USB2512BI-AEZG-TR datasheet, PDF

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USB2512BI-AEZG-TR: Descriptionusb interface IC usb 2.0 high-speed 2 port hub ctrl; CategoryThe embedded processor and controller Microcontrollers and processors; File Size805KB，57 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com; Environmental Compliance

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USB2512BI-AEZG-TR Overview

usb interface IC usb 2.0 high-speed 2 port hub ctrl

USB2512BI-AEZG-TR Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	Microchip
package instruction	QFN-36
Reach Compliance Code	compliant
Factory Lead Time	7 weeks
Other features	ALSO REQUIRES 3.3V SUPPLY
Address bus width
Bus compatibility	I2C; SMBUS
maximum clock frequency	24 MHz
External data bus width
JESD-30 code	S-XQCC-N36
JESD-609 code	e3
length	6 mm
Humidity sensitivity level	3
Number of terminals	36
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Package body material	UNSPECIFIED
encapsulated code	HVQCCN
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Maximum seat height	1 mm
Maximum supply voltage	3.6 V
Minimum supply voltage	3 V
Nominal supply voltage	3.3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Matte Tin (Sn) - annealed
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	6 mm
uPs/uCs/peripheral integrated circuit type	BUS CONTROLLER, UNIVERSAL SERIAL BUS

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USB251xB/xBi

USB 2.0 Hi-Speed Hub Controller

General Description

The Microchip USB251xB/xBi hub is a family of low-

power, configurable, MTT (multi transaction translator)

hub controller IC products for embedded USB solu-

tions. The

in the part number indicates the number of

downstream ports available, while the

indicates bat-

tery charging support. The Microchip hub supports low-

speed, full-speed, and hi-speed (if operating as a hi-

speed hub) downstream devices on all of the enabled

downstream ports.

Features

• USB251xB/xBi products are fully footprint com-

patible with USB251x/xi/xA/xAi products as direct

drop-in replacements

— Cost savings include using the same PCB

components and application of USB-IF Compliance

by Similarity

Highlights

• High performance, low-power, small footprint hub

controller IC with 2, 3, or 4 downstream ports

• Fully compliant with the

USB 2.0 Specification

[1]

• Enhanced OEM configuration options available

through either a single serial I

C EEPROM, or

SMBus slave port

•

MultiTRAK

- High-performance multiple transaction trans-

lator which provides one transaction transla-

tor per port

•

PortMap

- Flexible port mapping and disable sequenc-

ing

•

PortSwap

- Programmable USB differential-pair pin loca-

tions ease PCB design by aligning USB sig-

nal lines directly to connectors

•

PHYBoost

- Programmable USB signal drive strength for

recovering signal integrity using 4-level driv-

ing strength resolution

• Full power management with individual or ganged

power control of each downstream port

• Fully integrated USB termination and pull-up/pull-

down resistors

• Supports a single external 3.3 V supply source;

internal regulators provide 1.2 V internal core volt-

age

• Onboard 24 MHz crystal driver or external

24 MHz clock input

• Customizable vendor ID, product ID, and device

• 4 kilovolts of HBM JESD22-A114F ESD protection

(powered and unpowered)

• Supports self- or bus-powered operation

• Supports the USB Battery Charging specification

Rev. 1.1 for Charging Downstream Ports (CDP)

• The USB251xB/xBi offers the following packages:

- 36-pin SQFN (6x6 mm) (Preferred)

- 36-pin QFN (6x6 mm) (Legacy)

• USB251xBi products support the industrial tem-

perature range of -40ºC to +85ºC

• USB251xB products support the extended com-

mercial temperature range of 0ºC to +85ºC

Applications

•

LCD monitors and TVs

Multi-function USB peripherals

PC motherboards

Set-top boxes, DVD players, DVR/PVR

Printers and scanners

PC media drive bay

Portable hub boxes

Mobile PC docking

Embedded systems



2010 - 2015 Microchip Technology Inc.

DS00001692C-page 1

USB251xB/xBi

Table of Contents

1.0 Introduction ..................................................................................................................................................................................... 4

2.0 Block Diagram ................................................................................................................................................................................. 6

3.0 Pin Information ................................................................................................................................................................................ 7

4.0 Battery Charging Support ............................................................................................................................................................. 17

5.0 Initial Interface/Configuration Options ........................................................................................................................................... 19

6.0 DC Parameters ............................................................................................................................................................................. 39

7.0 AC Specifications .......................................................................................................................................................................... 44

8.0 Package Marking Information ....................................................................................................................................................... 46

9.0 Package Information ..................................................................................................................................................................... 48

Appendix A: Acronyms ........................................................................................................................................................................ 50

Appendix B: References ..................................................................................................................................................................... 51

Appendix C: Data Sheet Revision History .......................................................................................................................................... 52

The Microchip Web Site ...................................................................................................................................................................... 54

Customer Change Notification Service ............................................................................................................................................... 54

Customer Support ............................................................................................................................................................................... 54

Product Identification System ............................................................................................................................................................. 55



2010 - 2015 Microchip Technology Inc.

