MAXIM MAX4889ETO

19-0724; Rev 0; 5/07
2.5Gbps PCI Express Passive Switches
The MAX4888/MAX4889 high-speed passive switches
route PCI Express® (PCIe) data between two possible
destinations. The MAX4888 is a quad single-pole/doublethrow (4 x SPDT) switch ideally suited for switching two
half lanes of PCIe data between two destinations. The
MAX4889 is an octal single-pole/double-throw (8 x SPDT)
switch ideal for switching four half lanes of PCIe data
between four destinations. The MAX4888/MAX4889 feature a single digital control input (SEL) to switch signal
paths.
The MAX4888/MAX4889 are fully specified to operate
from a single 3.0V to 3.6V power supply and also operate down to +1.65V. The MAX4888 is available
in a 3.5mm x 5.5mm, 28-pin TQFN package. The
MAX4889 is available in a 3.5mm x 9.0mm, 42-pin TQFN
package. Both devices operate over the -40°C to +85°C
temperature range.
Features
♦ Single 1.65V to 3.6V Power-Supply Voltage
♦ Low Same-Pair Skew of 7ps
♦ Low 120µA (Max) Quiescent Current
♦ Supports PCIe Gen I Data Rates
♦ Flow-Through Pin Configuration for Ease of
Layout
♦ Industry-Compatible Pinout
♦ Lead-Free Packaging
Ordering Information/
Selector Guide
Desktop Computers
PINPACKAGE
CONFIGURATION
PKG
CODE
MAX4888ETI+ 28 TQFN-EP*
Two
Half Lanes
T283555-1
MAX4889ETO+ 42 TQFN-EP*
Four Half
Lanes
T423590M-1
PART
Applications
Servers/Storage Area Networks
Laptops
PCI Express is a registered trademark of PCI-Sig Corp.
Note: All devices are specified over the -40°C to +85°C operating temperature range.
+Denotes lead-free package.
*EP = Exposed paddle.
Typical Application Circuit appears at end of data sheet.
Pin Configurations
NO4-
NO4+
NO3-
NO3+
NC4-
NC4+
NC3-
NC3+
V+
NO2-
NO2+
NO1-
NO1+
NC2-
8
9
10 11 12 13 14 15 16 17
GND
7
COM4-
6
COM4+
5
GND
4
V+
3
COM3-
2
COM3+
1
GND
10
SEL
9
V+
COM1+
8
COM2-
N.C.
7
GND
SEL
6
N.C.
GND
5
V+
4
COM2-
3
COM2+
2
COM1-
1
18 V+
+
COM2+
11 V+
+
V+
V+ 28
19 GND
*EP
V+ 42
GND
12 GND
*EP
MAX4889
GND 41
COM1-
GND 27
20 V+
V+ 40
GND
13 V+
MAX4888
21 GND
GND 39
COM1+
14 GND
V+ 26
NC2+
38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22
24 23 22 21 20 19 18 17 16 15
GND 25
NC1-
NC1+
NO2-
NO2+
NO1-
NO1+
V+
GND
NC2-
NC2+
NC1-
NC1+
TOP VIEW
TQFN
TQFN
*CONNECT EXPOSED PADDLE TO GROUND.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
1
MAX4888/MAX4889
General Description
MAX4888/MAX4889
2.5Gbps PCI Express Passive Switches
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND, unless otherwise noted.)
V+ .............................................................................-0.3V to +4V
SEL, COM__, NO__, NC__ (Note 1) .............-0.3V to (V+ + 0.3V)
| COM__ - NO__ |, | COM__ - NC__ | (Note 1) ...................0 to 2V
Continuous Current (COM_ to NO__/NC__) .....................±70mA
Peak Current (COM__ to NO__/NC__)
(pulsed at 1ms, 10% duty cycle)..................................±70mA
Continuous Current (SEL).................................................±30mA
Peak Current (SEL)
(pulsed at 1ms, 10% duty cycle)................................±150mA
Continuous Power Dissipation (TA = +70°C)
28-Pin TQFN (derate 20.8mW/°C above +70°C) ....1666.7mW
42-Pin TQFN (derate 35.7mW/°C above +70°C) ....2857.1mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Junction Temperature ......................................................+150°C
Note 1: Signals on SEL, NO__, NC__ or COM__ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current
to maximum current rating.
