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SMSC USB2512Ai Chapter 1 Pin Configuration, Figure 1.1 USB2512Ai 36-PinQFN (Embedded Footprint)

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Industrial Temperature Rated USB 2.0 Hi-Speed 2-Port Hub Controller

Datasheet

Chapter 1 Pin Configuration

	VBUS DET	RESET N	HS IND/CFG SEL1	SCL/SMBCLK/CFG SEL0	VDD33	SDA/SMBDATA/NON REM1	NC	NC	NC
	27	26	25	24	23	22	21	20	19
SUSP_IND/LOCAL_PWR/NON_REM0	28								18	NC
VDDA33	29								17	OCS2_N
USBUP_DM	30			SMSC					16	PRTPWR2
USBUP_DP	31			SMSC					15	VDD33CR
USBUP_DP	31		USB2512Ai						15	VDD33CR
XTAL2	32		USB2512Ai						14	VDD18
XTAL2	32	Embedded Footprint							14	VDD18
XTAL1/CLKIN	33	Embedded Footprint							13	OCS1_N
XTAL1/CLKIN	33	(Top View QFN-36)							13	OCS1_N
VDD18PLL	34	(Top View QFN-36)							12	PRTPWR1
VDD18PLL	34			Thermal Slug					12	PRTPWR1
RBIAS	35			Thermal Slug					11	TEST
RBIAS	35	(must be connected to VSS)							11	TEST
		(must be connected to VSS)
VDD33PLL	36								10	VDDA33
	1 2 3 4 5 6 7 8 9
	USBDN1 DM	USBDN1 DP	USBDN2 DM	USBDN2 DP	VDDA33	NC	NC	NC	NC

Indicates pins on the bottom of the device.

Figure 1.1 USB2512Ai 36-Pin QFN (Embedded Footprint)

Revision 1.97 (08-11-08)	6	SMSC USB2512Ai
	DATASHEET

Contents

USB2512Ai PRODUCT FEATURES General Description General Features Hardware Features ORDER NUMBER: USB2512Ai-AEZGFOR 36 PIN, QFN LEAD-FREEROHS COMPLIANT PACKAGE Table of Contents Chapter List of Figures List of Tables Chapter 1 Pin Configuration Chapter 2 Block Diagram Chapter 3 Pin Descriptions 3.1Pin Descriptions Table 3.1 USB2512Ai Pin Descriptions (continued) SERIAL PORT INTERFACE MISC Page Table 3.2 SMBus or EEPROM Interface Behavior CFG_SEL1 CFG_SEL0 SMBUS OR EEPROM INTERFACE BEHAVIOR Table 3.3 Power, Ground, and No Connect 3.2Buffer Type Descriptions Chapter 4 Configuration Options 4.12-PortHub 4.1.1Hub Configuration Options 4.1.1.1Power Switching Polarity 4.1.2VBus Detect 4.2.1.1Register 00h: Vendor ID (LSB) 4.2.1.2Register 01h: Vendor ID (MSB) 4.2.1.3Register 02h: Product ID (LSB) 4.2.1.4Register 03h: Product ID (MSB) 4.2.1.5Register 04h: Device ID (LSB) 4.2.1.6Register 05h: Device ID (MSB) 4.2.1.7Register 06h: CONFIG_BYTE_1 4.2.1.8Register 07h: Configuration Data Byte 4.2.1.9Register 08h: Configuration Data Byte 4.2.1.10Register 09h: Non-RemovableDevice Register 0Ah: Port Disable For Self-PoweredOperation 4.2.1.12Register 0Bh: Port Disable For Bus-PoweredOperation 4.2.1.13Register 0Ch: Max Power For Self-PoweredOperation 4.2.1.14Register 0Dh: Max Power For Bus-PoweredOperation 4.2.1.15Register 0Eh: Hub Controller Max Current For Self-PoweredOperation 4.2.1.16Register 0Fh: Hub Controller Max Current For Bus-PoweredOperation 4.2.1.17Register 10h: Power-OnTime 4.2.1.18Register F6h: Boost_Up 4.2.1.19Register F8h: Boost_2:0 4.2.1.20Register FAh: Port Swap Register FBh: Port Remap 4.2.1.22Register FFh: Status/Command 4.2.2 I2C EEPROM 4.2.2.1Implementation Characteristics 4.2.2.2Pull-UpResistor 4.2.2.3I2C EEPROM Slave Address 4.2.3In-CircuitEEPROM Programming 4.3SMBus Slave Interface 4.3.1Bus Protocols 4.3.1.1Block Read/Write 4.3.2Invalid Protocol Response Behavior 4.3.3General Call Address Response 4.3.4Slave Device Time-Out 4.3.5Stretching the SCLK Signal 4.3.6SMBus Timing 4.4Default Configuration Option: 4.5Default Strapping Options: 4.6Reset 4.6.1Internal POR Hardware Reset 4.6.2External Hardware RESET_N 4.6.2.1RESET_N for Strapping Option Configuration 4.6.2.2RESET_N for EEPROM Configuration 4.6.2.3RESET_N for SMBus Slave Configuration 4.6.3USB Bus Reset Page Chapter 5 DC Parameters 5.1Maximum Guaranteed Ratings 5.2Operating Conditions Table 5.1 DC Electrical Characteristics (continued) ICLK Input Buffer O12, I/O12 &I/OSD12 Type Buffer IO-U CAPACITANCE TA = 25°C; fc = 1MHz; VDD18, VDDPLL Chapter 6 AC Specifications 6.1Oscillator/Clock 6.1.1SMBus Interface: 6.1.2I2C EEPROM: 6.1.3USB RevisionChapter 7 Package Outline