Overview
Description
The QS33X257 is a high-speed CMOS TTL-compatible 24:12 multiplexer/demultiplexer. The QS33X257 is functionally compatible to three of the QuickSwitch versions of the 74F257, 74FCT257, and the 74ALS/AS/LS257 quad 2:1 multiplexers. The low ON-resistance of the QS33X257 allows inputs to be connected to outputs without adding propagation delay and without generating additional ground bounce noise. The QS33X257 operates at -40 °C to +85 °C.
Features
- Enhanced N-channel FET with no inherent diode to VCC
- Bidirectional signal flow
- 24:12 Mux/Demux switches connect inputs to outputs
- Individual controls for each bank
- Zero propagation delay, zero ground bounce
- Undershoot clamp diodes on all switch and control inputs
- TTL-compatible control inputs
- Available in a 48-pin QVSOP package
Comparison
Applications
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
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