ISP1521BEUM ST-Ericsson Inc, ISP1521BEUM Datasheet

IC USB HUB CONTROLLER HS 80-LQFP

ISP1521BEUM

Manufacturer Part Number
ISP1521BEUM
Description
IC USB HUB CONTROLLER HS 80-LQFP
Manufacturer
ST-Ericsson Inc
Datasheet

Specifications of ISP1521BEUM

Controller Type
USB Hub
Interface
I²C
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
80-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Other names
568-1884-2
ISP1521BE,518
ISP1521BE-T

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1. General description
The ISP1521 is a stand-alone Universal Serial Bus (USB) hub controller IC that complies
with Universal Serial Bus Specification Rev. 2.0. It supports data transfer at high-speed
(480 Mbit/s), full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s).
The upstream facing port can be connected to a Hi-Speed USB host or hub or to an
Original USB host or hub. If the upstream facing port is connected to a Hi-Speed USB host
or hub, then the ISP1521 will operate as a Hi-Speed USB hub. That is, it will support
high-speed, full-speed and low-speed devices connected to its downstream facing ports. If
the upstream facing port is connected to an Original USB host or hub, then the ISP1521
will operate as an Original USB hub. That is, high-speed devices that are connected to its
downstream facing ports will operate in full-speed mode instead.
The ISP1521 is a full hardware USB hub controller. All Original USB devices connected to
the downstream facing ports are handled using a single Transaction Translator (TT), when
operating in a cross-version environment. This allows the whole 480 Mbit/s upstream
bandwidth to be shared by all the Original USB devices on its downstream facing ports.
The ISP1521 has seven downstream facing ports. If not used, ports 3 to 7 can be
disabled. The vendor ID, product ID and string descriptors on the hub are supplied by the
internal ROM; they can also be supplied by an external I
microcontroller.
The ISP1521 is suitable for self-powered hub designs.
An analog overcurrent detection circuitry is built into the ISP1521, which can also accept
digital overcurrent signals from external circuits; for example, Micrel MOSFET switch
MIC2026. The circuitry can be configured to trip on a global or an individual overcurrent
condition.
Each port comes with two status indicator LEDs.
Target applications of the ISP1521 are monitor hubs, docking stations for notebooks,
internal USB hub for motherboards, hub for extending Intel Easy PCs, hub boxes, and so
on.
Hi-Speed USB hub controller
Rev. 07 — 4 February 2010
2
C-bus EEPROM or a
Product data sheet

Related parts for ISP1521BEUM

ISP1521BEUM Summary of contents

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Hi-Speed USB hub controller Rev. 07 — 4 February 2010 1. General description The ISP1521 is a stand-alone Universal Serial Bus (USB) hub controller IC that complies with Universal Serial Bus Specification Rev. 2.0. It supports data transfer at high-speed ...

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... Hub for extending Easy PCs Hub boxes 4. Ordering information Table 1. Ordering information Commercial Package description product code LQFP80; 80 leads; body 12 × 12 × 1.4 (mm) ISP1521BEUM 1. GoodLink is a trademark of ST-Ericsson. CD00222695 Product data sheet 2 C-bus (master or slave) interface to read device descriptor parameters for the upstream facing port ...

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V CC1 17 CC2 ST-ERICSSON PIE 30 CC3 13 CC4 TRANSACTION TRANSLATOR MINI-HOST 12, 14, CONTROLLER 18, ...

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... Fig 2. Pin configuration 6.2 Pin description Table 2. [1] Symbol TEST GND DM0 DP0 RPU GND CD00222695 Product data sheet ISP1521BEUM Pin description [2] Pin Type Description 1 - connect to ground through a 100 kΩ resistor 2 - ground supply 3 AI/O upstream facing port 0 D− connection (analog) ...

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Table 2. [1] Symbol RREF GND DM5 DP5 V CC1 GND V CC4 GND DM6 DP6 V CC2 GND DM1 DP1 TEST_LOW TEST_HIGH OC1_N PSW1_N OC6_N PSW6_N OC5_N PSW5_N GND V CC3 V REF(5V0) OC4_N CD00222695 Product data sheet Pin ...

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Table 2. [1] Symbol PSW4_N OC3_N PSW3_N OC7_N PSW7_N OC2_N PSW2_N RESET_N ADOC XTAL1 XTAL2 GND DM2 DP2 GND DM7 DP7 V CC1 GND V CC4 GND DM3 DP3 V CC2 GND CD00222695 Product data sheet Pin description …continued [2] ...

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Table 2. [1] Symbol DM4 DP4 NOOC GRN4_N AMB4_N GRN3_N AMB3_N GRN7_N AMB7_N GRN2_N AMB2_N V REF(5V0) V CC3 GND GRN1_N CD00222695 Product data sheet Pin description …continued [2] Pin Type Description 58 AI/O downstream facing port 4 D− connection ...