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 in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V+ = 3.0V to 3.6V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Analog-Signal Range
Voltage Between COM and
NO/NC
On-Resistance
VCOM_,
VNO_, VNC_
-0.1
(V+ - 1.2)
V
| VCOM_ VNO_ | ,
| VCOM_ VNC_ |
0
1.8
V
RON
V+ = 3.0V, ICOM_ = 15mA,
VNO_ or VNC_ = 0V, 1.8V
Ω
7
On-Resistance Match Between
Pairs of Same Channel
ΔRON
V+ = 3.0V, ICOM_ = 15mA,
VNO_ or VNC_ = 0V (Notes 3, 4)
0.1
1
Ω
On-Resistance Match
Between Channels
ΔRON
V+ = 3.0V, ICOM_ = 15mA,
VNO_ or VNC_ = 0V (Notes 3, 4)
0.6
2
Ω
0.06
2
Ω
On-Resistance Flatness
RFLAT(ON)
V+ = 3.0V, ICOM_ = 15mA
VNO_ or VNC_ = 0V, 1.8V (Notes 4, 5)
NO_ or NC_ Off-Leakage
Current
INO_(OFF)
INC_(OFF)
V+ = 3.6V; VCOM_ = 0V, 1.8V;
VNO_ or VNC_ = 1.8V, 0V
-1
+1
µA
COM_ On-Leakage
Current
ICOM_(ON)
V+ = 3.6V; VCOM_ = 0V, 1.8V;
VNO_ or VNC_ = VCOM_ or unconnected
-1
+1
µA
2
_______________________________________________________________________________________
2.5Gbps PCI Express Passive Switches
(V+ = 3.0V to 3.6V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
TYP
MAX
UNITS
VNO_ or VNC_ = 1.0V, RL = 50Ω, Figure 1
90
250
ns
tOFF
VNO_ or VNC_ = 1.0V, RL = 50Ω, Figure 1
10
50
tPD
RS = RL = 50Ω, unbalanced, Figure 2
50
ps
Output Skew Between Pairs
tSK1
RS = RL = 50Ω, unbalanced; skew between
any two pairs, Figure 2
50
ps
Output Skew Between Same
Pair
tSK2
RS = RL = 50Ω, unbalanced; skew between
two lines on same pair, Figure 2
10
ps
DYNAMIC
Turn-On Time
tON
Turn-Off Time
Propagation Delay
On-Loss
GLOS
Crosstalk
VCT1
Signaling Data Rate
Off-Isolation
NO_/NC_ Off-Capacitance
COM_ On-Capacitance
CONDITIONS
RS = RL = 50Ω,
unbalanced,
Figure 3
Crosstalk between
any two pairs,
RS = RL = 50Ω,
unbalanced,
Figure 3
BR
RS = RL = 50Ω
VISO
Signal = 0dBm,
RS = RL = 50Ω,
Figure 3
MIN
1MHz < f < 100MHz
-0.5
500MHz < f < 1.25GHz
-1.4
f = 50MHz
-53
f = 1.25GHz
-32
dB
dB
3.0
f = 10MHz
-56
f = 1.25GHz
-26
Gbps
dB
CNO_/NC_(OFF) Figure 4
CCOM_(ON)
ns
Figure 4
1
pF
2
pF
LOGIC INPUT
Input-Logic Low
VIL
Input-Logic High
VIH
Input-Logic Hysteresis
VHYST
Input Leakage Current
IIN
0.5
1.4
100
VSEL = 0V or V+
V
V
mV
-1
+1
µA
1.65
3.60
V
POWER SUPPLY
Power-Supply Range
V+
V+ Supply Current
I+
VSEL = 0V or V+
MAX4888
60
MAX4889
120
µA
Note 2: All units are 100% production tested at TA = +85°C. Limits over the operating temperature range are guaranteed by design
and characterization and are not production tested.
Note 3: ΔRON = RON (MAX) - RON (MIN).
Note 4: Guaranteed by design. Not production tested.
Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal range.
