74LS574 Octal D-type F/F Edge-Triggered Tri-State
Package PDIP, SOIC Series 74LS
74LS574 overview
The 74LS series of integrated circuits (ICs) was one of the most popular logic families of transistor-transistor logic (TTL) logic chips. 74LS series is a bipolar, low-power Schottky IC.The 74LS574 is a high-speed low power octal flip-flop with a buffered common Clock (CP) and a buffered common Output Enable (OE).
Datasheet
574.pdf
74LS574 features
- Identical to 74LS374 with Different Pinouts
- Inputs and Outputs on Opposite Sides of the Package
- Useful as Input or Output Port for Microprocessors
- Fully TTL and CMOS Compatible
- Input Clamp Diodes
74LS574 pinout
| Pin | Name | Description |
|---|---|---|
| 1 | OE' | Enable Pin 1 |
| 2 | D0 | Input Of D Flip Flop 0 |
| 3 | D1 | Input Of D Flip Flop 1 |
| 4 | D2 | Input Of D Flip Flop 2 |
| 5 | D3 | Input Of D Flip Flop 3 |
| 6 | D4 | Input Of D Flip Flop 4 |
| 7 | D5 | Input Of D Flip Flop 5 |
| 8 | D6 | Input Of D Flip Flop 6 |
| 9 | D7 | Input Of D Flip Flop 7 |
| 10 | GND | Ground |
| 11 | CP | Clock Pulse |
| 12 | O7 | Output Of D Flip Flop 7 |
| 13 | O6 | Output Of D Flip Flop 6 |
| 14 | O5 | Output Of D Flip Flop 5 |
| 15 | O4 | Output Of D Flip Flop 4 |
| 16 | O3 | Output Of D Flip Flop 3 |
| 17 | O2 | Output Of D Flip Flop 2 |
| 18 | 01 | Output Of D Flip Flop 1 |
| 19 | O0 | Output Of D Flip Flop 0 |
| 20 | VCC | Positive Supply |
74LS574 applications
- Create delay-lines which are used in digital signal processing systems
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