1 Features

• Supports SSTL_18 signaling levels

• Suitable for DDR-II applications

• D-port outputs are precharged by bias voltage

(VBIAS)

• Internal termination for control inputs

• High bandwidth (400 MHz minimum)

• Low and flat ON-state resistance (ron)

characteristics, (ron = 17 Ω maximum)

• Internal 400-Ω pulldown resistors

• Low differential and rising or falling edge skew

• Latch-up performance exceeds 100 mA per JESD

78, Class II

2 Applications

• ATCA solutions

• Automated external defibrillators

• Adaptive lighting

• Blood gas analyzers: portable

• Bluetooth headsets

• CT scanners

• Cameras: surveillance analog

• Chemical and gas sensors

• DLP 3D machine vision and optical networking

3 Description

The SN74CBTU4411 device is a high-bandwidth,

SSTL_18 compatible FET multiplexer/demultiplexer

with low ON-state resistance (ron). The device uses

an internal charge pump to elevate the gate voltage

of the pass transistor, providing a low and flat ron. The

low and flat ron allows for minimal propagation delay

and supports rail-to-rail signaling on data input/output

(I/O) ports. The device also features very low data

I/O capacitance to minimize capacitive loading and

signal distortion on the data bus. Matched ron and I/O

capacitance among channels results in extremely low

differential and rising or falling edge skew. This allows

the device to show optimal performance in DDR-II

applications.