SDIO101IHR,515

Controllers Overview

The SDIO101IHR,515 is an SD/SDIO/MMC/CE-ATA host controller manufactured by NXP USA Inc. It features a standard 16-bit asynchronous memory interface and supports full-speed (<25 MHz) and high-speed (<52 MHz) data transmissions. The device includes a built-in 2 kB double data buffer and supports slave-DMA transfer operations. It operates with separate supply voltages: 2.5 V to 3.3 V for the host interface (VDD(IO)), 1.8 V for the core (VDD), and 1.8 V to 3.3 V for the SD port (VDD(SD)). The component is housed in a 60-terminal HXQFN60U plastic thermal enhanced extremely thin quad flat package.

Controllers Feature Summary

• Supports SD, SDIO, MMC, and CE-ATA protocols compliant with respective standards versions.
• Integrates an on-board PLL and fractional divider for flexible clock generation from external sources.
• Provides five levels of power saving, including Hibernate and Coma modes for low-power applications.
• Features programmable drive strength and pull-up resistors for optimized signal integrity.

Controllers Applications

• Microprocessor systems requiring SD/SDIO/MMC/CE-ATA host functionality.
• Portable devices needing efficient communication with storage cards via DMA.
• Power-critical embedded applications utilizing low-power sleep modes.

Controllers Procurement Notes

Verify the specific ordering suffix

Controllers Selection Notes

Select this component when a 16-bit asynchronous interface is required for SD/SDIO/MultiMediaCard connectivity. Ensure the host system supports the necessary voltage domains (1.8 V core, 2.5–3.3 V I/O). Consider the HXQFN60U package constraints for PCB layout and thermal management. Verify that the host processor can provide the required X1_CLK input or crystal oscillator connection for the internal PLL.

Controllers Part Context

The SDIO101IHR,515 belongs to the SDIO101 family of host controllers from NXP Semiconductors. This series is designed to add SD/SDIO/MMC/CE-ATA host capabilities to microprocessor systems using a standard 16-bit asynchronous memory interface. The IHR suffix denotes the specific HXQFN60U package variant with 60 terminals.

Controllers Replacement Considerations

Consult NXP documentation for direct pin-compatible replacements within the SDIO101 family. Verify interface compatibility and voltage levels if considering alternative host controllers from other manufacturers.