The 74F573 is an octal transparent latch coupled to eight 3-State output buffers. The two sections of the device are controlled independently by Enable (E) and Output Enable (OE) control gates.
This datasheet describes the Philips 74F573 and 74F574 integrated circuits, which are high-speed replacements for the 74F373 and 74F374. The 74F573 is an octal transparent latch coupled to eight 3-State output buffers, while the 74F574 is an octal D flip-flop with similar output capabilities. Both devices feature a broadside pinout configuration designed to facilitate PC board layout and allow easy interface with microprocessors.
| Operating Temperature Range | 0°C to +70°C |
|---|---|
| Maximum Clock Frequency (74F574) | 180 MHz |
| Typical Supply Current (74F573) | 35 mA |
| Typical Supply Current (74F574) | 50 mA |
The 74F573 is an octal transparent latch, while the 74F574 is an octal D flip-flop.
Yes, the 74F573 is functionally identical to the 74F373, and the 74F574 is functionally identical to the 74F374.
The active Low Output Enable (OE) controls all eight 3-State buffers; when OE is High, the outputs are in a high impedance state.