USB2504-JT

USB2504/USB2504A Integrated USB 2.0 Compatible 4-Port Hub Highlights • Integrated USB 2.0 Compatible 4-Port Hub - 4 Transaction Translators for highest performance - High-Speed (480Mbits/s), Full-Speed (12Mbits/s) and Low-Speed (1.5Mbits/s) compatible - Full power management with per port or ganged, selectable power control - Detects Bus-Power/Self-Power source and changes mode automatically • Complete USB Specification 2.0 Compatibility - Includes USB 2.0 Transceivers • VID/PID/DID, and Port Configuration for Hub via: - Single Serial I2C EEPROM - SMBus Slave Port • Default VID/PID/DID, allows functionality when configuration EEPROM is absent • Hardware Strapping options allow for configuration without an external EEPROM or SMBus Host • On-Board 24MHz Crystal Driver Circuit or 24 MHz external clock driver • Internal PLL for 480MHz USB 2.0 Sampling • Internal 1.8V Linear Voltage Regulator • Integrated USB termination and Pull-up/Pull-down resistors • Internal Short Circuit protection of USB differential signal pins • 1.8 Volt Low Power Core Operation • 3.3 Volt I/O with 5V Input Tolerance • 64-Pin LQFP RoHS compliant package  2007 - 2016 Microchip Technology Inc. DS000002250A-page 1 USB2504/USB2504A TO OUR VALUED CUSTOMERS It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and enhanced as new volumes and updates are introduced. If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors@microchip.com. We welcome your feedback. Most Current Data Sheet To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at: http://www.microchip.com You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page. The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000). Errata An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision of silicon and revision of document to which it applies. To determine if an errata sheet exists for a particular device, please check with one of the following: • Microchip’s Worldwide Web site; http://www.microchip.com • Your local Microchip sales office (see last page) When contacting a sales office, please specify which device, revision of silicon and data sheet (include -literature number) you are using. Customer Notification System Register on our web site at www.microchip.com to receive the most current information on all of our products. DS000002250A-page 2  2007 - 2016 Microchip Technology Inc. USB2504/USB2504A Table of Contents 1.0 Introduction ..................................................................................................................................................................................... 4 2.0 Pin Table 4-Port .............................................................................................................................................................................. 5 3.0 Pin Configuration 4-Port Hub .......................................................................................................................................................... 6 4.0 4-Port Hub Block Diagram .............................................................................................................................................................. 7 5.0 Functional Block Description ......................................................................................................................................................... 12 6.0 Backward Compatibility to the USB20H04 .................................................................................................................................... 30 7.0 XNOR Test .................................................................................................................................................................................... 31 8.0 DC Parameters ............................................................................................................................................................................. 32 9.0 AC Specifications .......................................................................................................................................................................... 36 10.0 Package Outline .......................................................................................................................................................................... 37 Appendix A: Data Sheet Revision History ........................................................................................................................................... 38 The Microchip Web Site ...................................................................................................................................................................... 