_______________________________________________________________________________________
3
MAX4888/MAX4889
ELECTRICAL CHARACTERISTICS (continued)
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
ON-RESISTANCE vs. VCOM
(V+ = 1.8V)
V+ = 1.8V
9.0
TA = +85°C
12
RON (Ω)
8.0
7.5
7.0
6.5
10
8
6
8
6
TA = -40°C
4
TA = +25°C
4
V+ = 3.3V
2
5.5
5.0
2
0
-0.1 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1
VCOM (V)
0
0.1
0.2 0.3
VCOM (V)
0.4
0.5
TA = +85°C
RON (Ω)
10
8
6
4
2
-0.1
0.1
0.3
0.5 0.7
VCOM (V)
80
70
SUPPLY CURRENT (μA)
TA = +25°C
0.6
SUPPLY CURRENT vs. TEMPERATURE
(MAX4888)
MAX4888/89 toc04
14
12
TA = -40°C
0
-0.1
ON-RESISTANCE vs. VCOM
(V+ = 3.3V)
TA = -40°C
0
60
V+ = 3.3V
50
40
V+ = 2.5V
30
20
10
V+ = 1.8V
0
-0.1 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1
VCOM (V)
4
TA = +85°C
12
MAX4888/89 toc05
6.0
TA = +25°C
10
V+ = 2.5V
14
RON (Ω)
8.5
14
MAX4888/89 toc02
9.5
MAX4888/89 toc01
10.0
ON-RESISTANCE vs. VCOM
(V+ = 2.5V)
MAX4888/89 toc03
ON-RESISTANCE vs. VCOM
RON (Ω)
MAX4888/MAX4889
2.5Gbps PCI Express Passive Switches
-40
-15
10
35
TEMPERATURE (°C)
60
_______________________________________________________________________________________
85
0.9
1.1
1.3
2.5Gbps PCI Express Passive Switches
0.8
VIL
0.7
140
120
100
80
60
40
20
0
0.6
0.5
1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
SUPPLY VOLTAGE (V)
NO_ tON
50mV/div
NC_ tON
NO_ tOFF
NC_ tOFF
VCOM_1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6
SUPPLY VOLTAGE (V)
MAX4888/89 toc09
EYE DIAGRAM
(V+ = 2.5V, f = 1.25GHz,
600mVP-P PRBS SIGNAL, RS = RL = 50Ω)†
VCOM_+
50mV/div
VCOM_+
50ps/div
*PRBS = PSEUDORANDOM BIT SEQUENCE
†GEN I; 2.5Gps; UI = 400ps
EYE DIAGRAM
(V+ = 3.3V, f = 1.25GHz,
600mVP-P PRBS SIGNAL, RS = RL = 50Ω)†
MAX4888/89 toc10
0.9
MAX4888/89 toc07
MAX4888/89 toc06
VIH
tON/tOFF (ns)
LOGIC THRESHOLD (V)
1.1
1.0
TURN-ON/-OFF TIME vs. SUPPLY VOLTAGE
240
220
200
180
160
MAX4888/89 toc08
LOGIC THRESHOLD vs. SUPPLY VOLTAGE
1.2
EYE DIAGRAM
(V+ = 1.8V, f = 1.25GHz,
600mVP-P PRBS SIGNAL, RS = RL = 50Ω)†
VCOM_+
50mV/div
VCOM_-
VCOM_50ps/div
*PRBS = PSEUDORANDOM BIT SEQUENCE
†GEN I; 2.5Gps; UI = 400ps
50ps/div
*PRBS = PSEUDORANDOM BIT SEQUENCE
†GEN I; 2.5Gps; UI = 400ps
_______________________________________________________________________________________
5
MAX4888/MAX4889
Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
2.5Gbps PCI Express Passive Switches
MAX4888/MAX4889
Pin Description
PIN
6
NAME
FUNCTION
MAX4888
MAX4889
1, 10, 12, 14,
20, 25, 27
1, 4, 10, 14, 17,
19, 21, 39, 41
GND
2
3, 9
4
5
6
7
9
—
2
3
6
7
SEL
N.C.
COM1+
COM1COM2+
COM2-
8, 11, 13, 19,
26, 28
5, 8, 13, 18,
20, 30,
40, 42
V+
15
31
NO2-
Analog Switch 2. Normally Open Negative Terminal.
16
32
NO2+
Analog Switch 2. Normally Open Positive Terminal.
17
33
NO1-
Analog Switch 1. Normally Open Negative Terminal.
18
34
NO1+
Analog Switch 1. Normally Open Positive Terminal.
Ground
Digital Control Input
No Connection. Not internally connected.
Analog Switch 1. Common Positive Terminal.
Analog Switch 1. Common Negative Terminal.
Analog Switch 2. Common Positive Terminal.
Analog Switch 2. Common Negative Terminal.
Positive-Supply Voltage Input. Connect V+ to a 1.65V to 3.6V supply voltage.
Bypass V+ to GND with a 0.1µF capacitor placed as close to the device as possible.
(See the Board Layout section).
21
35
NC2-
Analog Switch 2. Normally Closed Negative Terminal.
22
36
NC2+
Analog Switch 2. Normally Closed Positive Terminal.
23
37
NC1-
Analog Switch 1. Normally Closed Negative Terminal.
24
38
NC1+
Analog Switch 1. Normally Closed Positive Terminal.
—
11
COM3+
Analog Switch 3. Common Positive Terminal.
—
12
COM3-
Analog Switch 3. Common Negative Terminal.
—
15
COM4+
Analog Switch 4. Common Positive Terminal.
