA |
| Voltage - Supply | 2V ~ 6V | 2V ~ 6V |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°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 |