39 Customer Change Notification Service ............................................................................................................................................... 39 Customer Support ............................................................................................................................................................................... 39 Product Identification System ............................................................................................................................................................. 40  2007 - 2016 Microchip Technology Inc. DS000002250A-page 3 USB2504/USB2504A 1.0 INTRODUCTION The Microchip 4-Port Hub is fully compliant with the USB 2.0 Specification and will attach to a USB host as a Full-Speed Hub or as a Full-/High-Speed Hub. The 4-Port Hub supports Low-Speed, Full-Speed, and High-Speed (if operating as a High-Speed Hub) downstream devices on all of the enabled downstream ports. A dedicated Transaction Translator (TT) is available for each downstream facing port. This architecture ensures maximum USB throughput for each connected device when operating with mixed-speed peripherals. The Hub works with an external USB power distribution switch device to control VBUS switching to downstream ports, and to limit current and sense over-current conditions. All required resistors on the USB ports are integrated into the Hub. This includes all series termination resistors on D+ and D– pins and all required pull-down and pull-up resistors on D+ and D– pins. The over-current sense inputs for the downstream facing ports have internal pull-up resistors. Throughout this document the upstream facing port of the hub will be referred to as the upstream port, and the downstream facing ports will be called the downstream ports. 1.1 OEM Selectable Features A default configuration is available in the USB2504/USB2504A following a reset. This configuration may be sufficient for some applications. Strapping option pins make it possible to modify a limited sub-set of the configuration options. The USB2504/USB2504A may also be configured by an external EEPROM or a microcontroller. When using the microcontroller interface, the Hub appears as an SMBus slave device. If the Hub is pin-strapped for external EEPROM configuration but no external EEPROM is present, then a value of ‘0’ will be written to all configuration data bit fields (the hub will attach to the host with all ‘0’ values). The 4-Port Hub supports several OEM selectable features: • Operation as a Self-Powered USB Hub or as a Bus-Powered USB Hub. • Operation as a Dynamic-Powered Hub (Hub operates as a Bus-Powered device if a local power source is not available and switches to Self-Powered operation when a local power source is available). • Multiple Transaction Translator (Multi-TT) or Single-TT support. • Optional OEM configuration via I2C EEPROM or via the industry standard SMBus interface from an external SMBus Host. • Port power switching on an individual or ganged basis. • Port over-current monitoring on an individual or ganged basis. • LED indicator support. • Compound device support (port is permanently hardwired to a downstream USB peripheral device). • Hardware strapping options enable configuration of the following features. - Non-Removable Ports - Port Power Polarity (active high or active low logic) - Port Disable - LED support - MTT enable - Ganged Vs Port power switching and over-current sensing DS000002250A-page 4  2007 - 2016 Microchip Technology Inc. USB2504/USB2504A 2.0 PIN TABLE 4-PORT TABLE 2-1: 4-PORT PIN TABLE FOR 64-LQFP UPSTREAM USB 2.0 INTERFACE (3 PINS) USBDP0 USBDN0 VBUS_DET 4-PORT USB 2.0 INTERFACE (26 PINS) USBDP1 USBDN1 USBDP2 USBDN2 USBDP3 USBDN3 USBDP4 USBDN4 GR1/ NON_REM0 GR2/ NON_REM1 GR3/ PRT_DIS0 GR4/ PRT_DIS1 AM1/ GANG_EN AM2/ MTT_EN AM3 AM4/ LED_EN PRTPWR1 PRTPWR2 PRTPWR3 PRTPWR4 OCS1_N OCS2_N OCS3_N OCS4_N PRTPWR_POL RBIAS SERIAL PORT INTERFACE (5 PINS) SDA/SMBDATA SCL/SMBCLK/ CFG_SEL2 CFG_SEL1 CFG_SEL0 MISC (8 PINS) XTAL1/CLKIN XTAL2 RESET_N SELF_PWR ATEST/ REG_EN CLKIN_EN TEST1 TEST0 POWER, GROUND (17 PINS) AND (5) NO CONNECT  2007 - 2016 Microchip Technology Inc. DS000002250A-page 5 USB2504/USB2504A PIN CONFIGURATION 4-PORT HUB RESET_N NC 33 SDA/SMBDATA CFG_SEL0 SCL/SMBCLK PRTPWR4 OCS4_N PRTPWR3 OCS3_N VSS VDD18 PRTPWR2 OCS2_N PRTPWR1 48 OCS1_N 4-PORT 64-PIN LQFP TEST1 FIGURE 3-1: CLKIN_EN 3.0 49 32 CFG_SEL1 NC TEST0 SELF_PWR VDD18 VBUS_DET VSS VSS VDD33 VDD18 GR1/NON_REM0 VSS AM1/GANG_EN USB2504 & USB2504A NC XTAL2 GR2/NON_REM1 AM2/MTT_EN XTAL1/CLKIN PRTPWR_POL CFG_SEL2 GR3/PRT_DIS0 VDDA18PLL AM3 VDDA33PLL GR4/PRT_DIS1 ATEST/REG_EN AM4/LED_EN RBIAS 17 VSS USBDN4 VDDA33 USBDP4 USBDP3 VSS USBDN3 USBDP2 USBDN2 VDDA33 USBDP1 USBDN1 VSS USBDP0 USBDN0 VDDA33 