The 74F540 and 74F541 are octal buffers that are ideal for driving bus lines or buffer memory address registers. The outputs are capable of sinking 64mA and sourcing up to 15mA, producing very good capacitive drive characteristics. The devices feature input and outputs on opposite sides of the package to facilitate printed circuit board layout.
This document is a product specification datasheet for the Philips Semiconductors 74F540 (Octal Inverter Buffer) and 74F541 (Octal Buffer). These devices are designed to drive bus lines or buffer memory address registers, offering high impedance NPN base inputs that reduce loading on microprocessors. The outputs feature a 3-state capability with the ability to sink up to 64mA and source up to 15mA.
| Operating Temperature Range | 0 to +70 °C |
|---|---|
| Output Sink Current (Typical) | 64 mA |
| Output Source Current (Typical) | 15 mA |
| Propagation Delay (74F540, Typ) | 3.5 ns |
| Propagation Delay (74F541, Typ) | 5.5 ns |
The recommended nominal supply voltage (Vcc) is 5.0 V.
The outputs are capable of sinking 64 mA and sourcing up to 15 mA.