8-Bit Bidirectional Binary Counter with 3-STATE Outputs The 74F579PC is a 8-bit bidirectional binary counter with 3-state outputs, manufactured by Fairchild Semiconductor. It is part of the 74F series of logic devices. Key specifications include:

- **Logic Family:** 74F
- **Function:** 8-bit bidirectional binary counter
- **Output Type:** 3-state
- **Package Type:** DIP (Dual In-line Package)
- **Operating Voltage:** 5V
- **Operating Temperature Range:** 0°C to +70°C
- **Propagation Delay:** Typically 7.5 ns
- **Input/Output Compatibility:** TTL (Transistor-Transistor Logic)
- **Pin Count:** 20

The 74F579PC is designed for high-speed operation and is commonly used in applications requiring bidirectional counting and data storage.