DS000002250A-page 6 NC 16 64 1 VSS NC  2007 - 2016 Microchip Technology Inc. USB2504/USB2504A 4.0 4-PORT HUB BLOCK DIAGRAM FIGURE 4-1: 4-PORT BLOCK DIAGRAM Upstream Upstream 24 MHz USB Data VBUS Crystal Upstream PHY VBUS Power Detect 3.3V To EEPROM Pin 1.8V Strapping or SMBus Master Cap Options SD SCL Internal Defaults Select 1.8V Reg. PLL Controller SIE Repeater TT #1 TT #2 Serial Interface TT #3 TT #4 Port Controller Routing Logic Port #1 Downstream OC Sense PHY #1 Switch Driver LED Drivers ... Downstream OC Switch/LED USB Data Sense Drivers TABLE 4-1: Port #4 Downstream OC Sense PHY #4 Switch Driver LED Drivers Downstream OC Switch/LED USB Data Sense Drivers 4-PORT HUB PIN DESCRIPTIONS Name Symbol Type Function UPSTREAM USB 2.0 INTERFACE USB Bus Data USBDN0 USBDP0 IO-U These pins connect to the upstream USB bus data signals. Detect Upstream VBUS Power VBUS_DET I/O12 Detects state of Upstream VBUS power. The Microchip Hub monitors VBUS_DET to determine when to assert the internal D+ pull-up resistor (signaling a connect event). When designing a detachable hub, this pin must be connected to the VBUS power pin of the USB port that is upstream of the hub. (Use of a weak pull-down resistor is recommended.) For self-powered applications with a permanently attached host, this pin must be pulled-up to either 3.3V or 5.0V (typically VDD33).  2007 - 2016 Microchip Technology Inc. DS000002250A-page 7 USB2504/USB2504A TABLE 4-1: 4-PORT HUB PIN DESCRIPTIONS (CONTINUED) Name Symbol Type Function 4-PORT USB 2.0 HUB INTERFACE High-Speed USB Data USBDN[4:1] USBDP[4:1] IO-U These pins connect to the downstream USB peripheral devices attached to the Hub’s ports. USB Power Enable PRTPWR[4:1] O12 Enables power to USB peripheral devices (downstream). The active signal level of the PRTPWR[4:1] pins is determined by the Power Polarity Strapping function of the PRTPWR_POL pin. Port 4:3 Green LED & Port Disable strapping option. GR[4:3]/ PRT_DIS[1:0] I/O12 Green indicator LED for ports 4 and 3. Will be active low when LED support is enabled via EEPROM or SMBus. If the hub is configured by the internal default configuration, these pins will be sampled at RESET_N negation to determine if ports [4:2] will be permanently disabled. Also, the active state of the LED’s will be determined as follows: PRT_DIS[1:0] = ‘00’, All ports are enabled, GR4 is active high, GR3 is active high. PRT_DIS[1:0] = ‘01’, Port 4 is disabled, GR4 is active high, GR3 is active low. PRT_DIS[1:0] = ‘10’, Ports 4 & 3 are disabled, GR4 is active low, GR3 is active high. PRT_DIS[1:0] = ‘11’, Ports 4, 3 & 2 are disabled, GR4 is active low, GR3 is active low. Port [2:1] Green LED & Port NonRemovable strapping option. GR[2:1]/ NON_REM[1:0] I/O12 Green indicator LED for ports 2 and 1. Will be active low when LED support is enabled via EEPROM or SMBus. If the hub is configured by the internal default configuration, these pins will be sampled at RESET_N negation to determine if ports [3:1] contain permanently attached (nonremovable) devices. Also, the active state of the LED’s will be determined as follows: NON_REM[1:0] = ‘00’, All ports are removable, GR2 is active high, GR1 is active high. NON_REM[1:0] = ‘01’, Port 1 is non-removable, GR2 is active high, GR1 is active low. NON_REM[1:0] = ‘10’, Ports 1 & 2 are non-removable, GR2 is active low, GR1 is active high. NON_REM[1:0] = ‘11’, Ports 1, 2, & 3 are non-removable, GR2 is active low, GR1 is active low. Port 4 Amber LED & LED Enable strapping option AM4/ LED_EN I/O12 Amber indicator LED for port 4. Will be active low when LED support is enabled via EEPROM or SMBus. If the hub is configured by the internal default configuration, this pin will be sampled at RESET_N negation to determine if LED support is enabled or disabled. Also, the active state of the LED will be determined as follows: ‘0’ = LED support is disabled, LED is inactive ‘1’ = LED Support is enabled, LED is active low. DS000002250A-page 8  2007 - 2016 Microchip Technology Inc. USB2504/USB2504A TABLE 4-1: 4-PORT HUB PIN DESCRIPTIONS (CONTINUED) Name Symbol Type Function Port 3 Amber LED AM3 I/O12 Amber indicator LED for port 3. Signal will be active low. Port 2 Amber LED & MTT Disable AM2/ MTT_EN I/O12 Amber indicator LED for port 2. Will be active low when LED support is enabled via EEPROM or SMBus. If the hub is configured by the internal default configuration, this pin will be sampled at RESET_N negation to determine if MTT support is disabled (STT only). Also, the active state of the LED will be determined as follows: ‘0’ = MTT support is disabled, LED is active high ‘1’ = MTT support is enabled, LED is active low. Port 1 Amber LED & Gang Power Switching and Current Sensing strapping option. AM1/ GANG_EN I/O12 