MAX14502
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MAX14502

Hi-Speed USB-to-SD Card Readers with Bypass

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Add Hi-Speed USB to FS-USB Application, No Software Driver Needed

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price
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Features
  • USB 2.0 Hi-Speed and Full-Speed Compliant
  • SDHC Card Support
  • Internal Hi-Speed USB SD Card Reader Eases Host µP Overhead
  • On-Chip Termination and Pullup Resistors
  • Accommodates Clock Input Frequencies
    • 26MHz, 19.2MHz, 13MHz, and 12MHz
  • Internal Clock Squarer for Low-Amplitude TCXO Signals
  • No Power-Supply Sequencing Required
  • Compatible with +1.8V to +3.3V I/O Host Microprocessor
  • Simple Control Mode Requires Only a Single GPIO
  • I²C Control Provides Multiple Configuration Options
  • On-Chip Power-On Reset/Brown-Out Reset
Additional Details
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The MAX14500–MAX14503 USB-to-SD™ card readers provide a means for portable devices that support full-speed USB communication (12Mbps) with one or two SD card slots, upgrading the USB SD card reader function to USB Hi-Speed (480Mbps) operation. The MAX14500–MAX14503 have two modes of operation: Pass Thru and Card Reader. In pass thru, the SD and USB signals pass through the MAX14500–MAX14503 without modification, appearing like the device is not present. The host microprocessor firmware does not need modification, as there is no change from the host microprocessor's perspective. In Card Reader mode, the MAX14500–MAX14503 implement a Hi-Speed USB card reader that operates independently of the host microprocessor. All the capabilities of the full-speed USB port and SD card slot are preserved with the additional feature that allows a faster way for a PC to read or write to the SD card. The MAX14500–MAX14503 support SD high capacity SDHC cards. The 40-pin TQFN version supports one SD card, while the 56-bump WLP version supports two SD cards.

The MAX14500–MAX14503 feature advanced power-saving modes to reduce power consumption in portable applications. The low-power Sleep modes allow the ability to disable internal circuit blocks, providing power-saving operating modes. The default clock input for each part number is specified in the ordering information. The MAX14500–MAX14503 feature the option to change the default values using the I²C interface.

The MAX14502 is available in a 5mm × 5mm, 40-pin TQFN package. This device operates over a wide supply voltage range and are specified over the -40°C to +85°C extended temperature range.

Applications

  • Cell Phones
  • Digital Still Cameras
  • GPS
  • MP3 Players
  • PDAs
Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA). To request an NDA, click here.
Part Models 2
1ku List Price
price unavailable

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX14502AETL+
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MAX14502AETL+T
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Product Lifecycle

PCN

Jun 20, 2016

- 1612

ASSEMBLY

MAX14502AETL+

PRODUCTION

MAX14502AETL+T

PRODUCTION

Jan 7, 2014

- 1363

ASSEMBLY

MAX14502AETL+

PRODUCTION

MAX14502AETL+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Jun 20, 2016

- 1612

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ASSEMBLY

MAX14502AETL+

PRODUCTION

MAX14502AETL+T

PRODUCTION

Jan 7, 2014

- 1363

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ASSEMBLY

MAX14502AETL+

PRODUCTION

MAX14502AETL+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

MAX14502EVKIT

Evaluation Kit for the MAX14502

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MAX14502EVKIT

Evaluation Kit for the MAX14502

Evaluation Kit for the MAX14502

Features and Benefits

  • Simple and I²C Control Modes
  • On-Board SD Card Socket, USB Type-A, and USB Type-B Connectors
  • Default 19.2MHz Input Clock, Alternative Input Clock Connector Provided
  • External Microprocessor Connections Provided
  • Windows 2000/XP- and Windows Vista (32-Bit)-Compatible Software
  • On-Board USB-to-I²C Bridge
  • USB Powered (Cable Included)
  • Lead(Pb)-Free and RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX14502 evaluation kit (EV kit) provides a proven design to evaluate the MAX14502 Hi-Speed USB-to-SD card reader. The EV kit includes Windows® 2000/XP- and Windows Vista®-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the MAX14502.

The MAX14502 EV kit has a built-in USB-to-I²C bridge, allowing a PC to access the internal I²C registers of the MAX14502, as well as providing the power for the EV kit.

The MAX14502 EV kit PCB comes with a MAX14502AETL+ installed. The EV kit can also be used to evaluate the MAX14500AETL+, MAX14501AETL+, and MAX14503AETL+ by replacing the MAX14502AETL+, and changing the crystal oscillator frequency according to the device used or by applying an appropriate external clock on the SMA connector. Contact the factory for free samples of the MAX14500AETL+, MAX14501AETL+, and MAX14503AETL+.

Applications

  • Cell Phones
  • Digital Still Cameras
  • GPS
  • MP3 Players
  • PDAs

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