參數(shù)資料
型號: MAX3421EEHJ+T
廠商: Maxim Integrated Products
文件頁數(shù): 1/28頁
文件大小: 0K
描述: IC USB PERIPH/HOST CNTRL 32TQFP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
控制器類型: USB 外設(shè)控制器
接口: USB/串行
電源電壓: 3 V ~ 3.6 V
電流 - 電源: 15mA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 32-TQFP
供應(yīng)商設(shè)備封裝: 32-TQFP(5x5)
包裝: 帶卷 (TR)
配用: MAX3421EVKIT-1+-ND - EVAL KIT FOR MAX3421E
19-3953; Rev 4; 7/13
MAX3421E
USB Peripheral/Host Controller
with SPI Interface
EVALUATION KIT AVAILABLE
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
General Description
The MAX3421E USB peripheral/host controller contains
the digital logic and analog circuitry necessary to
implement a full-speed USB peripheral or a full-/low-
speed host compliant to USB specification rev 2.0. A
built-in transceiver features ±15kV ESD protection and
programmable USB connect and disconnect. An inter-
nal serial interface engine (SIE) handles low-level USB
protocol details such as error checking and bus retries.
The MAX3421E operates using a register set accessed
by an SPI interface that operates up to 26MHz. Any SPI
master (microprocessor, ASIC, DSP, etc.) can add USB
peripheral or host functionality using the simple 3- or 4-
wire SPI interface.
The MAX3421E makes the vast collection of USB
peripherals available to any microprocessor, ASIC, or
DSP when it operates as a USB host. For point-to-point
solutions, for example, a USB keyboard or mouse inter-
faced to an embedded system, the firmware that oper-
ates the MAX3421E can be simple since only a
targeted device is supported.
Internal level translators allow the SPI interface to run at
a system voltage between 1.4V and 3.6V. USB-timed
operations are done inside the MAX3421E with inter-
rupts provided at completion so an SPI master does not
need timers to meet USB timing requirements. The
MAX3421E includes eight general-purpose inputs and
outputs so any microprocessor that uses I/O pins to
implement the SPI interface can reclaim the I/O pins
and gain additional ones.
The MAX3421E operates over the extended -40°C to
+85°C temperature range and is available in a 32-pin
TQFP package (5mm x 5mm) and a 32-pin TQFN pack-
age (5mm x 5mm).
Applications
Features
o Microprocessor-Independent USB Solution
o Software Compatible with the MAX3420E USB
Peripheral Controller with SPI Interface
o Complies with USB Specification Revision 2.0
(Full-Speed 12Mbps Peripheral, Full-/Low-Speed
12Mbps/1.5Mbps Host)
o Integrated USB Transceiver
o Firmware/Hardware Control of an Internal D+
Pullup Resistor (Peripheral Mode) and D+/D-
Pulldown Resistors (Host Mode)
o Programmable 3- or 4-Wire, 26MHz SPI Interface
o Level Translators and VL Input Allow Independent
System Interface Voltage
o Internal Comparator Detects VBUS for Self-
Powered Peripheral Applications
o ESD Protection on D+, D-, and VBCOMP
o Interrupt Output Pin (Level- or Programmable-
Edge) Allows Polled or Interrupt-Driven SPI
Interface
o Eight General-Purpose Inputs and Eight General-
Purpose Outputs
o Interrupt Signal for General-Purpose Input Pins,
Programmable Edge Polarity
o Intelligent USB SIE
o Automatically Handles USB Flow Control and
Double Buffering
o Handles Low-Level USB Signaling Details
o Contains Timers for USB Time-Sensitive
Operations so SPI Master Does Not Need to Time
Events
o Space-Saving Lead-Free TQFP and TQFN
Packages (5mm x 5mm)
Embedded Systems
Medical Devices
Microprocessors and
DSPs
Custom USB Devices
Cameras
Desktop Routers
PLCs
Set-Top Boxes
PDAs
MP3 Players
Instrumentation
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX3421EEHJ+
-40°C to +85°C
32 TQFP
MAX3421EETJ+
-40°C to +85°C
32 TQFN-EP*BTBG
Ordering Information
*
EP = Exposed pad.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
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