Amber indicator LED for port 1, Will be active low when LED support is enabled via EEPROM or SMBus. If the hub is configured by the internal default configuration, this pin will be sampled at RESET_N negation to determine if downstream port power switching and current sensing are ganged, or individual port-by-port. Also, the active state of the LED will be determined as follows: ‘0’ = Port-by-port sensing & switching, LED is active high ‘1’ = Ganged sensing & switching, LED is active low. Port Power Polarity strapping. PRTPWR_POL I/O12 Port Power Polarity strapping determination for the active signal polarity of the [4:1]PRTPWR pins. While RESET_N is asserted, the logic state of this pin will (though the use of internal combinatorial logic) determine the active state of the [4:1]PRTPWR pins in order to ensure that downstream port power is not inadvertently enabled to inactive ports during a hardware reset. On the rising edge of RESET_N (see the applicable RESET_N timing table in Section 5.6.1), the logic value will be latched internally, and will retain the active signal polarity for the PRTPWR[4:1] pins. ‘1’ = PRTPWR[4:1]_P/N pins have an active ‘high’ polarity ‘0’ = PRTPWR[4:1]_P/N pins have an active ‘low’ polarity Over Current Sense OCS[4:1]_N IPU Input from external current monitor indicating an over-current condition. {Note: Contains internal pull-up to 3.3V supply} USB Transceiver Bias RBIAS I-R A 12.0k (resistor is attached from ground to this pin to set the transceiver’s internal bias settings. SERIAL PORT INTERFACE Serial Data/SMB Data SDA/SMBDATA IOSD12 (Serial Data)/(SMB Data) signal. Serial Clock/SMB Clock SCL/SMBCLK IOSD12 (Serial Clock)/(SMB Clock) signal. Configuration Programming Select CFG_SEL0 IOSD12 This multifunction pin is read on the rising edge of RESET_N negation and will determine the hub configuration method as described in Table 4-2. Configuration Programming Select CFG_SEL1 I This pin is read on the rising edge of RESET_N (see the applicable RESET_N timing table in Section 5.6.1) and will determine the hub configuration method as described in Table 4-2. Configuration Programming Select CFG_SEL2 I This pin is read on the rising edge of RESET_N negation and will determine the hub configuration method as described in Table 4-2.  2007 - 2016 Microchip Technology Inc. DS000002250A-page 9 USB2504/USB2504A TABLE 4-2: SMBUS OR EEPROM INTERFACE BEHAVIOR CFG_SEL2 CFG_SEL1 CFG_SEL0 SMBus or EEPROM Interface Behavior X 0 0 Configured as an SMBus slave for external download of userdefined descriptors. SMBus slave address is 0101100 X 0 1 Configured as an SMBus slave for external download of userdefined descriptors. SMBus slave address is 0101101 0 1 0 Internal Default Configuration 1 1 0 Internal Default Configuration via strapping options. X 1 1 2-wire (I2C) EEPROMS are supported, TABLE 4-3: MISCELLANEOUS PINS Name Symbol Type Function Crystal Input/External Clock Input XTAL1/ CLKIN ICLKx 24MHz crystal or external clock input. This pin connects to either one terminal of the crystal or to an external 24MHz clock when a crystal is not used. Crystal Output XTAL2 OCLKx 24MHz Crystal This is the other terminal of the crystal, or left unconnected when an external clock source is used to drive XTAL1/CLKIN. It must not be used to drive any external circuitry other than the crystal circuit. Clock Input Enable CLKIN_EN I RESET Input RESET_N IS This active low signal is used by the system to reset the chip. The minimum active low pulse is 1us. Self-Power / Bus-Power Detect SELF_PWR I Detects availability of local self-power source. Low = Self/local power source is NOT available (i.e., Hub gets all power from Upstream USB VBus). High = Self/local power source is available. TEST Pins TEST[1:0] IPD Used for testing the chip. User must treat as a no-connect or connect to ground. Analog Test & Internal 1.8V voltage regulator enable ATEST/ REG_EN AIO This signal is used for testing the analog section of the chip, and to enable or disable the internal 1.8v regulator. Clock In Enable: Low = XTAL1 and XTAL2 pins configured for use with external crystal High = XTAL1 pin configured as CLKIN, and must be driven by an external CMOS clock. This pin must be connected to VDDA33 to enable the internal 1.8V regulator, or to VSS to disable the internal regulator. When the internal regulator is enabled, the 1.8V power pins must be left unconnected, except for the required bypass capacitors.When the PHY is in test mode, the internal regulator is disabled and the ATEST pin functions as a test pin. TABLE 4-4: POWER, GROUND, AND NO CONNECT Name Symbol VDD1P8 VDD18 Type Function +1.8V core power. If the internal regulator is enabled, then VDD18 pin 54 must have a 4.7F (or greater) ±20% (ESR