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PDF MAX3341E Data sheet ( Hoja de datos )
| Número de pieza | MAX3341E | |
| Descripción | +-15kV ESD-Protected USB Level Translator in UCSP with USB Detect | |
| Fabricantes | Maxim Integrated Products | |
| Logotipo |  |
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19-2321; Rev 0; 4/02
www.DataSheet4U.com
±15kV ESD-Protected USB Level Translator in
UCSP with USB Detect
General Description
The MAX3341E USB level translator converts logic-level
signals to USB signals, and USB signals to logic-level
signals. An internal 1.5kΩ USB termination resistor sup-
ports full-speed (12Mbps) USB operation. The
MAX3341E provides built-in ±15kV ESD-protection cir-
cuitry on the USB I/O pins, D+ and D-, and VCC.
The MAX3341E operates with logic supply voltages as
low as 1.8V, 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 is fully compliant with USB
specification 1.1, and full-speed operation under USB
specification 2.0.
The MAX3341E has a USB detect that monitors the
USB bus for insertion and signals this event.
The MAX3341E is available in the miniature 4 ✕ 4
UCSP™, as well as the small 16-pin TSSOP, and is
specified over the extended temperature range, -40°C
to +85°C.
Cell Phones
PC Peripherals
Information Appliances
Data Cradles
PDAs
MP3 Players
Digital Cameras
Applications
UCSP is a trademark of Maxim Integrated Products, Inc.
Features
o ±15kV ESD Protection On D+ and D-
o Complies with USB Standard 1.1 (Full Speed 2.0)
o USB Skew Independent of Input Skew
o Separate VP and VM Inputs/Outputs
o VL Down to 1.8V Allows Connection with Low-
Voltage ASICs
o Reenumerate with Power Applied
o USB Detect Function
o Allows Single-Ended or Differential Logic I/O
o Internal Linear Regulator Allows Direct Powering
from the USB
o Internal Termination Resistor for Full-Speed
Operation
o Three-State Outputs
o No Power-Supply Sequencing Required
o Driver Active in Suspend Mode
o Available in Miniature Chip-Scale Package
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX3341EEUD
MAX3341EEBE*
-40°C to +85°C
-40°C to +85°C
16 TSSOP
4 ✕ 4 UCSP**
*Future product—contact factory for availability.
**UCSP reliability is integrally linked to the user’s assembly
methods, circuit board material, and environment. See the
UCSP Reliability Notice in the UCSP Reliability section of this
data sheet for more information.
Pin Configurations appear at end of data sheet.
Typical Operating Circuit
1µF
SYSTEM
SUPPLY
VOLTAGE
0.1µF
SYSTEM INTERFACE
VL
RCV MAX3341E
VPI
VMI
SUSPEND
OE
USB_DET
MODE
ENUMERATE
VPO
VMO GND
VCC
D+
D-
VTRM
23.7Ω
23.7Ω
VBUS
D+
D-
GND
1µF USB
INTERFACE
CONNECTOR
________________________________________________________________ Maxim Integrated Products 1
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.
1 page  
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±15kV ESD-Protected USB Level Translator in
UCSP with USB Detect
Typical Operating Characteristics (continued)
(VCC = 5V, VL = 3.3V, TA = +25°C, unless otherwise noted.)
LOGIC CURRENT CONSUMPTION IN
SUSPEND MODE
9
8
7
6
5
4
3
1.8
2.3 2.8
VL (V)
3.3
CURRENT CONSUMPTION IN
SUSPEND MODE
25.5
25.0
24.5
24.0
23.5
23.0
22.5
22.0
4.00 4.25 4.50 4.75 5.00 5.25 5.50
VCC (V)
VTRM vs. VCC
3.5
IVTRM = 15mA
3.4
3.3
3.2
3.1
3.0
4.00 4.25 4.50 4.75 5.00 5.25 5.50
VCC (V)
RISE-AND-FALL TIME MATCHING
MAX3341 toc10
f = 6MHz
D+
1V/div
D-
SUSP
0
2V/div
RCV
0
SUSPEND RESPONSE
MAX3341 toc11
TRANSMISSION IN SUSPEND MODE
(SUSP = 1)
MAX3341 toc12
VPO
VMO
2V/div
D+
D-
20ns/div
VCC
2V/div
0
USB_DET
0
100ns/div
USB_DET RESPONSE
MAX3341 toc13
2µs/div
10µs/div
_______________________________________________________________________________________ 5
5 Page 
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±15kV ESD-Protected USB Level Translator in
UCSP with USB Detect
D+
D-
tPHL(RCV)
RCV
tPHL(SE)
VPI
tPLH(SE)
VMI
D+/D- RISE/FALL TIMES ≤ 8ns, VL = 1.8V, 2.5V, 3.3V
Figure 5. D+/D- to RCV, VPI, VMI Propagation Delays
3V
0V
tPLH(RCV)
VL
VL/2
0V
tPLH(SE)
VL
VL/2
0V
tPHL(SE)
VL
VL/2
0V
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet MAX3341E.PDF ] | |
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