CBTW28DD14ET中文资料14-bit bus switch/multiplexer for DDR2/DDR3/DDR4 applications数据手册恩XP规格书

描述 Description

This 14-bit bus switch/multiplexer (MUX) is designed for 1.5 V or 1.8 V supply voltageoperation, POD_12, SSTL_12, SSTL_135, SSTL_15 or SSTL_18 signaling and CMOSselect input levels. It is designed for operation in DDR2, DDR3 or DDR4 memory bussystems.
The CBTW28DD14 has a 1 : 2 switch or 2 : 1 multiplex topology and offers a 14-bit widebus. Each 14-bit wide A-port can be switched to one of two ports B and C, for all bitssimultaneously. The selection of the port is by a simple CMOS input (SELect). AnotherCMOS input (ENable) is available to allow all ports to be disconnected. Each port isnon-directional due to the use of FET switches, allowing a multitude of applicationsrequiring high-bandwidth switching or multiplexing.
The SEL and EN input signals are designed to operate transparently as CMOS input levelsignals in both 1.5 V and 1.8 V supply voltage conditions.
CBTW28DD14 uses NXP proprietary high-speed switch architecture providing highbandwidth, very little insertion loss at low frequency, and very low propagation delay,allowing use in many applications requiring switching or multiplexing of high-speedsignals. It is available in a 4.5 mm x 4.5 mm TFBGA48 package with 0.5 mm ball pitch, foroptimal size versus board layout density considerations. It is characterized for operationfrom -10 °C to +85 °C.

特性 Features

Topology14-bit bus width
1 : 2 switch/MUX topology
Bidirectional operation
Simple CMOS select pin (SEL)
Simple CMOS enable pin (EN)
Performance2.5 GHz bandwidth
Low ON insertion loss
Low crosstalk
High OFF isolation
POD_12, SSTL_12, SSTL_135, SSTL_15 or SSTL_18 signaling
Low RON (10 Ω typical)
General attributes1.5 V or 1.8 V supply voltage operation
Very low supply current (300 μA typical)
ESD robustness exceeds 3 kV HBM, 1 kV CDM
Available in TFBGA48 package, 4.5 mm × 4.5 mm × 0.8 mm size, 0.5 mm pitch, Pb-free/Dark Green

应用 Application

DDR2/DDR3/DDR4 memory bus systems
Systems requiring high-speed multiplexing