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Table 2. [1] Symbol AMB1_N GRN6_N AMB6_N GRN5_N AMB5_N HUBGL_N SCL SDA [1] Symbol names ending with underscore N (for example, NAME_N) represent active LOW signals. [2] The maximum current the ISP1521 can sink on a pin is 8 mA. ...

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Functional description 7.1 Analog transceivers The integrated transceivers directly interface to USB lines. They can transmit and receive serial data at high-speed (480 Mbit/s), full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s). 7.2 Hub controller core The main components of ...

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Hub repeater A hub repeater manages connectivity on a per packet basis. It implements packet signaling connectivity and resume connectivity. There are two repeaters in the ISP1521: a Hi-Speed USB repeater and an Original USB repeater. The only major ...

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The triggering voltage of the POR circuit is 2.03 V nominal. A POR is automatically generated when Fig 3. Power-on reset timing Stable external clock available at A. Fig 4. External clock with respect ...

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Configuration selections The ISP1521 is configured through I/O pins and, optionally, through an external I in which case the hub can update its configuration descriptors as a master slave. Table 3 shows configuration parameters. Table 3. ...

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Configuration through I/O pins 8.1.1 Number of downstream facing ports To discount a physical downstream facing port, connect pins DP and DM of that downstream facing port to V Table 4. The sum of physical ports configured is reflected ...

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For global overcurrent detection, an increased voltage drop is needed for the overcurrent sense device (in this case, a low-ohmic resistor). This can be realized by using a special power supply of 5.1 V ± shown in ...

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For global overcurrent protection mode, only PSW1_N and OC1_N are active; that is, in this mode, the remaining overcurrent indicator pins are disabled. To inhibit the analog overcurrent detection, OC_N pins must be connected to V Table 6. Overcurrent protection ...

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Table 9. GRN1_N to GRN7_N Ground LED pull-up green LED for at least one port 8.2 Device descriptors and string descriptors settings using I 8.2.1 Background information The I C-bus is suitable for bidirectional communication between ICs ...

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Architecture of configurable hub descriptors The I Fig 7. Configurable hub descriptors Configurable hub descriptors can be masked in the internal ROM memory; see These descriptors can also be supplied from an external EEPROM or a microcontroller. The ISP1521 ...

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ROM or EEPROM map Fig 8. ROM or EEPROM map Remark: A 128-byte EEPROM supports one language ID only, and a 256-byte EEPROM supports two language IDs. 8.2.4 ROM or EEPROM detailed map Table 12. Address (hex) Signature descriptor ...

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Table 12. Address (hex) String descriptor Index 1 (iManufacturer ...

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Table 12. Address (hex ...

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Table 12. Address (hex String descriptor Index 2 (iProduct ...

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Table 12. Address (hex [1] If this string descriptor is not supported, this bLength ...

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Hub controller description Each USB device is composed of several independent logic endpoints. An endpoint acts as a terminus of communication flow between the host and the device. At design time, each endpoint is assigned a unique number (endpoint ...

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Table 14. Bit Name 0 Hub Status Change Port n Status Change 10. Descriptors The ISP1521 hub controller supports the following standard USB descriptors: • Device • Device_qualifier • Other_speed_configuration • Configuration • Interface • Endpoint • ...

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Table 16. Device_qualifier descriptor Offset Field name Value (hex) (bytes) Full-speed 0 bLength 0A 1 bDescriptorType 06 2 bcdUSB bDeviceClass 09 5 bDeviceSubClass 00 6 bDeviceProtocol 00 7 bMaxPacketSize0 40 8 bNumConfigurations 01 Table 17. Other_speed_configuration ...

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Table 19. Interface descriptor Offset Field name Value (hex) (bytes) Full-speed 0 bLength 09 1 bDescriptorType 04 2 bInterfaceNumber 00 3 bAlternateSetting 00 4 bNumEndpoints 01 5 bInterfaceClass 09 6 bInterfaceSubClass 00 7 bInterfaceProtocol 00 8 bInterface 00 Table 20. ...

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Table 22. Bit D0 D3 11. Hub requests The hub must react to a variety of requests initiated by the host. Some requests are standard and are implemented by any USB device whereas others ...

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Table 23. Standard USB requests Request bmRequestType byte 0 (bits Feature Clear Device Feature 0000 0000 (Remote_Wakeup) Clear Endpoint (1) 0000 0010 Feature (Halt/Stall) Set Device Feature 0000 0000 (Remote_Wakeup) Set Endpoint (1) 0000 0010 Feature (Halt/Stall) ...

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Table 24. Hub class requests …continued Request bmRequestType byte 0 (bits StopTT 0010 0011 Test modes Test_J 0010 0011 Test_K 0010 0011 Test_SE0_NAK 0010 0011 Test_Packet 0010 0011 Test_Force_Enable 0010 0011 [1] Returned value in bytes. [2] ...

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Table 26. Bit 11.3.2 Get device status This request returns 2 bytes of data; see Table 27. Bit 11.3.3 Get interface status The request returns 2 bytes of data; see Table ...

