CY7C65100 CY7C65100 Four-port Universal Serial Bus Fixed-function Hub Controller Cypress Semiconductor Corporation Document #: 38-08021 Rev. ** • 3901 North First Street • San Jose • CA 95134 • 408-943-2600 Revised June 6, 2002 CY7C65100 TABLE OF CONTENTS 1.0 FEATURES ...................................................................................................................................... 3 2.0 FUNCTIONAL OVERVIEW .............................................................................................................. 3 3.0 PRODUCT SUMMARY .................................................................................................................... 4 3.1 Logic Block Diagram ...................................................................................................................... 4 3.2 Pin Configuration ............................................................................................................................ 4 3.3 Pin Assignments ............................................................................................................................. 5 4.0 CLOCKING ....................................................................................................................................... 5 5.0 USB OVERVIEW .............................................................................................................................. 5 5.1 USB SIE ........................................................................................................................................... 5 5.2 Hub Design ...................................................................................................................................... 6 5.3 Vendor ID and Product ID .............................................................................................................. 6 6.0 APPLICATION DIAGRAMS ............................................................................................................ 7 6.1 USB Standalone Hub Schematics ................................................................................................. 8 7.0 ABSOLUTE MAXIMUM RATINGS .................................................................................................. 9 8.0 ELECTRICAL CHARACTERISTICS ................................................................................................ 9 9.0 SWITCHING CHARACTERISTICS ............................................................................................... 10 10.0 ORDERING INFORMATION ........................................................................................................ 10 11.0 PACKAGE DIAGRAM .................................................................................................................. 11 LIST OF FIGURES Figure 4-1. Clock Oscillator On-chip Circuit ....................................................................................... 5 Figure 6-1. USB Standalone Hub Application Diagram...................................................................... 7 Figure 9-1. Clock Timing ..................................................................................................................... 10 Figure 9-2. USB Data Signal Timing................................................................................................... 10 LIST OF TABLES Table 3-1. Pin Assignments ................................................................................................................ 5 Document #: 38-08021 Rev. ** Page 2 of 12 CY7C65100 1.0 Features • Fixed-function four-port USB hub devices with integrated hub repeater, hub controller, Serial Interface Engine (SIE), and USB transceivers • USB Specification Compliance — Conforms to USB Specification, Rev. 1.1 • • • • • • • • — Complies with the USB HUB Device Class Supports self-powered and bus-powered applications Individual downstream port power switching Individual downstream port overcurrent detection Integrated USB transceivers reduce EMI Internal 48-MHz phase-locked loop (PLL) reduces design cost by requiring only an external 6-MHz crystal Operating voltage from 4.0V–5.5V DC Operating temperature from 0°–70° Celsius Available in a space-saving 28-lead SOIC package 2.0 Functional Overview The CY7C65100 series offers high-performance fixed-function Universal Serial Bus (USB) hub devices that comply with USB Specification, Rev. 1.1. Up to four downstream USB ports are available to expand the USB attachment points available in your PC system. These self-contained devices require no firmware development for your design, thereby reducing the design risk associated with some microcontroller solutions. These Application Specific Standard Products (ASSP) can improve time-tomarket in a number of USB designs, including standalone hubs, motherboard hubs, and monitor hubs. The CY7C65100 series supports self-powered or bus-powered applications. Power management for all downstream ports supports power-switching and overcurrent detection with individual port