This datasheet provides a detailed introduction to FST162861's features and characteristics, including 25Ω switch connection, minimum propagation delay, low lCC, zero bounce and TTL level control inputs.
The Fairchild Semiconductor FST162861 is a 20-bit bus switch designed for high-speed CMOS TTL-compatible applications. It features a low on-resistance that minimizes propagation delay and eliminates the need for external terminating resistors by incorporating 250 series resistors in the outputs. The device can be organized as a 10-bit or 20-bit switch, connecting Port 1A to 1B and Port 2A to 2B when the Output Enable (OE) is LOW.
| Switch Connection | 250 switch connection between two ports |
|---|---|
| Package Description | 48-Lead Thin Shrink Small Outline Package (TSSOP) |
| Package Width | 6.1mm |
| Supply Voltage | 4.0V to 5.5V |
| Free Air Operating Temperature | -40 °C to +85 °C |
| Switch ON Resistance | 20 to 48 Ohms |
The device is available in a 48-Lead Thin Shrink Small Outline Package (TSSOP).
No, the device has an equivalent 25 series resistors to reduce signal-reflection noise, eliminating the need for external terminating resistors.
The recommended operating conditions specify a power supply voltage (Vcc) of 4.0V to 5.5V.