19-2321; Rev 2; 2/03
1ꢀ5k EꢁDꢂ-rotected UꢁB Level Transceivers
in UCꢁ- with UꢁB Detect
General Description
Features
The MAX3341E/MAX3342E USB transceivers convert
logic-level signals to USB signals, and USB signals to
logic-level signals. An internal 1.5kΩ USB termination
resistor supports full-speed (12Mbps) USB operation.
The MAX3341E/MAX3342E provide built-in 15kꢀ ESꢁ-
protection circuitry on the USB I/O pins, ꢁ+ and ꢁ-,
ꢀ ±±15kV ESVꢀProteoꢁrꢂVꢃꢂVSDVꢄꢂnVSꢅV
ꢀ CrmplyVwꢁohVUEBVEoꢄꢂnꢄPnV±.±V(FullVEpttnV2.0)
ꢀ UEBVE5twVIꢂntptꢂntꢂoVrfVIꢂpuoVE5tw
ꢀ EtpꢄPꢄotVkꢀVꢄꢂnVkMVIꢂpuos/ꢃuopuos
ꢀ k SrwꢂVorV±.8kVAllrwsVCrꢂꢂteoꢁrꢂVwꢁohVLrwꢅ
L
krloꢄgtVAEICs
and ꢀ
.
CC
ꢀ RttꢂumtPꢄotVwꢁohVꢀrwtPVApplꢁtn
ꢀ UEBVStoteoVFuꢂeoꢁrꢂ
The MAX3341E/MAX3342E operate with logic supply
voltages as low as 1.8ꢀ, ensuring compatibility with
low-voltage ASICs. The suspend mode lowers supply
current to less than 50µA. A unique enumerate feature
allows changes in USB communication protocol while
power is applied. The MAX3341E/MAX3342E are fully
compliant with USB specification 1.1, and full-speed
operation under USB specification 2.0.
3.7kV(mꢁꢂ)VorV4kV(mꢄx)—MAX334±
±kV(mꢁꢂ)VorV2.8kV(mꢄx)—MAX3342
ꢀ AllrwVEꢁꢂgltꢅ ꢂntnVrPVSꢁfftPtꢂoꢁꢄlVLrgꢁeVI/ꢃV
ꢀ IꢂotPꢂꢄlVLꢁꢂtꢄPVRtgulꢄorPVAllrwsVSꢁPteoVꢀrwtPꢁꢂg
fPrmVohtVUEBV
ꢀ IꢂotPꢂꢄlVTtPmꢁꢂꢄoꢁrꢂVRtsꢁsorPVfrPVFullꢅEpttn
ꢃptPꢄoꢁrꢂ
ꢀ ThPttꢅEoꢄotVꢃuopuos
The MAX3341E/MAX3342E have a USB detect that mon-
itors the USB bus for insertion and signals this event. The
MAX3341E USB_ꢁET threshold is between 3.7ꢀ (min)
and 4ꢀ (max), while the MAX3342E USB_ꢁET threshold
is between 1ꢀ (min) and 2.8ꢀ (max).
ꢀ NrVꢀrwtPꢅEupplyVEtqutꢂeꢁꢂgVRtquꢁPtnV
ꢀ SPꢁvtPVAeoꢁvtVꢁꢂVEusptꢂnVMrnt
ꢀ AvꢄꢁlꢄbltVꢁꢂVMꢁꢂꢁꢄouPtVChꢁpꢅEeꢄltVꢀꢄe5ꢄgt
The MAX3341E/MAX3342E are available in the miniature
4 ✕ 4 UCSP™, as well as the small 16-pin TSSOP, and
are specified over the extended temperature range,
-40°C to +85°C.
Applications
Ordering Information
Cell Phones
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 TSSOP
PC Peripherals
Information Appliances
ꢁata Cradles
PꢁAs
MAX3341EEUE
MAX3341EEBE-T
MAX3342EEUE
MAX3342EEBE-T
4 x 4 UCSP
16 TSSOP
4 x 4 UCSP
MP3 Players
ꢁigital Cameras
UCSP is a trademark of Maxim Integrated Products, Inc.
Pin Configurations appear at end of data sheet.
Typical Operating Circuit
1µF
V
BUS
D+
SYSTEM
V
CC
D+
V
RCV
VPI
VMI
SUSPEND
OE
L
23.7Ω
23.7Ω
SUPPLY
MAX3341E/
MAX3342E
0.1µF
VOLTAGE
D-
D-
GND
VTRM
SYSTEM INTERFACE
USB_DET
1µF
USB
INTERFACE
CONNECTOR
MODE
ENUMERATE
VPO
VMO
GND
________________________________________________________________ Maxim Integrated Products
±
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.