SN74CB3Q3257PWR

TEXAS INSTRUMENTS  SN74CB3Q3257PWR.  芯片, 多路复用器/分离器, 1:2四路FET, TSSOP-16, 整卷

The 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