TUSB2046BIVFR

Product Summary

The TUSB2046BIVFR 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 this TUSB2046BIVFR is implemented with a digital state machine instead of a microcontroller, no firmware programming is required. Upon detecting any overcurrent conditions, the power-management device sets the corresponding OVRCUR terminal of the TUSB2046BIVFR to a logic low. If GANGED is high, all PWRON outputs switch together and if any OVRCUR is activated, all ports transition to the power-off state. If GANGED is low, the PWRON outputs and OVRCUR inputs operate on a per-port basis. The TUSB2046BIVFR provides the flexibility of using a 6-MHz or a 48-MHz clock.

Parametrics

TUSB2046BIVFR absolute maximum ratings: (1)Supply voltage range:-0.5 V to 3.6 V; (2)Input voltage range:-0.5 V to VCC + 0.5 V; (3)Output voltage range:-0.5 V to VCC + 0.5 V; (4)Input clamp current(VI < 0 V or VI > VCC):±20 mA; (5)Output clamp current(VO < 0 V or VO > VCC):±20 mA; (6)Storage temperature range:-65℃ to 150℃; (7)Operating free-air temperature range:-40℃ to 85℃.

Features

TUSB2046BIVFR 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)Power Switching and Overcurrent Reporting Is Provided Ganged or Per Port; (9)Supports Suspend and Resume Operations; (10)Supports Programmable Vendor ID and Product ID With External Serial EEPROM; (11)3-State EEPROM Interface Allows EEPROM Sharing; (12)Push-Pull Outputs for PWRON Eliminate the Need for External Pullup Resistors; (13)Noise Filtering on OVRCUR Provides Immunity to Voltage Spikes; (14)Package Pinout Allows 2-Layer PCB; (15)Low EMI Emission Achieved by a 6-MHz Crystal Input; (16)Migrated From Proven TUSB2040 Hub; (17)Lower Cost Than the TUSB2040 Hub; (18)Enhanced System ESD Performance; (19)Supports 6-MHz Operation Through a Crystal Input or a 48-MHz Input Clock.

Diagrams