器件名称: TUSB2046VF
功能描述: 4-PORT HUB FOR THE UNIVERSAL SERIAL BUS WITH OPTIONAL SERIAL EEPROM INTERFACE
文件大小: 230.97KB 共16页
简 介:TUSB2046 4-PORT HUB FOR THE UNIVERSAL SERIAL BUS WITH OPTIONAL SERIAL EEPROM INTERFACE
SLLS330A – FEBRUARY 1999 – REVISED AUGUST 1999
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Universal Serial Bus (USB) Version 1.1 Compliant 32-Pin TQFP Package With a 0.8 mm Pin Pitch 3.3-V Low Power ASIC Logic Integrated USB Transceivers State Machine Implementation Requires No DP0 Firmware Programming DM0 One Upstream Port and Four Downstream VCC Ports RESET All Downstream Ports Support Full-Speed EECLK and Low-Speed Operations EEDATA/GANGED Two Power Source Modes GND – Self-Powered Mode BUSPWR – Bus-Powered Mode Power Switching and Over-current 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
VF PACKAGE (TOP VIEW)
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SUSPND TSTMODE XTAL1 XTAL2 GND TSTPLL EXTMEM VCC DP4 DM4 OVRCUR4 PWRON4 DP3 DM3 OVRCUR3 PWRON3 PWRON1 OVRCUR1 DM1 DP1 PWRON2 OVRCUR2 DM2 DP2
Copyright 1999, Texas Instruments Incorporated
description
The TUSB2046 is a 3.3 V CMOS hub device that provides one ……
