參數(shù)資料
型號： MAX3349EA
廠商： Maxim Integrated Products, Inc.
英文描述： USB 2.0 Full-Speed Transceiver with UART Multiplexing Mode
中文描述： USB 2.0全速收發(fā)器，提供UART復用模式
文件頁數(shù)： 1/17頁
文件大小： 397K
代理商： MAX3349EA
General Description
The MAX3349EA ±15kV ESD-protected, USB transceiv-
er provides a full-speed USB interface to a lower voltage
microprocessor or ASIC. The device supports enumera-
tion, suspend, and VBUS detection. A special UART
multiplexing mode routes external UART signals (Rx and
Tx) to D+ and D-, allowing the use of a shared connec-
tor to reduce cost and part count for mobile devices.
The UART interface allows mobile devices such as
PDAs, cellular phones, and digital cameras to use either
UART or USB signaling through the same connector.
The MAX3349EA features a separate UART voltage sup-
ply input to support legacy devices using +2.75V signal-
ing. The MAX3349EA supports a maximum UART baud
rate of 921kbaud.
Upon connection to a USB host, the MAX3349EA enters
USB mode and provides a full-speed USB 2.0 compliant
interface through VP, VM, RCV, and
OE
. The
MAX3349EA features internal series termination resistors
on D+ and D-, and an internal 1.5k
pullup resistor to
D+ to allow the device to logically connect and discon-
nect from the USB while plugged in. A suspend mode is
provided for low-power operation. D+ and D- are pro-
tected from electrostatic discharge (ESD) up to ±15kV.
The MAX3349EA is available in 16-pin TQFN (4mm x
4mm) and 16-bump UCSP (2mm x 2mm) packages,
and is specified over the -40°C to +85°C extended tem-
perature range.
Applications
Cell Phones
PDAs
Digital Cameras
MP3 Players
Features
±15kV ESD HBM Protection on D+ and D-
UART Mode Routes External UART Signals to
D+/D-
Internal Linear Regulator Allows Direct Powering
from the USB Cable
Separate Voltage Input for UART
Transmitter/Receiver (V
UART
)
Internal 1.5k
Pullup Resistor on D+ Controlled
by Enumerate Input
Internal Series Termination Resistors on D+ and D-
Complies with USB Specification Revision 2.0,
Full-Speed 12Mbps Operation
Built-In Level Shifting Down to +1.4V, Ensuring
Compatibility with Low-Voltage ASICs
V
BUS
Detection
Combined VP and VM Inputs/Outputs
No Power-Supply Sequencing Required
Available in 16-Bump UCSP (2mm x 2mm)
Package
Ordering Information
M
USB 2.0 Full-Speed Transceiver with UART
Multiplexing Mode
________________________________________________________________
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.
1
19-0667; Rev 0; 10/06
TQFN-EP (4mm x 4mm)
*EXPOSED PADDLE—CONNECT TO GND OR LEAVE UNCONNECTED.
ENUM
16
1
2
3
4
12
11
10
9
15
14
13
5
6
7
8
VM
V
L
V
TRM
V
B
D
D
G
R
T
B
VP
RCV
OE
SUS
V
U
MAX3349EA
TOP VIEW
*EP
+
UCSP (2mm x 2mm)
(BUMPS ON BOTTOM OF DIE)
MAX3349EA
TOP VIEW
A
B
C
1
2
3
RX
TX
V
UART
VP
V
L
ENUM
SUS
V
TRM
BD
VM
RCV
OE
4
D
D+
D-
V
BUS
GND
+
+ DENOTES LEAD-FREE PACKAGE.
PART
PIN-PACKAGE
16 UCSP
16 TQFN-EP*
PKG CODE
B16-1
T1644-4
MAX3349EAEBE+T
MAX3349EAETE**
Note:
All devices specified for the -40°C to +85°C extended
temperature range.
**
Future product—contact factory for availability.
*
EP = Exposed paddle.
+
Indicates lead-free package.
Pin Configurations
UCSP is a trademark of Maxim Integrated Products, Inc.
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相關代理商/技術參數(shù)
參數(shù)描述
MAX3349EAEBE+ 制造商:Maxim Integrated Products 功能描述:
MAX3349EAEBE+T 功能描述:USB 接口集成電路 USB 2.0 Full-Speed Transceiver RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20
MAX3349EAEBE+TG47 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX3349EEBE 制造商:Maxim Integrated Products 功能描述:USB 2.0 FULL-SPEED TRANSCEIVER WITH - Rail/Tube
MAX3349EEBE+ 制造商:Maxim Integrated Products 功能描述:USB 2.0 FULL-SPEED TRANSCEIVER WITH - Rail/Tube 制造商:Maxim Integrated Products 功能描述:USB 2.0 FULL-SPEED TRANSCEIVER WITH UART 制造商:Rochester Electronics LLC 功能描述:
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