TI-TS2PCIE412.pdf

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《TI-TS2PCIE412.pdf》文档所描述的是一款名为TS2PCIE412的PCI Express（PCIe）开关芯片。该芯片是一款四通道的8:16多路复用器/解复用器，适用于PCIe总线的多路复用和扩展。以下是关于该芯片的详细知识： 1. **兼容性**：TS2PCIE412完全符合PCI Express标准，确保了与各种PCIe设备的无缝连接。 2. **高带宽**：该芯片提供超过3 Gbps的宽带宽，满足高速数据传输的需求。 3. **低串扰**：在1.25 GHz时，串扰（XTALK）典型值为-32 dB，这表明在高频操作中，信号间的干扰极小，保证了信号的纯净度。 4. **低比特间 skew**：tsk(O)的典型值为0.06 ns，这意味着不同比特间的时钟偏移极小，确保了数据同步的精确性。 5. **电源电压范围**：支持1.5 V至2 V的VDD工作电压范围，适应不同系统的需求。 6. **Ioff支持**：支持部分电源关闭模式操作，有利于降低功耗，提高能效。 7. **抗锁定性能**：按照JESD 78，Class II标准，其抗锁定性能超过100 mA，保证了芯片在高电流冲击下的稳定性。 8. **静电放电（ESD）防护**：根据JESD 22标准，通过了2000-V人体模型（A114-B，Class II）和1000-V充电设备模型（C101）的ESD性能测试，确保了芯片在日常使用中的安全性。 9. **应用场景**：主要应用于笔记本电脑、台式电脑、服务器和存储区域网络中的PCIe总线复用、PCIe数据及显示端口信号的路由。 10. **封装信息**：采用RU封装，该封装具有40个焊球，其中Exposed Center Pad应连接至地线（GND），以确保电气性能和热稳定性。 11. **控制方式**：通过一个选择输入（SEL）引脚控制数据路径，可以连接到系统中的任何GPIO（通用输入/输出）。 12. **非选中通道状态**：未被选择的通道将被设置为高阻态，防止信号泄漏或干扰其他通道。 在订购TS2PCIE412时，需要注意的是，具体的封装和订购信息可能会随着时间更新，建议访问TI官方网站（www.ti.com）获取最新的包装和订购指南。 TI的TS2PCIE412是一款高性能、低干扰、高可靠性的PCIe开关芯片，适用于需要高效数据传输和信号路由的系统设计。它的特性使其在现代计算机硬件和数据中心架构中扮演着重要角色。
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17
A
0
A
2
A
4
A
6
GND
V
DD
V
DD
GND
GND
Exposed
Center Pad
(GND)
V
DD
SEL
GND
V
DD
V
DD
GND
GND
V
DD
V
DD
GND
GND
GND
A
1
A
3
A
5
A
7
1 1
B
5 1
B
1 2
B
5 2
B
3 1
B
7 1
B
3 2
B
7 2
B
0
B
1
4
B
1
0 2
B
4 2
B
V
DD
2 1
B
6 1
B
2 2
B
6 2
B
TS2PCIE412
www.ti.com
SCDS269C –MARCH 2009–REVISED APRIL 2010
4-CHANNEL 8:16 MULTIPLEXER/DEMULTIPLEXER PCI EXPRESS SWITCH
Check for Samples: TS2PCIE412
1
FEATURES
RUA PACKAGE
2
• Compatible With PCI Express (PCIe) Standard
(TOP VIEW)
• Wide Bandwidth of over 3 Gbps
• Low Crosstalk (X
TALK
= –32 dB Typ at
1.25 GHz)
• O
IRR
= –36.3 dB Typical at 1.25 GHz
• Low Bit-to-Bit Skew (t
sk(O)
= 0.06 ns Typical)
• V
DD
Operating Range: 1.5 V to 2 V
• I
off
Supports Partial Power-Down Mode
Operation
• Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
• ESD Performance Tested Per JESD 22
– 2000-V Human-Body Model
(A114-B, Class II)
– 1000-V Charged-Device Model (C101)
APPLICATIONS
• PCIe Bus Multiplexing and Expansion
• Routing PCI Express Data and/or Display Port
Signals
• Notebook PCs
• Desktop PCs
• Servers/Storage Area Networks
If the exposed center pad is used, it must
be connected to ground.