—
16
COM4-
Analog Switch 4. Common Negative Terminal.
—
22
NO4-
—
23
NO4+
Analog Switch 4. Normally Open Positive Terminal.
—
24
NO3-
Analog Switch 3. Normally Open Negative Terminal.
—
25
NO3+
Analog Switch 3. Normally Open Positive Terminal.
—
26
NC4-
Analog Switch 4. Normally Closed Negative Terminal.
—
27
NC4+
Analog Switch 4. Normally Closed Positive Terminal.
—
28
NC3-
Analog Switch 3. Normally Closed Negative Terminal.
—
29
NC3+
EP
EP
EP
Analog Switch 4. Normally Open Negative Terminal.
Analog Switch 3. Normally Closed Positive Terminal.
Exposed Paddle. Connect EP to GND.
_______________________________________________________________________________________
2.5Gbps PCI Express Passive Switches
MAX4888/MAX4889
3.3V
VN_
LOGIC
INPUT
V+
COM_
NO_
OR NC_
50%
VIL
VOUT
RL
t OFF
CL
SEL
VOUT
GND
LOGIC
INPUT
t r < 5ns
t f < 5ns
VIH
SWITCH
OUTPUT
0.9 x V0UT
0.9 x VOUT
0V
t ON
CL INCLUDES FIXTURE AND STRAY CAPACITANCE.
RL
RL + RON
VOUT = VN_
(
)
VN_ = VNO_ OR VNC_
Figure 1. Switching Time
_______________________________________________________________________________________
7
MAX4888/MAX4889
Test Circuits/Timing Diagrams
2.5Gbps PCI Express Passive Switches
MAX4888/MAX4889
Test Circuits/Timing Diagrams (continued)
3.3V
V+
RS
IN+
MAX4888/MAX4889
NO_+ OR
NC_+
COM_+
OUT+
RISE-TIME PROPAGATION DELAY = tPLHX OR tPLHY
FALL-TIME PROPAGATION DELAY = tPHLX OR tPHLY
RL
RS
IN-
NO_- OR
NC_-
tSK1 = DIFFERENCE IN PROPAGATION DELAY (RISE-FALL)
BETWEEN ANY TWO PAIRS
COM_-
tSK2 = | tPLHX - tPHLY | OR | tPHLX - tPLHY |
BETWEEN TWO LINES ON THE SAME PAIR
OUTRL
SEL
tINFALL
tINRISE
1.5V
90%
VIN+
50%
90%
50%
10%
0V
10%
1.5V
VIN-
50%
50%
0V
tOUTRISE
tPLHX
tOUTFALL
tPHLX
1.5V
90%
VOUT+
90%
50%
50%
10%
0V
10%
1.5V
50%
VOUT-
50%
0V
tPHLY
tPLHY
Figure 2. Propagation Delay and Output Skew
8
_______________________________________________________________________________________
2.5Gbps PCI Express Passive Switches
3.3V 0.1μF
V
OFF-ISOLATION = 20log OUT
VIN
NETWORK
ANALYZER
0V OR V+
V+
SEL
NC_
50Ω
VIN
COM_
50Ω
MAX4888/MAX4889
VOUT
NO_
50Ω
MEAS
REF
50Ω
ON-LOSS = 20log
VOUT
VIN
CROSSTALK = 20log
VOUT
VIN
50Ω
GND
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM_ AND "OFF" NO_ OR NC_ TERMINAL ON EACH SWITCH.
ON-LOSS IS MEASURED BETWEEN COM_ AND "ON" NO_ OR NC_ TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED BETWEEN ANY TWO PAIRS.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 3. On-Loss, Off-Isolation, and Crosstalk
0.1μF
sets of eight lanes from a single 16-lane bus. The
MAX4888/MAX4889 feature a single digital control input
(SEL) to switch signal paths.
The MAX4888/MAX4889 are fully specified to operate
from a single 3.0V to 3.6V power supply and also operate down to 1.65V.
3.3V
V+
COM_
MAX4888/MAX4889
Digital Control Input (SEL)
SEL
CAPACITANCE
METER
VIL OR VIH
NC_ or
NO_
GND
The MAX4888/MAX4889 provide a single digital control
input (SEL) to select the signal path between the
COM__ and NO__/NC__ channels. The truth tables for
the MAX4888/MAX4889 are depicted in the Functional
Diagrams/Truth Table section. Drive SEL rail-to-rail to
minimize power consumption.
