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).FAQs: MAX3420E
|MAX3420E||3.3||30||12||0 to 26||1.4 to 3.6|
|-40 to +85||$4.23 @1k|
|See All USB Controllers (2)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
|Tutorial||5884||Turn Any Video Game Controller into a USB Mouse|
|Reference Schematic||5244||Modern PRTD Temperature Sensors and High-Resolution Delta-Sigma ADCs Enable Wide Range High-Accuracy Temperature Measurements|
|App Note||3937||Setting Up the Maxim USB Laboratory|
|App Note||3936||The Maxim USB Laboratory|
|App Note||3891||Isolating USB|
|App Note||3803||Practical USB Terminology|
|App Note||3690||USB enumeration code (and more) for the MAX3420E|
|App Note||3663||Bringing Up a MAX3420E System|
|App Note||3661||The MAX3420E Interrupt System|
|App Note||3637||Add USB to Anything|
|App Note||3598||MAX3420E Programming Guide|
|App Note||3597||Frequently Asked Questions About the MAX3420E|
|App Note||3592||MAX3420E Information Card|
|Reference Circuit||5244||Modern PRTD Temperature Sensors and High-Resolution Delta-Sigma ADCs Enable Wide Range High-Accuracy Temperature Measurements|
|Evaluation Board||4660||MAX3420EEVKIT-2 Evaluation Kit for the MAX3420E|