Maxim Integrated MAX14502A High-Speed USB-to-SD
Card Reader with Bypass
Featuring Pass-Thru and Card Reader operation modes
Maxim Integrated's MAX14502A Hi-Speed USB
-to-
SD card readers
with
Bypass
upgrade the
USB SD card reader
function of portable devices to
USB Hi-Speed
(480Mbps) operation.
Maxim Integrated MAX14502A card readers
accommodate clock input frequencies of 19.2MHz and feature USB 2.0 Hi-Speed and Full-Speed compliance and SDHC card support. The
MAX14502A
features pass thru and
card reader
modes of operation. The
card
reader
mode allows the
MAX14502A
to implement a Hi-Speed
USB card readerMaxim IC USB
-to-
SD card
readers
that operates independently of the host microprocessor. This mode preserves all the capabilities of the full-speed USB port and SD card slot while allowing a faster way for a PC to read or write to the SD card. These feature advanced power-saving modes to reduce power consumption in portable applications.
Part Number
|
Description
|
|
MAX14502AETL+
|
Interface - Specialized IC HI-SP USB SD CARD READERS W/BYPASS
|
KEY 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
-
Internal SD switches allow for multiplexing two SD cards on a single-microprocessor SD port
-
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
-
I
2
C control provides multiple configuration options
-
I
2
C control required for two SD cards
-
On-chip power-on reset/brown-out reset
|
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APPLICATIONS/USES
:
-
Cell Phones
-
Digital Still Cameras
-
GPS
-
MP3 Players
-
PDAs
|
