GL3221 is a super speed USB 3.1 Gen 1 compliant Mulit-LUN card reader controller which can support various types of memory cards, such as CompactFlashTM, SDHC, miniSD, microSD (T-Flash), MultiMediaCardTM (MMC), RS-MMC, MMCmicro, MMCmobile, Memory StickTM (MS), Memory Stick DuoTM (MS Duo), High Speed Memory StickTM (HS MS), Memory Stick PROTM (MS PRO), Memory Stick PROTM Duo (MS PRO Duo), Memory Stick PRO-HGTM (MS PRO-HG) and MS PRO Micro card on one chip. It also supports next generation high density memory cards (Capacity up to 2TB), such as SDXC and Memory Stick XC, and next generation high speed memory cards, SD3.0 UHS-I cards.
The GL3221 integrates a high speed 8051 microprocessor and a high efficiency hardware engine for the best data transfer performance between USB and various memory card interfaces. It supports ISP (In System Programming) for firmware upgrade from the external SPI Flash via USB port. It also integrates 5V to 3.3V and 3.3V to 1.2V regulators and power MOSFETs which can reduce the system BOM cost.
● USB specification compliance
● Integrated USB building blocks
● Embedded high speed 8051 micro-controller
● High efficient DMA hardware engine improves transfer rate between USB and flash card interfaces
● Support CompactFlashTM v6.0 with PIO mode 6 / Ultra DMA mode 7 and LBA48 (Capacity up to 144PB)
● Support Ssecure DigitalTM v1.0 / v1.1 / v2.0/ SDHC / SDXC (Capacity up to 2TB)
● Support Secure DigitalTM v3.0 UHS-I (Ultra High Speed): SDR12/SDR25/SDR50/DDR50/SDR104
● Compliant with MultiMediaCardTM (MMC)
● Support Memory StickTM / Memory Stick PRO / Memory Stick PRO Duo / Memory Stick Micro /Memory Stick PRO-HG / Memory Stick XC (Capacity up to 32GB)
● Support ISP (In System Programming) for firmware upgrade from the external SPI Flash via USB port
● On-Chip power MOSFETs for supplying flash media card power
● On-chip 5V to 3.3V and 3.3V to 1.2V regulator
● On board 25 MHz Crystal driver circuit
● Pass WHCK (Windows Hardware Certification Kit) test for Windows 8 (Submission ID: 1513299)
● Pass WHCK (Windows Hardware Certification Kit) test for Windows 8 ARM (Submission ID: 1551618)
● Pass WHQL (Windows Hardware Quality Lab) test for Windows 7 (Submission ID: 1448613)
GL3221 Dual LUNs Product Selection Guide
|Supporting Cards||Package||Version Naming Rule|
|SD/MS||48QFN/48LQFP||01, 02, 03…|
|SD/CF||80LQFP||01, 02, 03…|
|SD/SD||48QFN/48LQFP||10, 20, 30…|
Note1: Version is showed with the last two character of the second line of marking information.