control. The four downstream ports support both full-speed (12-Mbps signaling rate) and low-speed (1.5-Mbps signaling rate) devices. The CY7C65100 sereis has a reduced frequency (6MHz) crystal oscillator for lower system cost as well as improved EMI performance. The four-port CY7C65100 series is available in a cost-effective and space-saving 28-lead SOIC package. Document #: 38-08021 Rev. ** Page 3 of 12 CY7C65100 3.0 Product Summary 3.1 Logic Block Diagram D+[0] D-[0] USB 1.1 Xcvr USB Serial Interface Engine PLL USB Hub Controller Upstream USB Port USB Hub Repeater Downstream Port 1 USB 1.1 Xcvr Port Power Control Downstream Port 2 USB 1.1 Xcvr Downstream Port 3 Port Power Control USB 1.1 Xcvr Port Power Control Downstream Port 4 USB 1.1 Xcvr Port Power Control D+[1] D-[1] PWR[1] OC[1] D+[2] D-[2] PWR[2] OC[2] D+[3] D-[3] PWR[3] OC[3] D+[4] D-[4] PWR[4] OC[4] 3.2 Pin Configuration CY7C65100 28-pin SOIC Document #: 38-08021 Rev. ** XTALOUT 1 28 VCC XTALIN 2 27 PSTAT[3/4] VREF 3 26 PSTAT[1/2] GND 4 25 PWR_SEL D+[0] 5 24 D–[3] D–[0] 6 23 D+[3] D+[1] 7 22 D–[4] D–[1] 8 21 D+[4] D+[2] 9 20 GND D–[2] 10 19 GND OC[4] 11 18 PWR[1] OC[2] 12 17 PWR[3] PWR[4] 13 16 OC[1] PWR[2] 14 15 OC[3] Page 4 of 12 CY7C65100 3.3 Pin Assignments Table 3-1. Pin Assignments Name I/O Pin D+[0], D–[0] I/O 5,6 D+[1], D–[1] I/O 7,8 Downstream port 1, USB differential data D+[2], D–[2] I/O 9,10 Downstream port 2, USB differential data D+[3], D–[3] I/O 23,24 Downstream port 3, USB differential data D+[4], D–[4] Description Upstream port, USB differential data I/O 21,22 OUT 18,14,17,13 Downstream port power enable output OC[1]–OC[4] IN 16,12,15,11 Downstream port power over-current detection signals XTALIN IN 2 PWR[1]– PWR[4] Downstream port 4, USB differential data 6-MHz crystal or external clock input XTALOUT OUT 1 6-MHz crystal out VCC PWR 28 Voltage supply GND GND 4,19,20 VREF IN 3 Input for external 3.3V supply voltage for the upstream and downstream differential data output buffers and the D+ pull-up PWR_SEL IN 25 Bus or self-power function select input OUT 26,27 PSTAT[1/2], PSTAT[3/4] 4.0 Ground Downstream port LED status enable Clocking XTALOUT (pin 1) XTALIN (pin 2) to internal PLL 30 pF 30 pF Figure 4-1. Clock Oscillator On-chip Circuit XTALIN and XTALOUT are the clock pins to the CY7C65100 series. The user can connect either an external oscillator or a crystal to these pins. A 6-MHz fundamental crystal can be connected to these pins to provide a reference frequency for the internal PLL. When using an external crystal, keep PCB traces between the chip leads and crystal as short as possible (less than 2 cm). A ceramic resonator is not an adequate clock source to meet the timing specifications of a high-speed USB function and therefore cannot be used with these parts. An external 6-MHz clock can be applied to the XTALIN pin if the XTALOUT pin is left open. Please note that grounding the XTALOUT pin when driving XTALIN with an oscillator will not work as the internal clock is effectively shorted to ground. 5.0 USB Overview The USB hardware includes a USB Hub repeater with one upstream port and up to four downstream ports. An external series resistor of Rext = 20Ω (± 5%) must be placed in series with all upstream and downstream USB I/O in order to meet the USB driver impedance requirements as defined by the USB specification (see Figure 6-1). 5.1 USB SIE The SIE allows the CY7C65100 series to communicate with the USB host through the USB repeater portion of the hub. The SIE handles the following USB bus activity independently of the hub microcontroller: • Bit stuffing/unstuffing • Checksum generation/checking Document #: 38-08021 Rev. ** Page 5 of 12 CY7C65100 • ACK/NAK/STALL • TOKEN type identification • Address checking. The following protocol handling is done at a higher level by the Hub Control Block: • Coordinate enumeration by responding to SETUP packets • Fill and empty the FIFOs • Suspend/Resume coordination • Verify and select DATA toggle values • Port power control and over-current detection. 5.2 Hub Design The power switching and over-current detection of downstream ports is managed by control pins connected to an external power switch device (see Figure 6-1). The active-LOW PWR[n] output pins of the CY7C65100 series are connected to the respective external power switch’s port power enable signals. (Note that each port power output pin of the external power switch must be bypassed with an electrolytic or tantalum capacitor as required by the USB specification. These capacitors supply the inrush currents which occur during downstream device hot-attach events.) The active-LOW OC[n] pins of the CY7C65100 series are connected to the respective external power switch’s port over-current indication (output) signals. Upon detecting an over-current condition, the hub device reports the over-current condition to the host and disables (sets to logic HIGH) the respective PWR[n] signal connected to the external power device. 