Analog Signal Levels
Figure 4. Channel Off-/On-Capacitance
Detailed Description
The MAX4888/MAX4889 high-speed passive switches
route PCIe data between two possible destinations. The
MAX4888/MAX4889 are ideal for routing PCIe signals to
change the system configuration. For example, in a
graphics application, the MAX4888/MAX4889 create two
The MAX4888/MAX4889 accept standard PCIe signals
to a maximum of V+ - 1.2V. Signals on the COM_+
channels are routed to either the NO_+ or NC_+ channels, and signals on the COM_- channels are routed to
either the NO_- or NC_- channels. The MAX4888/
MAX4889 are bidirectional switches, allowing COM__,
NO__, and NC__ to be used as either inputs or outputs.
_______________________________________________________________________________________
9
MAX4888/MAX4889
Test Circuits/Timing Diagrams (continued)
2.5Gbps PCI Express Passive Switches
MAX4888/MAX4889
Functional Diagrams/Truth Table
V+
V+
MAX4888
MAX4889
COM1+
NC1+
COM1+
NC1+
COM1-
NC1-
COM1-
NC1-
NO1+
NO1+
NO1-
NO1-
COM2+
NC2+
COM2+
NC2+
COM2-
NC2-
COM2-
NC2-
SEL
NO2+
NO2+
NO2-
NO2COM3+
NC3+
COM3-
NC3NO3+
GND
NO3SEL
COM__ TO COM__ TO
NC__
NO__
0
ON
OFF
1
OFF
ON
COM4+
NC4+
COM4-
NC4NO4+
NO4-
SEL
GND
10
______________________________________________________________________________________
2.5Gbps PCI Express Passive Switches
DATA
DIRECTION
PCIe Switching
The MAX4888/MAX4889 primary applications are aimed
at reallocating PCIe lanes (see Figure 5). For example,
in graphics applications, several manufacturers have
found that it is possible to improve performance by a
factor of nearly two by splitting a single 16-lane PCIe
bus into two 8-lane buses. Two of the more prominent
examples are SLI™ (Scaled Link Interface) and
CrossFire™. The MAX4889 permits a computer motherboard to operate properly with a single 16-lane graphics card, and can later be updated to dual cards. The
same motherboard can be used with dual cards where
the user sets a jumper or a bit through software to
switch between single- or dual-card operation.
MAX4888/MAX4889
Applications Information
ONE LANE
MAX4888
MAX4889
DATA IS ROUTED
TO EITHER
BOARD A OR B
NOTE: ONLY ONE LANE IS SHOWN FOR CLARITY
Board Layout
High-speed switches require proper layout and design
procedures for optimum performance. Keep designcontrolled impedance PCB traces as short as possible
or follow impedance layouts per the PCIe specification.
Ensure that power-supply bypass capacitors are
placed as close to the device as possible. Multiple
bypass capacitors are recommended. Connect all
grounds and the exposed pad to large ground planes.
A
B
Figure 5. The MAX4888/MAX4889 Used as a Single-Lane
Switch
Chip Information
PROCESS: CMOS
CrossFire™ is a trademark of ATI Technologies, Inc.
SLI™ is a trademark of NVIDIA Corporation.
______________________________________________________________________________________
11
2.5Gbps PCI Express Passive Switches
MAX4888/MAX4889
Typical Application Circuit
PCIe GRAPHICS INTERFACE
GRAPHICS
CARD 1
PCIe BUS
LANE 0 TX
COM1+
NC1+
COM1-
NC1NC2+
COM2+
LANE 1 TX
COM2-
MAX4889
LANE 3 TX
NC2NC3+
COM3+
LANE 2 TX
GRAPHICS
CARD 2
COM3-
NC3-
COM4+
NC4+
NC4-
COM4-
NO1+
NO1NO2+
NO2NO3+
NO3NO4+
SEL
NO4-
CHANNEL SELECT
COM1+
LANE 0 RX
LANE 1 RX
LANE 2 RX
LANE 3 RX
NC1+
COM1-
NC1-
COM2+
NC2+
COM2-
MAX4889
NC2-
COM3+
NC3+
COM3-
NC3-
COM4+
NC4+
COM4-
NC4NO1+
NO1NO2+
NO2NO3+
NO3NO4+
SEL
NO4-
CHANNEL SELECT
12
______________________________________________________________________________________
2.5Gbps PCI Express Passive Switches
______________________________________________________________________________________
28L THIN QFN.EPS
°
13
MAX4888/MAX4889
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
MAX4888/MAX4889
2.5Gbps PCI Express Passive Switches
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
14
______________________________________________________________________________________
2.5Gbps PCI Express Passive Switches
______________________________________________________________________________________
42L THIN QFN.EPS
°
15
MAX4888/MAX4889
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
MAX4888/MAX4889
2.5Gbps PCI Express Passive Switches
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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