MAX4999_11 Datasheet, PDF (1/11 Pages) Maxim Integrated Products – USB 2.0 Hi-Speed Differential 8:1 Multiplexer Small 32-Pin, 5mm x 5mm, TQFN Package

19-4127; Rev 1; 6/11
USB 2.0 Hi-Speed Differential
8:1 Multiplexer
General Description
The MAX4999 differential Hi-Speed USB analog multi-
plexer features low on-capacitance (C_ON) switching,
making it an ideal solution for the USB server/mass
storage market. The MAX4999 is designed for USB 2.0
low-/full-/Hi-Speed applications with capability of sup-
porting data rates up to 480Mbps.
The MAX4999 is a differential 8:1 multiplexer. The
MAX4999 features three digital inputs to control the sig-
nal path. Typical applications include switching a USB
connector between eight USB hosts and a USB device.
An enable input (EN) is provided to disable all channels
and place the device into a high-impedance state
(standby mode), shutting off the charge pump for mini-
mum power consumption.
The MAX4999 operates from a +3.0V to +3.6V power-
supply voltage and is specified over the -40°C to +85°C
extended temperature range. The MAX4999 is available
in a 5mm x 5mm, 32-pin TQFN package.
Applications
Keyboard, Video, Mouse (KVM)
Servers/RAID
Mass Storage
Workstations
Features
o Single +3.0V to +3.6V Power-Supply Voltage
o Low 6.5Ω (typ) On-Resistance (R_ON)
o -3dB Bandwidth: 1200MHz (typ)
o Enable Input Puts All Channels in High-
Impedance State (Standby Mode)
o Low Operating Current (1µA) and Ultra-Low
Quiescent Current (30nA) in Standby Mode
o Low Threshold Eliminates the Need for
Translators in 1.8V Low-Voltage Systems
o Small 32-Pin, 5mm x 5mm, TQFN Package
Ordering Information
PART
TEMP RANGE
MAX4999ETJ+
-40°C to +85°C
+Denotes a lead-free package.
*EP = Exposed pad.
PIN-PACKAGE
32 TQFN-EP*
Pin Configuration
TOP VIEW
24 23 22 21 20 19 18 17
D5_1 25
16 D2_1
D5_0 26
15 D2_0
GND 27
14 GND
D6_1 28
D6_0 29
MAX4999
13 D1_1
12 D1_0
GND 30
D7_1 31
11 GND
*EP
10 D0_1
D7_0 32
9 D0_0
1 2345678
TQFN
5mm x 5mm
*CONNECT EXPOSED PAD TO GND.
________________________________________________________________ Maxim Integrated Products 1
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.