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Data Sheet

FULL DATA SHEET (PDF, 372kB) Download   E-Mail

Errata

Errata MAX3420E MAX3420E_REV0.pdf

Description

The MAX3420E contains the digital logic and analog circuitry necessary to implement a full-speed USB peripheral compliant to USB specification rev 2.0. A built-in full-speed transceiver features ±15kV ESD protection and programmable USB connect and disconnect. An internal serial-interface engine (SIE) handles low-level USB protocol details such as error checking and bus retries. The MAX3420E 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 functionality using the simple 3- or 4-wire SPI interface. Internal level translators allow the SPI interface to run at a system voltage between 1.71V and 3.6V. USB timed operations are done inside the MAX3420E with interrupts provided at completion so an SPI master does not need timers to meet USB timing requirements. The MAX3420E includes four 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 MAX3420E operates over the extended -40°C to +85°C temperature range and is available in a 32-pin LQFP package (7mm x 7mm) and a space-saving 24-pin TQFN package (4mm x 4mm).

Key Features		Applications/Uses
Microprocessor-Independent USB Solution Complies with USB Specification Revision 2.0 (Full-Speed Operation) Integrated Full-Speed USB Transceiver Firmware/Hardware Control of an Internal D+ Pullup Resistor Programmable 3- or 4-Wire 26MHz SPI Interface Level Translators and VL Input Allow Independent System Interface Voltage Internal Comparator Detects VBUS for Self-Powered Applications ESD Protection on D+, D-, and VBCOMP Interrupt Output Pin (Level or Programmable Edge) Allows Polled or Interrupt-Driven SPI Interface Intelligent USB Serial-Interface Engine (SIE) Automatically Handles USB Flow Control and Double Buffering Handles Low-Level USB Signaling Details Contains Timers for USB Time-Sensitive Operations So SPI Master Does Not Need to Time Events Built-In Endpoint FIFOs EP0: CONTROL (64 Bytes) EP1: OUT, Bulk or Interrupt, 2 x 64 Bytes (Double-Buffered) EP2: IN, Bulk or Interrupt, 2 x 64 Bytes (Double-Buffered) EP3: IN, Bulk or Interrupt (64 Bytes) Double-Buffered Data Endpoints Increase Throughput by Allowing the SPI Master to Transfer Data Concurrently with USB Transfers Over the Same Endpoint SETUP Data Has Its Own 8-Byte FIFO, Simplifying Firmware Four General-Purpose Inputs and Four General-Purpose Outputs Space-Saving LQFP and TQFN Packages		Cameras Cell Phones Custom USB Devices Desktop Routers Instrumentation Microprocessors and DSPs MP3 Players PC Peripherals PDAs PLCs Set-Top Boxes

Diagram

Typical Application Circuit

Application Notes

Application Note 3592: MAX3420E Information Card - MAX3420E Application Note 3597: Frequently Asked Questions About the MAX3420E - MAX3420E Application Note 3598: MAX3420E Programming Guide - MAX3420E Application Note 3637: Add USB to Anything - MAX3420E Application Note 3661: The MAX3420E Interrupt System - MAX3420E Application Note 3663: Bringing Up a MAX3420E System - MAX3420E Application Note 3690: USB Enumeration Code (and More) for the MAX3420E - MAX3420E Application Note 3803: Practical USB Terminology - MAX3420E Application Note 3891: Isolating USB - MAX3420E Application Note 3936: The Maxim USB Laboratory - MAX3420E Application Note 3937: Setting Up the Maxim USB Laboratory - MAX3420E

Evaluation Kits

MAX3420EEVKIT-2

Reliability Reports

Show FIT data for: MAX3420E Request Reliability Report for: MAX3420E

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-8 of 8
MAX3420E	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX3420EECJ			LQFP;32 pin; Dwg: 21-0054 (PDF) Use pkgcode/variation: C32-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX3420EECJ-T				-40°C to +85°C	See data sheet
MAX3420EECJ+			LQFP;32 pin; Dwg: 21-0054 (PDF) Use pkgcode/variation: C32+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3420EECJ+T			LQFP;32 pin; Dwg: 21-0054 (PDF) Use pkgcode/variation: C32+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3420EETG+T			THIN QFN;24 pin; Dwg: 21-0139 (PDF) Use pkgcode/variation: T2444+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3420EETG+			THIN QFN;24 pin; Dwg: 21-0139 (PDF) Use pkgcode/variation: T2444+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX3420EETG			THIN QFN;24 pin; Dwg: 21-0139 (PDF) Use pkgcode/variation: T2444-4*	-40°C to +85°C	See data sheet Materials Analysis
MAX3420EETG-T				-40°C to +85°C	See data sheet

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