The MAX14502AETL+T from Maxim Integrated (now part of Analog Devices) is a Hi-Speed USB-to-SD card reader with bypass, built to bridge a USB host controller directly to SD and SDHC memory cards.
Engineers designing portable consumer electronics, such as cell phones, digital cameras, and handheld GPS units, can rely on this device to add SD card support without extra firmware overhead on the host processor.
The MAX14502AETL+T belongs to Maxim's MAX1450x family of USB-to-SD bridge controllers, alongside the MAX14500, MAX14501, and MAX14503.
Here's a closer look at what this device offers:
Key Features of the MAX14502AETL+T
Hi-Speed USB-to-SD Bridging
The MAX14502AETL+T provides an internal Hi-Speed USB SD card reader, handling the USB-to-SD protocol conversion on-chip. This eases host microprocessor overhead and removes the need for a dedicated software driver.
USB 2.0 Hi-Speed and Full-Speed Compliance
The device supports both USB 2.0 Hi-Speed and Full-Speed operation, giving designers flexibility across a range of host USB controllers and connection speeds.
SDHC Card Support
Beyond standard SD cards, the MAX14502AETL+T supports SDHC cards, extending the compatible storage capacity for applications that require larger storage capacity.
Flexible Control Modes
A simple control mode needs only a single GPIO line, while an I2C interface provides access to multiple configuration options. This lets engineers choose the level of control complexity that fits their design.
Compact TQFN-40 Package
The MAX14502AETL+T ships in a 40-pin TQFN package with an exposed pad, measuring 5mm by 5mm. This surface-mount footprint suits dense, space-constrained PCB layouts.
RoHS Compliant, Pb-Free Construction
The device is lead-free and RoHS compliant, meeting environmental compliance standards required in most modern electronics manufacturing.
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