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TUSB2046B

TUSB2046BI

www.ti.com

SLLS413I –FEBRUARY 2000–REVISED SEPTEMBER 2013

4-PORT HUB FOR THE UNIVERSAL SERIAL BUS

WITH OPTIONAL SERIAL EEPROM INTERFACE

Check for Samples: TUSB2046B, TUSB2046BI

FEATURES

• Fully Compliant With the USB Specification as

a Full-Speed Hub: TID #30220231

• 32-Terminal LQFP

(1)

Package With a 0.8-mm

Terminal Pitch or QFN Package with a 0.5-mm

Terminal Pitch

• 3.3-V Low Power ASIC Logic

• Integrated USB Transceivers

• State Machine Implementation Requires No

Firmware Programming

• One Upstream Port and Four Downstream

Ports

• All Downstream Ports Support Full-Speed and

Low-Speed Operations

• Two Power Source Modes

– Self-Powered Mode

– Bus-Powered Mode

• Power Switching and Overcurrent Reporting Is

Provided Ganged or Per Port

• Supports Suspend and Resume Operations

• Supports Programmable Vendor ID and

Product ID With External Serial EEPROM

• 3-State EEPROM Interface Allows EEPROM

Sharing

• Push-Pull Outputs for PWRON Eliminate the

Need for External Pullup Resistors

• Noise Filtering on OVRCUR Provides Immunity

to Voltage Spikes

• Package Pinout Allows 2-Layer PCB

• Low EMI Emission Achieved by a 6-MHz

Crystal Input

• Migrated From Proven TUSB2040 Hub

• Lower Cost Than the TUSB2040 Hub

• Enhanced System ESD Performance

• No Special Driver Requirements; Works

Seamlessly With Any Operating System With

USB Stack Support

• Supports 6-MHz Operation Through a Crystal

Input or a 48-MHz Input Clock

(1) JEDEC descriptor S-PQFP-G for low profile quad flat pack

(LQFP).

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (25 pages)

