The 74F244/74F244B is an octal buffer produced by Philips Semiconductors. It is ideal for driving bus lines of buffer memory address registers. The outputs are all capable of sinking 64mA and sourcing up to 15mA, producing very good capacitive drive characteristics. The device features two output enables, OEa and OEb, each controlling four of the 3-State outputs. The 74F244B is functionally equivalent to the 74F244. It has been designed to reduce effects of ground noise. Other advantages are noted in the features.
This document is a product specification for the Philips 74F244 and 74F244B, which are octal buffers with 3-State outputs designed for driving bus lines in memory address registers. The 74F244B variant offers improvements such as reduced ground bounce, reduced loading, and lower supply current compared to the standard 74F244.
| Supply Current (Total) (Typical) | 53mA |
|---|---|
| Supply Current (Total) (Typical) 74F244B | 33mA |
| Output Sink Current | 64mA |
| Output Source Current | 15mA |
| Output Skew (Max) | 2.0ns |
| Operating Temperature (Commercial) | 0°C to +70°C |
| Operating Temperature (Industrial) | -40°C to +85°C |
The 74F244B is functionally equivalent to the 74F244 but is designed to reduce effects of ground noise, reduce loading, and lower supply current.
The device is an octal buffer, meaning it has eight outputs.
The device features two output enables, OEa and OEb, each controlling four of the 3-State outputs.