DESCRIPTION/ ORDERING INFORMATION
The TS2PCIE412 is a 4-channel PCIe 2:1 multiplexer/demultiplexer switch that can be used to route one PCIe
data lane between two possible destinations or two PCIe data lanes to one destination. Each channel consists of
differential pairs of receive (RX) and transmit (TX) signals and operates at a signal-processing bandwidth speed,
which supports the PCIe standard of 2.5 Gbps. The device is controlled with one select input (SEL) pin, where
SEL controls the data path of the multiplexer/demultiplexer and can be connected to any GPIO in the system.
The unselected channel is set in a high-impedance state.
ORDERING INFORMATION
T
A
PACKAGE
(1) (2)
ORDERABLE PART NUMBER TOP-SIDE MARKING
–40°C to 85°C QFN – RUA Tape and reel TS2PCIE412RUAR SH412
(1) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
(2) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009–2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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Control
Logic
A
0
A
2
A
4
A
6
SEL
A
1
A
3
A
5
A
7
1 1
B
5 1
B
1 2
B
5 2
B
3 1
B
7 1
B
3 2
B
7 2
B
0
B
1
4
B
1
0 2
B
4 2
B
2 1
B
6 1
B
2 2
B
6 2
B
TS2PCIE412
SCDS269C –MARCH 2009–REVISED APRIL 2010
www.ti.com
FUNCTION TABLE
SEL FUNCTION
L A
n
to
n
B
1
H A
n
to
n
B
2
FUNCTIONAL DIAGRAM
TERMINAL FUNCTIONS
TERMINAL
I/O DESCRIPTION
NAME NO.
2, 3, 6,
A
n
, 7, 11, 12, I/O Data I/Os
15, 16
22–29,
n
B
m
I/O Data I/Os
31–38
SEL 9 I Select input
5, 8, 13,
V
DD
18, 20, 30, – Power supply
40, 42
1, 4, 10,
14, 17, 19,
GND 21, 39, 41, – Ground
Exposed
center pad
2 Submit Documentation Feedback Copyright © 2009–2010, Texas Instruments Incorporated
Product Folder Link(s): TS2PCIE412
TS2PCIE412
www.ti.com
SCDS269C –MARCH 2009–REVISED APRIL 2010
ABSOLUTE MAXIMUM RATINGS
(1) (2)
over operating free-air temperature range (unless otherwise noted)
MIN MAX UNIT
V
DD
Supply voltage range –0.5 2.5 V
V
IN
Control input voltage range
(2) (3)
–0.5 2.5 V
V
I/O
Switch I/O voltage range
(2) (3) (4)
–0.5 2.5 V
I
IK
Control input clamp current V
IN
< GND –50 mA
I
I/OK
I/O port clamp current V
I/O
< GND –50 mA
I
I/O
ON-state switch current
(5)
100 mA
I
DD
Continuous current through V
DD
100 mA
I
GND
Continuous current through GND –100 mA
T
stg
Storage temperature range. –65 150 °C
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltages are with respect to GND unless otherwise specifed.
(3) The input voltage and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.
(4) V
I
and V
O
are used to denote specific conditions for V
I/O
.
(5) I
I
and I
O
are used to denote specific conditions for I
I/O
.
PACKAGE THERMAL IMPEDANCE
over operating free-air temperature range (unless otherwise noted)
UNIT
q
JA
Package thermal impedance
(1)
RUA package 51.2 °C/W
(1) The package thermal impedance is calculated in accordance with JESD 51-7.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN TYP MAX UNIT
V
DD
Supply voltage 1.5 1.8 2 V
V
IH
High-level control input voltage (SEL) 0.65 × V
DD
V
V
IL
Low-level control input voltage (SEL) 0.35 × V
DD
V
V
IO
Switch input/output voltage 0 V
DD
V
T
A
Operating free air temperature 0 85 °C
Copyright © 2009–2010, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Link(s): TS2PCIE412

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