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Table 30. Bit 11.3.6 Get port status This request returns 4 bytes of data. The first word contains port status bits (wPortStatus), and the next word contains port status change bits (wPortChange). The contents of wPortStatus ...

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Table 32. Bit Function 2 suspend change 3 overcurrent indicator change 4 reset change reserved 11.4 Various get descriptors bmRequestType — 1000 0000b bmRequest — GET_DESCRIPTOR = 6 Table 33. Get descriptor request Request name wValue Descriptor ...

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Limiting values Table 34. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter V supply voltage (3.3 V) CC(3V3) V input reference voltage 5.0 V REF(5V0) V input voltage buffers I(5V0) ...

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Static characteristics Table 36. Static characteristics: supply pins − ° 3 3 +70 CC amb Symbol Parameter Full-speed I supply current 5 V REF(5V0) I total supply current CC(tot) ...

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Table 38. Static characteristics: I − ° 3 3 +70 CC amb Symbol Parameter Input pin SCL and input/output pin SDA V LOW-level input voltage IL V HIGH-level input voltage ...

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Table 39. Static characteristics: USB interface block (DP0 to DP7 and DM0 to DM7) − ° 3 3 +70 CC amb Symbol Parameter Resistance Z input impedance INP Termination V ...

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Dynamic characteristics Table 40. Dynamic characteristics: system clock timing Symbol Parameter Reset t internal power-on reset pulse W(POR) width t external RESET_N pulse width W(RESET_N) Crystal oscillator f clock frequency clk External clock input δ clock duty cycle [1] ...

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Table 43. Dynamic characteristics: high-speed source electrical characteristics − ° 3 3 +70 CC amb Symbol Parameter Driver characteristics t rise time HSR t fall time HSF Clock timing t ...

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Table 44. Dynamic characteristics: full-speed source electrical characteristics − ° 3 3 +70 CC amb Symbol Parameter Hub timing (downstream ports configured as full-speed) t hub differential data delay (without ...

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T PERIOD +3.3 V crossover point differential data lines the bit duration corresponding with the USB data rate. PERIOD Full-speed timing symbols have a subscript prefix ‘F’, low-speed timing a prefix ‘L’. Fig 11. Source differential ...

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V crossover upstream point differential data lines 0 V hub delay downstream t HDD +3.3 V downstream differential data lines 0 V (A) downstream hub delay SOP distortion: − SOP HDD (next J) HDD(SOP) Full-speed ...

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Table 46. Dynamic characteristics and T within recommended operating range amb Symbol Parameter Clock frequency f SCL clock frequency SCL General timing t LOW period of the SCL clock (SCL)L t HIGH period of the SCL ...

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Application information 16.1 Descriptor configuration selection upstream facing port GoodLink ISP1521 green and . . amber LEDs, port 1 7 USB downstream facing ports 2 The I C-bus cannot be shared between the EEPROM and the external microcontroller; see ...

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Self-powered hub configurations V REF(5V0) TEST_LOW TEST_HIGH ADOC 3 5.0 V Fig 19. Self-powered hub; individual port power switching; individual overcurrent detection CD00222695 Product data sheet +4.85 V (min ± POWER SUPPLY ...

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V REF(5V0) TEST_LOW TEST_HIGH 3 5.0 V Fig 20. Self-powered hub; ganged port power switching; global overcurrent detection CD00222695 Product data sheet +4.95 V (min) 5.1 V ± POWER SUPPLY − (kick-up) 3.3 V LDO ...

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Test information (1) Transmitter: connected to 50 Ω inputs of a high-speed differential oscilloscope. Receiver: connected to 50 Ω outputs of a high-speed differential data generator. Fig 21. High-speed transmitter and receiver test circuit (1) C Fig 22. Full-speed ...

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Package outline LQFP80: plastic low profile quad flat package; 80 leads; body 1 pin 1 index DIMENSIONS (mm are the original dimensions) A ...

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Abbreviations Table 47. Acronym ACPI CRC EEPROM EMI EOP ESD FET HS LSB MSB MOSFET NAK PCB PID PLL SIE SOP TT TTL USB 20. References [1] Universal Serial Bus Specification Rev. 2.0 [2] The I [3] ISP1521 Hi-Speed ...

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Revision history Table 48. Revision history Revision Release date 7 20100204 • Modifications: Updated the filename according to the latest corporate standards. • Table 37 “Static characteristics: digital input and • Figure 9 “Overcurrent trip response • Figure 21 ...

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Tables Table 1. Ordering information . . . . . . . . . . . . . . . . . . . . .2 Table 2. Pin description . . . . . . . . . ...

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Figures Fig 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Fig 2. Pin configuration . . ...

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Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . . ...

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The contents of this document are subject to change without prior notice. ST-Ericsson makes no representation or warranty of any nature whatsoever (neither expressed nor implied) with respect to the matters addressed in this document, including but not limited to ...

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