5.3 Vendor ID and Product ID The CY7C65100 Series will enumerate with the default Vendor ID and Product ID as follows. Bus-powered Self-powered Vendor ID 0x04b4 0x04b4 Product ID 0x5204 0x5203 Pin 25 (PWR_SEL) is a strapping option that selects the device’s power configuration report (PWR_SEL = GND for self-powered, PWR_SEL = Vcc for bus-powered). For high-volume business, Cypress has the capability to factory-program a Custom Vendor ID and Product ID. Please contact your local Cypress sales office for more information. Document #: 38-08021 Rev. ** Page 6 of 12 CY7C65100 6.0 Application Diagrams +3.3V +5.0V 1.5K VCC (TO HOST) D+ D– D+[0] D–[0] 20 20 +5.0V +3.3V VREF XTALIN XTALOUT IN +5.0V 100K PWR1 OUTA PWR1 PWR[1] OC[1] ENA FLGA D+[1] D–[1] 20 20 D+ D- 15K 15K Port 1 +5.0V 100K PWR2 PWR2 OUTB PWR[2] OC[2] ENB FLGB D+[2] D–[2] 20 20 +5.0V 15K 100K PWR3 PWR[3] OC[3] ENC FLGC Port 2 CY7C65100 Series PWR3 OUTC VCC D+ D- 15K Power Switch VCC D+[3] D–[3] 20 20 VCC D+ D- 15K 15K Port 3 +5.0V 100K PWR4 PWR4 OUTD PWR[4] OC[4] END FLGD D+[4] D–[4] 20 20 D+ D- 15K PWR1 1K PWR2 1K PWR3 1K PWR4 1K VCC 15K Port 4 PSTAT[1/2] PWR_SEL* PSTAT[3/4] * PWR_SEL = VCC for Bus-powered Applications PWR_SEL = GND for Self-powered Applications Figure 6-1. USB Standalone Hub Application Diagram Document #: 38-08021 Rev. ** Page 7 of 12 CY7C65100 6.1 USB Standalone Hub Schematics Document #: 38-08021 Rev. ** Page 8 of 12 CY7C65100 7.0 Absolute Maximum Ratings Storage Temperature ................................. –65°C to +150°C Ambient Temperature with Power Applied ...... –0°C to +70°C Supply voltage on VCC relative to VSS ........... –0.5V to +7.0V DC Input Voltage................................. –0.5V to +VCC + 0.5V Power Dissipation .....................................................500 mW Static Discharge Voltage ..........................................> 2000V Latch-up Current ................................................... > 200 mA Max Output Sink Current into PWR[n] Pins (Vout = 2.0V) ............................................................... 60 mA 8.0 Electrical Characteristics FOSC = 6 MHz; Operating Temperature = 0° to 70°C, VCC = 4.0V to 5.5V Parameter Description Conditions Min. Max. Unit 3.15 3.45 V 50 mA 10 mA General Vref Reference Voltage 3.3V ± 5% ICC VCC Operating Current IREF Vref Operating Current ISB1 Standby Current IIL Input Leakage Current any pin Vdi Differential Input Sensitivity |(D+)–(D–)| Vcm Differential Input Common Mode Range 0.8 2.5 V Vse Single Ended Receiver Threshold 0.8 2.0 V Cin Transceiver Capacitance 20 pF Ilo High-Z State Data Line Leakage –10 10 µA No USB Traffic 50 µA 1 µA USB Interface 0V < Vin < 3.3V RD+ USB Power Setting Pull-up Resistor Rext1 External USB Pull-down Resistor Downstream data lines Rext2 External USB Series Resistor 0.2 V 1.425 1.575 KW 14.25 15.75 KW In series with each USB pin 19 21 W Linear ramp: VCC=0 to Operating Voltage[1] 0 100 ms 2.8 3.6 V Power-On Reset tvccs VCC Ramp Rate USB Upstream/Downstream Port Voh Static Output HIGH RL of 15 kΩ± 5% to Gnd Vol Static Output LOW RL of 1.5 kΩ± 5% to 3.6V Vcrs Crossover Voltage Zo USB Driver Output Impedance Including Rext 0.3 V 1.3 2.0 V 28 44 W OC[n] Pins VIL Input LOW Threshold Voltage VIH Input HIGH Threshold Voltage 0.8 2.0 V V PWREN[n] Pins IPWR[n] PWR[n] Sink Current (typical 7 mA) Vout = 2.0V DC 3.5 10.6 mA Note: 1. Power-on Reset will occur whenever the voltage on VCC is below approximately 2.5V. Document #: 38-08021 Rev. ** Page 9 of 12 CY7C65100 Parameter Description Min. Max. Unit Clock Source fOSC Clock Rate 5.985 6.015 MHz tcyc Clock Period 166.25 167.08 nsec tCH Clock HIGH Time 0.45 tCYC ns tCL Clock LOW Time 0.45 tCYC ns USB Full-speed Signaling tr Transition Rise Time 4 tf Transition Fall Time trfm Rise/Fall Time Matching; (tr/tf) tdrate Full-speed Data Rate 20 ns 4 20 ns 90 110 % 11.97 12.03 Mb/s USB Low-speed Signaling tr Transition Rise Time 75 300 ns tf Transition Fall Time 75 300 ns trfm Rise/Fall Time Matching; (tr/tf) tdrate Low-speed Data Rate 9.0 80 120 % 1.4775 1.5225 Mb/s Switching Characteristics tCYC tCH CLOCK tCL Figure 9-1. Clock Timing tR D+ tF 90% 90% 10% 10% D− Figure 9-2. USB Data Signal Timing 10.0 Ordering Information Ordering Code Package Name Description Operating Range S21 28-pin SOIC Commercial CY7C65100-SC Document #: 38-08021 Rev. ** Page 10 of 12 CY7C65100 11.0 Package Diagram 28-lead (300-mil) Molded SOIC S21 51-85026-A All product and company names mentioned in this document are the trademarks of their respective holders. Document #: 38-08021 Rev. ** Page 11 of 12 © Cypress Semiconductor Corporation, 2002. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress Semiconductor product. Nor does it convey or imply any license under patent or other rights. Cypress Semiconductor does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. CY7C65100 Document Title: CY7C65100 Four-port Universal Serial Bus Fixed-function Hub Controller Document Number: 38-08021 REV. ECN NO. Issue Date Orig. of Change ** 113849 06/25/02 BON Document #: 38-08021 Rev. ** Description of Change New Data Sheet Page 12 of 12