USB97C202-MN-05

Controllers Overview

The SMSC USB97C202-MN-05 is a USB 2.0 Flash Drive Controller designed to interface SmartMedia and NAND flash devices with the USB 2.0 bus. It operates on a 2.5 Volt low-power core with 3.3 Volt I/O that tolerates 5V inputs. The device includes a complete USB 2.0 transceiver, a bi-directional control endpoint, and a double-buffered bi-directional bulk endpoint with a 512-byte buffer. It features an internal or external program memory interface, supporting up to 48K bytes of internal code space or 64K bytes externally. Built-in hardware supports 1-bit ECC for data integrity.

Controllers Feature Summary

• Provides a complete system solution for interfacing SmartMedia and NAND flash devices to the USB 2.0 bus
• Supports USB Bulk Only Mass Storage compliant bootable BIOS functionality
• Includes built-in hardware 1-bit ECC support for data protection
• Features an internal PLL for 480MHz USB sampling and a 30MHz MCU clock

Controllers Applications

• USB 2.0 Flash Drive Controllers
• SmartMedia (SM) to USB interfaces
• NAND Flash to USB interfaces

Controllers Procurement Notes

Verify the specific suffix -MN-05 against manufacturer documentation to confirm package type and temperature range. Ensure firmware compatibility with the target flash media. Confirm RoHS compliance status if required by the end application. Check for lead-free packaging specifications during procurement.

Controllers Selection Notes

Select this controller when interfacing SmartMedia or NAND flash to USB 2.0 is required. Consider the 2.5V core voltage and 3.3V I/O requirements for power budgeting. Evaluate the need for internal versus external program memory based on firmware size. Verify GPIO availability for LED indicators or power control needs.

Controllers Part Context

The USB97C202 belongs to the SMSC USB97 series of USB 2.0 flash drive controllers. This family provides solutions for connecting various flash memory types to USB hosts. The component integrates a microcontroller, USB transceiver, and memory interfaces into a single chip to reduce system complexity.

Controllers Replacement Considerations

Direct drop-in replacements within the same footprint may include other variants from the USB97 series, such as the USB97C211, provided pinout and electrical characteristics match. Verify functional equivalence for SmartMedia and NAND support before substitution.