Логическая ИС SN74CB3Q3257RGYR

Multiplexer / Demultiplexer Bus Switch , CB3Q Family, 4 Channels, 1:2, 2.3 V to 3.6 V, VQFN-16

The SN74CB3Q3257RGYR is a high-bandwidth FET Bus Switch utilizes a charge pump to elevate the gate voltage of the pass transistor, providing a low and flat ON-state resistance (ron). The low and flat ON-state resistance allows for minimal propagation delay and supports rail-to-rail switching on the data input/output (I/O) ports. The device also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus. Specifically designed to support high-bandwidth applications, the SN74CB3Q3257 device provides an optimized interface solution ideally suited for broadband communications, networking and data-intensive computing systems. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry prevents damaging current backflow through the device when it is powered down. The device has isolation during power off.

• Low and flat ON-state resistance (ron) characteristics over operating range (ron= 4R typical)
• Rail-to-rail switching on data I/O ports
• Bidirectional data flow with near-zero propagation delay
• Low input and output capacitance minimizes loading and signal distortion
• Fast switching frequency (f OE = 20MHz maximum)
• Data and control inputs provide undershoot clamp diodes
• Low power consumption
• Control inputs can be driven by TTL or 5/3.3V CMOS outputs
• Ioff Supports partial-power-down mode operation
• 5V Tolerant I/Os with device powered up or powered down

• Green product and no Sb/Br

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