GL823K
USB 2.0 SD Card Reader Controller
Datasheet
Revision History
Table of Contents
CHAPTER 1GENERAL DESCRIPTION (6)
CHAPTER 2FEATURES (7)
CHAPTER 3PIN ASSIGMENT (8)
3.1SSOP16 Pinout (8)
3.2Pin Description (9)
CHAPTER 4BLOCK DIAGRAM (10)
4.1OCCS USB PHY (10)
4.2SIE (10)
4.3EPFIFO (10)
4.4MCU (10)
4.5MHE (11)
4.6Regulator (11)
4.7PMOS (11)
CHAPTER 5ELECTRICAL CHARACTERISTICS (12)
5.1Temperature Conditions (12)
5.2Operating Conditions (12)
5.3DC Characteristics (12)
5.4Memory Card Clock Frequency (12)
5.5Maximum Ratings (13)
CHAPTER 6PACKAGE DIMENSION (14)
CHAPTER 7ORDERING INFORMATION (15)
List of Figures
Figure 3.1 – SSOP 16 Pinout Diagram (8)
Figure 6.1 – SSOP 16 Pin Package (150 mil) (14)
List of Tables
GL甜文推荐
Table 3.1 – Pin Description (9)
Table 4.1 – Functional Block Diagram (10)
Table 5.1 – Temperature Conditions (12)
Table 5.2 – Operating Conditions (12)
Table 5.3 – DC Characteristics (12)
Table 5.4 – SD/MMC Card Clock Frequency (12)
Table 5.5 – Maximum Ratings (13)
Table 7.1 – Ordering Information (15)
CHAPTER 1GENERAL DESCRIPTION
The GL823K is a USB 2.0 Single-LUN card reader controller which can support SD/MMC Flash Memory Cards. It supports USB 2.0 high-speed transmission to Secure Digital TM(SD), SDHC, SDXC, miniSD TM, microSD TM(T-Flash), MultiMediaCard TM (MMC), RS MultiMediaCard TM (RS MMC), MMCmicro , HS-MMC and MMCmobile. As a single chip solution for USB 2.0 flash card reader, the GL823K complies with Universal Serial Bus specification rev. 2.0, USB Storage Class Specification ver.1.0, and each flash card interface specification.
The GL823K integrates a high speed 8051 microprocessor and a high efficiency hardware engine for the best data transfer performance between USB and flash card interfaces. Its pin assignment design fits to card sockets to provide easier PCB layout. Inside the chip, it integrates 5V to 3.3V regulator, 3.3V to 1.8V regulator and power MOSFETs and it enables the function of on-chip clock source (OCCS) which means no external 12MHz XTAL is needed and that effectively reduces the total BOM cost.
The GL823K implements USB disconnect function; it can be used for Mobile cable/ OTG reader/ PC card reader application.
CHAPTER 2FEATURES
●USB specification compliance
-Comply with 480Mbps Universal Serial Bus specification rev. 2.0
-Comply with USB Storage Class specification rev. 1.0
-Support one device address and up to four endpoints: Control (0)/Bulk Read (1)/Bulk Write (2)/Interrupt (3) ●Integrated USB building blocks
-USB2.0 transceiver macro (UTM), Serial Interface Engine (SIE), Build-in power-on reset (POR) and low-voltage detector (LVD)
●Embedded 8051 micro-controller
-Operate @ 60 MHz clock, 12 clocks per instruction cycle
-Embedded mask ROM and internal SRAM
●Secure Digital TM (SD) and MultiMediaCard TM (MMC)
-Supports SD specification v1.0 / v1.1 / v2.0 / SDHC (Up to 32GB)
-Compatible with SDXC (Up to 2TB)
-Supports MMC specification v3.x / v4.0 / v4.1 / v4.2
-Supports 1 / 4 bit data bus
-Compliant with Secure Digital TM v5.0
●Support boost mode for SD3.0 for better performance
●Support non-SD Card Detect pin, non-MS Insertion/Removal pin design to save BOM cost
●Support non-SD Write Protection pin design to save BOM cost
●Support LED function to indicate power and access status
●On chip clock source and no need of 12MHz Crystal Clock input
●On-Chip 5V to 3.3V and 3.3V to 1.8V regulators
●On-Chip power MOSFET for supplying flash media card power
●Support USB disconnection by memory card unplug or manual switch for Mobile cable/ OTG reader/ PC
card reader application
●Available in SSOP16 package (150 mil)