NC7SB3257 is a high performance 2-to-1 NMOS passgate multiplexer/demultiplexer from Fairchild’s Ultra High Speed Series of TinyLogic®. It features high speed enable and disable times, low on resistance, space saving SC70 6-lead surface mount package. The product is specified to operate over the 4.0 to 5.5V VCC operating range and can tolerate voltages up to 5.5V independent of the VCC operating range.
The NC7SB3257 is a TinyLogic™ UHS single 2‑to‑1 NMOS pass‑gate multiplexer/demultiplexer designed for high‑speed operation. It features a space‑saving SC70 6‑lead surface‑mount package, typical 39 Ω on‑resistance at 5 V, minimal propagation delay, power‑down high‑impedance control input, TTL‑compatible control, and break‑before‑make enable circuitry.
Electrical specifications include a recommended supply voltage range of 4.0 V to 5.5 V, control‑input over‑voltage tolerance to 7.0 V, DC output current up to 128 mA, and power dissipation of 180 mW at 85 °C. The device is supplied on tape and reel, with detailed mechanical dimensions and a life‑support policy disclaimer.
| On‑Resistance (typ) | 39 Ω @ 5.0 V |
|---|---|
| Control Input Over‑Voltage Tolerance | 7.0 V |
| Power Dissipation (85 °C) | 180 mW |
The device is specified to operate with a supply voltage (Vcc) from 4.0 V to 5.5 V.
The control input can tolerate voltages up to 7.0 V, independent of the supply voltage.
It is supplied in a 6‑lead SC70 (EIAJ SC88) surface‑mount package, 1.25 mm wide.