MAX4889:2.5Gbps PCI Express Passive Switches

High-Speed PCI Express Passive Switches Enable Gen I Switching

The MAX4888/MAX4889 high-speed passive switches route PCI Express® (PCIe) data between two possible destinations. The MAX4888 is a quad single-pole/double-throw (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.

Key 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
MAX4888, MAX4889: Typical Application Circuit
MAX4888, MAX4889: Typical Application Circuit
Applications/Uses
  • Desktop Computers
  • Laptops
  • Servers/Storage Area Networks
DataSheet
titleDownload file
MAX4888-MAX4889 Data SheetMAX4888-MAX4889.pdf
Parametrics
Part NumberProtocolConfig.ChannelsVSUPPLY (Single)
(V)
VSUPPLY (Single)
(V)
VSIGNAL
(V)
VSIGNAL
(V)
Dynamic Range (max)
(V)
RON
(Ω)
RFLAT(ON)
(Ω)
RFLAT(ON)
(Ω)
Bandwidth
(MHz)
tON
(ns)
tOFF
(ns)
CON
(pF)
COFF
(pF)
Package/PinsBudgetary
Price
minmaxminmaxmaxmaxtypmaxminmaxSee Notes
MAX4888PCIe2-to-141.63.6-0.12.42.570.06212502505021TQFN-CU/28
TQFN/28
$2.28 @1k
MAX48898TQFN/42$2.65 @1k
Design kits & evaluation modules
Quality and Environmental Data
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4889ETONo Longer AvailableMAX4889ETO+QFN;-40°C to +85°CSee data sheet
MAX4889ETO+ActiveTQFN,;42 pin;32.8 mm²-40°C to +85°CLead Free
MAX4889ETO+TActiveTQFN,;42 pin;32.8 mm²-40°C to +85°CLead Free
MAX4889ETO-TNo Longer AvailableMAX4889ETO+TQFN;-40°C to +85°CSee data sheet
MAX4888-MAX4889.pdf MAX4889
MAX4888-MAX4889_cn.pdf MAX4889
MAX4889.pdf MAX4889
MAX4888-MAX4889_cn.pdf MAX4889