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TUSB2077A Fiches technique(PDF) 1 Page - Texas Instruments |
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TUSB2077A Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 16 page TUSB2077A 7-PORT HUB FOR THE UNIVERSAL SERIAL BUS WITH OPTIONAL SERIAL EEPROM INTERFACE SLLS414 – MARCH 2000 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Universal Serial Bus (USB) Version 1.1 Compliant D Integrated USB Transceivers D 3.3-V Low Power ASIC Logic D Two Power Source Modes – Self-powered Mode Supporting Seven Downstream Ports – Bus-powered Mode Supporting Four Downstream Ports D All Downstream Ports Support Full-Speed and Low-Speed Operations D Power Switching and Overcurrent Reporting is Provided Per Port or Ganged D Supports Suspend and Resume Operations D Suspend Status Terminal Avaliable for External Logic Power Down D Supports Custom Vendor ID and Product ID With External Serial EEPROM D 3-State EEPROM Interface to Allow EEPROM Sharing D Push-Pull Outputs for PWRON Eliminate the Need for External Pullup Resistors D Noise Filtering on OVRCUR Provides Immunity to Voltage Spikes D Supports 6-MHz Operation Through Crystal Input or 48-MHz Input Clock D New Functional Pins Introduced to Reduce the Board Material Cost – 3 LED Indicator Control Outputs Enable Visualized Monitoring of 6 Different Hub/Port Status (HUBCFG, PORTPWR, PORTDIS) – Output Pin Available to Disable External Pullup Resistor on DP0 for 15 ms After Reset or After Change on BUSPWR and Enable Easy Implementation of On-Board Bus/Self Power Dynamic Switching Circuitry D Available in 48-Pin LQFP† Package PWRON7 DP6 DM6 OVRCUR6 PWRON6 DP5 DM5 OVRCUR5 PWRON5 DP4 DM4 OVRCUR4 36 35 34 33 32 31 30 29 28 27 26 25 1 2 3 4 5 6 7 8 9 10 11 12 SUSPND DP0PUR DP0 DM0 GND RESET EECLK EEDATA/GANGED VCC BUSPWR PWRON1 OVRCUR1 PT PACKAGE (TOP VIEW) NC – No internal connection 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 Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1997, Texas Instruments Incorporated JEDEC descriptor S–PQFP–G for low-profile quad flatpack (LQFP) |
Numéro de pièce similaire - TUSB2077A |
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Description similaire - TUSB2077A |
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