器件名称: TUSB2046BVFR
功能描述: 4-PORT HUB FOR THE UNIVERSAL SERIAL BUS WITH OPTIONAL SERIAL EEPROM INTERFACE
文件大小: 323.94KB 共21页
简 介:TUSB2046B, TUSB2046BI 4PORT HUB FOR THE UNIVERSAL SERIAL BUS WITH OPTIONAL SERIAL EEPROM INTERFACE
SLLS413B FEBRUARY 2000 REVISED DECEMBER 2004
D Universal Serial Bus (USB) Version 1.1 D D D D D D D D D D D D D D D D D D D
Compliant 32-Terminal LQFP Package With a 0.8-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 DP0 Ports DM0 All Downstream Ports Support Full-Speed VCC and Low-Speed Operations RESET Two Power Source Modes EECLK Self-Powered Mode EEDATA/GANGED Bus-Powered Mode GND BUSPWR 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 Supports 6-MHz Operation Through a Crystal Input or a 48-MHz Input Clock
VF PACKAGE (TOP VIEW)
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SUSPND TSTMODE XTAL1 XTAL2 GND TSTPLL/48MCLK EXTMEM VCC DP4 DM4 OVRCUR4 PWRON4 DP3 DM3 OVRCUR3 PWRON3 PWRON1 OVRCUR1 DM1 DP1 PWRON2 O……