TUSB2046BVFR

Product Summary

The TUSB2046BVFR is a 3.3V CMOS hub device that provides one upstream port and four downstream ports in compliance with the 1.1 Universal Serial Bus (USB) specification. Because TUSB2046BVFR is implemented with a digital state machine instead of a microcontroller, no firmware programming is required. Fully-compliant USB transceivers are integrated into the ASIC for all upstream and downstream ports.

Parametrics

TUSB2046BVFR absolute maximum ratings: (1)Supply voltage range, VCC:0.5 V to 3.6 V; (2)Input voltage range, VI:0.5 V to VCC + 0.5 V; (3)Output voltage range, VO :0.5 V to VCC + 0.5 V; (4)Input clamp current, IIK, (VI < 0 V or VI > VCC):±20 mA; (5)Output clamp current, IOK, (VO < 0 V or VO > VCC):±20 mA; (6)Storage temperature range, Tstg :65°C to 150°C; (7)Operating free-air temperature range, TA:0°C to 70°C.

Features

TUSB2046BVFR features: (1)Universal Serial Bus (USB) Version 1.1 Compliant; (2)32-Terminal LQFP Package With a 0.8-mm Terminal Pitch; (3)3.3-V Low Power ASIC Logic; (4)Integrated USB Transceivers; (5)State Machine Implementation Requires No Firmware Programming; (6)One Upstream Port and Four Downstream Ports; (7)All Downstream Ports Support Full-Speed and Low-Speed Operations; (8)Two Power Source Modes:Self-Powered Mode;Bus-Powered Mode; (9)Power Switching and Overcurrent Reporting Is Provided Ganged or Per Port; (10)Supports Suspend and Resume Operations; (11)Supports Programmable Vendor ID and Product ID With External Serial EEPROM; (12)3-State EEPROM Interface Allows EEPROM Sharing; (13)Push-Pull Outputs for PWRON Eliminate the Need for External Pullup Resistors; (14)Noise Filtering on OVRCUR Provides Immunity to Voltage Spikes;(15)Package Pinout Allows 2-Layer PCB; (16)Low EMI Emission Achieved by a 6-MHz Crystal Input; (17)Migrated From Proven TUSB2040 Hub; (18)Lower Cost Than the TUSB2040 Hub; (19)Enhanced System ESD Performance; (20)Supports 6-MHz Operation Through a Crystal Input or a 48-MHz Input Clock.

Diagrams