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TUSB2046B TUSB2046BI www.ti.com SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 4-PORT HUB FOR THE UNIVERSAL SERIAL BUS WITH OPTIONAL SERIAL EEPROM INTERFACE Check for Samples: TUSB2046B, TUSB2046BI FEATURES 1 • • • • • • • • • • • • • • • • • • • • • (1) Fully Compliant With the USB Specification as a Full-Speed Hub: TID #30220231 32-Terminal LQFP (1) Package With a 0.8-mm Terminal Pitch or QFN Package with a 0.5-mm Terminal Pitch 3.
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TUSB2046B TUSB2046BI SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 www.ti.com DESCRIPTION/ORDERING INFORMATION The TUSB2046B is a 3.3-V CMOS hub device that provides one upstream port and four downstream ports in compliance with the Universal Serial Bus (USB) specification as a full-speed hub. Because this device is implemented with a digital state machine instead of a microcontroller, no firmware programming is required.
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TUSB2046B TUSB2046BI www.ti.
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TUSB2046B TUSB2046BI SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 www.ti.com TERMINAL FUNCTIONS TERMINAL NAME BUSPWR DM0 DM1–DM4 DP0 DP1–DP4 EECLK NO. I/O DESCRIPTION 8 I Power source indicator. BUSPWR is an active-high input that indicates whether the downstream ports source their power from the USB cable or a local power supply. For the bus-power mode, this terminal must be pulled to 3.3 V, and for the self-powered mode, this terminal must be pulled low.
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TUSB2046B TUSB2046BI www.ti.com SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) MIN (2) MAX UNIT VCC Supply voltage range –0.5 3.6 V VI Input voltage range –0.5 VCC + 0.5 V VO Output voltage range –0.5 VCC + 0.
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TUSB2046B TUSB2046BI SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 www.ti.com THERMAL INFORMATION TUSB2046BI THERMAL METRIC (1) RHB UNITS 32 PINS Junction-to-ambient thermal resistance (2) θJA 35.7 (3) θJCtop Junction-to-case (top) thermal resistance θJB Junction-to-board thermal resistance (4) 9.9 ψJT Junction-to-top characterization parameter (5) 0.5 ψJB Junction-to-board characterization parameter (6) 9.8 θJCbot Junction-to-case (bottom) thermal resistance (7) 4.
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TUSB2046B TUSB2046BI www.ti.com SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 ELECTRICAL CHARACTERISTICS over recommended ranges of operating free-air temperature and supply voltage (unless otherwise noted) PARAMETER TEST CONDITIONS TTL/LVCMOS VOH High-level output voltage USB data lines TTL/LVCMOS VOL Low-level output voltage USB data lines IOH = –4 mA MIN 2.8 V VCC – 0.5 IOL = 4 mA 0.5 R(DRV) = 1.5 kΩ to 3.6 V 0.3 IOL = 12 mA (without R(DRV)) 0.
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TUSB2046B TUSB2046BI SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 www.ti.com 22 Ω 1.5 kΩ 15 kΩ 22 Ω 15 kΩ Figure 1. Differential Driver Switching Load V ID - Diff erential Receiver Input Sensitivity - V Figure 2. Differential Driver Timing Waveforms 1.5 1.3 1 0.5 0.2 0 0 3 1 2 3.6 0.8 2.5 VICR - Common Mode Input Rang e - V 4 Figure 3. Differential Receiver Input Sensitivity vs Common Mode Input Range Vhys Logic high VCC VIH VIT+ VIT- VIL Logic low 0V Figure 4.
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TUSB2046B TUSB2046BI www.ti.com SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 APPLICATION INFORMATION A major advantage of USB is the ability to connect 127 functions configured in up to 6 logical layers (tiers) to a single personal computer (see Figure 5). PC With Root Hub Monitor With 4-Port Hub (Self-Powered) Printer With 4-Port Hub (Self-Powered) Scanner Digital Scanner Figure 5.
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TUSB2046B TUSB2046BI SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 www.ti.com USB Design Notes The following sections provide block diagram examples of how to implement the TUSB2046B device. Note, even though no resistors are shown, pullup, pulldown, and series resistors must be used to properly implement this device. Figure 6 is an example of how to generate the 6-MHz clock signal. CL XTAL1 XTAL2 C1 C2 NOTE: This figure assumes a 6-MHz fundamental crystal that is parallel loaded.
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TUSB2046B TUSB2046BI www.ti.com SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 TUSB2046B USB HUB 3.3 V 30 XTAL1 29 Open XTAL2 31 TSTMODE 48-MHz Oscillator or on Board Clock Source 27 TSTPLL/48MCLK Figure 8. 48-MHz Input Clock Configuration Figure 9 is a block diagram example of how to connect the external EEPROM if a custom product ID and vendor ID are desired. Figure 10 shows the EEPROM read operation timing diagram.
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TUSB2046B TUSB2046BI SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 www.ti.com Programming the EEPROM An SGS Thompson M93C46 EEPROM, or equivalent, stores the programmable VID and PID. When the EEPROM interface is enabled (EXTMEM = 0), the EECLK and EEDATA are internally pulled down (100 μA) inside the TUSB2046B. The internal pulldowns are disabled when the EEPROM interface is disabled (EXTMEM = 1). The EEPROM is programmed with the three 16-bit locations as shown in Table 1.
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TUSB2046B TUSB2046BI Hub Driving Data Line D C S Start Read OP Code(10) A5 Other Address Bits A1 6 Bit Address (000000) A0 Dummy Bit MSB of The First Word EEPROM Driving Data Line MSB of Fourth Word Other LSB of Data Bits Third Word XX D14 D15 48 Data Bits D0 Don’t Care SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 3-Stated With Internal Pulldown www.ti.com Figure 10.
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TUSB2046B TUSB2046BI SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 www.ti.com Bus-Powered Hub, Ganged-Port Power Management When used in bus-powered mode, the TUSB2046B supports up to four downstream ports by controlling a TPS2041 device which is capable of supplying 100 mA of current to each downstream port. Bus-powered hubs must implement power switching to ensure current demand is held below 100 mA when the hub is hot-plugged into the system.
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TUSB2046B TUSB2046BI www.ti.com SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 Self-Powered Hub, Ganged-Port Power Management The TUSB2046B can also be implemented for ganged-port power management in a self-powered configuration. The implementation is very similar to the bus-powered example with the exception that a self-powered port supplies 500 mA of current to each downstream port. The overcurrent protection can be provided by a TPS2044 quad device or a TPS2024 single power switch. 1.
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TUSB2046B TUSB2046BI SLLS413I – FEBRUARY 2000 – REVISED SEPTEMBER 2013 www.ti.com Self-Powered Hub, Individual-Port Power Management In a self-powered configuration, the TUSB2046B can be implemented for individual-port power management when used with the TPS2044, because it is capable of supplying 500 mA of current to each downstream port and can provide current limiting on a per-port basis.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 19-Sep-2013 (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device.
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PACKAGE MATERIALS INFORMATION www.ti.com 6-Sep-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing TUSB2046BIRHBR VQFN RHB 32 TUSB2046BIRHBT VQFN RHB TUSB2046BIVFR LQFP VF TUSB2046BVFR LQFP VF SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 8.0 12.0 Q2 3000 330.0 12.4 5.3 5.3 1.5 32 250 180.0 12.4 5.3 5.3 1.5 8.0 12.0 Q2 32 1000 330.0 16.4 9.6 9.6 1.9 12.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 6-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TUSB2046BIRHBR VQFN RHB 32 3000 338.1 338.1 20.6 TUSB2046BIRHBT VQFN RHB 32 250 210.0 185.0 35.0 TUSB2046BIVFR LQFP VF 32 1000 367.0 367.0 38.0 TUSB2046BVFR LQFP VF 32 1000 336.6 336.6 31.
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MECHANICAL DATA MTQF002B – JANUARY 1995 – REVISED MAY 2000 VF (S-PQFP-G32) PLASTIC QUAD FLATPACK 0,45 0,25 0,80 24 0,20 M 17 25 16 32 9 0,13 NOM 1 8 5,60 TYP 7,20 SQ 6,80 9,20 SQ 8,80 Gage Plane 0,05 MIN 0,25 0°– 7° 1,45 1,35 Seating Plane 0,75 0,45 0,10 1,60 MAX 4040172/D 04/00 NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.