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参数资料
| 型号： | CBTW28DD14ET |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 编、解码器及复用、解复用 |
| 英文描述： | 14-bit bus switch-multiplexer for DDR2-DDR3 applications |
| 中文描述： | MULTIPLEXER, PBGA48 |
| 封装： | 4.50 X 4.50 MM, 0.80 MM PITCH, 0.50 MM PITCH, GREEN, PLASTIC, SOT1155-1, TFBGA-48 |
| 文件页数： | 1/12页 |
| 文件大小： | 267K |
| 代理商： | CBTW28DD14ET |
1.
General description
This 14-bit bus switch/multiplexer (MUX) is designed for 1.5 V or 1.8 V supply voltage
operation, SSTL_15 or SSTL_18 signaling and CMOS select input levels. It is designed
for operation in DDR2 or DDR3 memory bus systems, with speeds up to 1600 MT/s.
The CBTW28DD14 has a 1 : 2 switch or 2 : 1 multiplex topology and offers a 14-bit wide
bus. Each 14-bit wide A-port can be switched to one of two ports B and C, for all bits
simultaneously. The selection of the port is by a simple CMOS input (SELect). Another
CMOS input (ENable) is available to allow all ports to be disconnected. Each port is
non-directional due to the use of FET switches, allowing a multitude of applications
requiring high-bandwidth switching or multiplexing.
The device is able to operate transparently in 1.5 V as well as 1.8 V applications. Typical
usage is SSTL_15 signaling when using a supply voltage of 1.5 V, and SSTL_18 signaling
when using a supply voltage of 1.8 V. The SEL and EN input signals are designed to
operate transparently as CMOS input level signals in both 1.5 V and 1.8 V supply voltage
conditions.
CBTW28DD14 uses NXP’s proprietary high-speed switch architecture providing high
bandwidth, very little insertion loss at low frequency, and very low propagation delay,
allowing use in many applications requiring switching or multiplexing of high-speed
signals. It is available in a 4.5 mm
× 4.5 mm TFBGA48 package with 0.5 mm ball pitch, for
optimal size versus board layout density considerations. It is characterized for operation
from
10 °C to +85 °C.
2.
Features and benefits
2.1 Topology
14-bit bus width
1 : 2 switch/MUX topology
Bidirectional operation
Simple CMOS select pin (SEL)
Simple CMOS enable pin (EN)
2.2 Performance
1600 MT/s throughput
2.5 GHz bandwidth
Low ON insertion loss
Low crosstalk
High OFF isolation
CBTW28DD14
14-bit bus switch/multiplexer for DDR2-DDR3 applications
Rev. 1 — 20 July 2010
Product data sheet
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| CBTW28DD14ET,118 | 功能描述:多路器开关 IC 2.5GHz 2V 0.3mA 80ps RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
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