| Part Number | SN74LS540N | SN74LS540M | 
|---|---|---|
| Manufacturer | Texas Instruments | onsemi | 
| Category | Logic - Buffers, Drivers, Receivers, Transceivers | Logic - Buffers, Drivers, Receivers, Transceivers | 
|   |   | |
| Product Status | Active | Active | 
| Logic Type | Buffer, Inverting | - | 
| Number of Elements | 1 | - | 
| Number of Bits per Element | 8 | - | 
| Input Type | - | - | 
| Output Type | 3-State | - | 
| Current - Output High, Low | 15mA, 24mA | - | 
| Voltage - Supply | 4.75V ~ 5.25V | - | 
| Operating Temperature | 0°C ~ 70°C (TA) | - | 
| Mounting Type | Through Hole | - | 
| Package / Case | 20-DIP (0.300", 7.62mm) | - | 
| Supplier Device Package | 20-PDIP | - |