This product is an 8-bit bus switch that supports TTL level, has a 4 ohm switch connection, minimal propagation delay, low lCC, zero bounce and TTL level control inputs.
The Fairchild Semiconductor FST3345 is an 8-bit bus switch designed to provide high-speed, TTL-compatible switching between two ports. It features a low on-resistance that minimizes propagation delay and ground bounce noise, making it suitable for connecting inputs to outputs without signal degradation. The device operates in a flow-through mode with zero bounce and includes dual output enable inputs (OE and OE) for control.
| Switch On Resistance | 4 ohms max |
|---|---|
| Free Air Operating Temperature | -40 °C to +85 °C |
| Switch Control Input On/Off Time | 5ns/V to 5ns/V |
When OE is LOW or OE is HIGH, the switch is ON and Port A is connected to Port B. When OE is HIGH and OE is LOW, the switch is OPEN.
The absolute maximum rating for the supply voltage (Vcc) is +7.0V.