DS00001692C-page 3

USB251xB/xBi

1.0

INTRODUCTION

The Microchip USB251xB/xBi hub family is a group of low-power, configurable, MTT (multi transaction translator) hub

controller ICs. The hub provides downstream ports for embedded USB solutions and is fully compliant with the

USB 2.0

Specification

[1]. Each of the hub controllers can attach to an upstream port as a full-speed or full-/hi-speed hub. The

hub can support low-speed, full-speed, and hi-speed downstream devices when operating as a hi-speed hub.

All required resistors on the USB ports are integrated into the hub. This includes all series termination resistors and all

required pull-down and pull-up resistors on D+ and D- pins. The over-current sense inputs for the downstream facing

ports have internal pull-up resistors.

The USB251xB/xBi hub family includes programmable features, such as:

•

MultiTRAK

Technology:

implements a dedicated Transaction Translator (TT) for each port. Dedicated TTs help

maintain consistent full-speed data throughput regardless of the number of active downstream connections.

•

PortMap:

provides flexible port mapping and disable sequences. The downstream ports of a USB251xB/xBi hub

can be reordered or disabled in any sequence to support multiple platform designs with minimum effort. For any

port that is disabled, the USB251xB/xBi hub controller automatically reorders the remaining ports to match the

USB host controller’s port numbering scheme.

•

PortSwap:

allows direct alignment of USB signals (D+/D-) to connectors to avoid uneven trace length or crossing

of the USB differential signals on the PCB.

•

PHYBoost:

enables 4 programmable levels of USB signal drive strength in downstream port transceivers. PHY-

Boost will also attempt to restore USB signal integrity.

1.1

Configurable Features

The USB251xB/xBi hub controller provides a default configuration that may be sufficient for most applications. Strapping

option pins (see

Section 3.3.1 on page 14)

provide additional features to enhance the default configuration. When the

hub is initialized in the default configuration, the following features may be configured using the strapping options:

•

Downstream non-removable ports, where the hub will automatically report as a compound device

Downstream disabled ports

Enabling of battery charging option on individual ports

The USB251xB/xBi hub controllers can alternatively be configured by an external I

C EEPROM or a microcontrol-

ler as an SMBus slave device. When the hub is configured by an I

C EEPROM or over SMBus, the following con-

figurable features are provided:

Support for compound devices on a port-by-port basis

Selectable over-current sensing and port power control on an individual or ganged basis to match the circuit board

component selection

Customizable vendor ID, product ID, and device ID

Configurable USB signal drive strength

Configurable USB differential pair pin location

Configurable delay time for filtering the over-current sense inputs

Configurable downstream port power-on time reported to the host

Indication of the maximum current that the hub consumes from the USB upstream port

Indication of the maximum current required for the hub controller

Custom string descriptors (up to 31 characters):

- Product

- Manufacturer

- Serial number

Battery charging USB251xB/xBi products are fully footprint compatible with USB251x/xi/xA/xAi products:

- Pin-compatible

- Direct drop-in replacement

- Use the same PCB components

- USB-IF Compliance by Similarity for ease of use and a complete cost reduction solution

- Product IDs, device IDs, and other register defaults may differ. See

Section 5.1 on page 19

for details.

•

DS00001692C-page 4



2010 - 2015 Microchip Technology Inc.

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Description	usb interface IC usb 2.0 high-speed 2 port hub ctrl	IC HUB CTLR 2PORT USB 2.0 HS 36S	IC HUB CTLR 2PORT USB 2.0 HS 36S			USB Hub Controller - USB2.0	Function: Hub controller Protocol category: USB Power supply voltage: 3V ~ 3.6V Interface type: USB Standard: - I2C interface, USB 2.0 high-speed hub control IC
Is it lead-free?	Lead free	-	-	Lead free	Lead free	Lead free	-
Is it Rohs certified?	conform to	-	-	conform to	conform to	conform to	conform to
Maker	Microchip	-	-	Microchip	Microchip	Microchip	-
package instruction	QFN-36	-	-	HVQCCN, LCC36,.24SQ,20	SQFN-36	HVQCCN,	HVQCCN,
Reach Compliance Code	compliant	-	-	compliant	compliant	compliant	compliant
Factory Lead Time	7 weeks	-	-	7 weeks	7 weeks	7 weeks	7 weeks
Bus compatibility	I2C; SMBUS	-	-	I2C; SMBUS	I2C; SMBUS	I2C; SMBUS	I2C; SMBUS
JESD-30 code	S-XQCC-N36	-	-	S-XQCC-N36	S-XQCC-N36	S-XQCC-N36	S-XQCC-N36
JESD-609 code	e3	-	-	e3	e3	e3	e3
length	6 mm	-	-	6 mm	6 mm	6 mm	6 mm
Number of terminals	36	-	-	36	36	36	36
Maximum operating temperature	85 °C	-	-	85 °C	85 °C	85 °C	85 °C
Package body material	UNSPECIFIED	-	-	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED
encapsulated code	HVQCCN	-	-	HVQCCN	HVQCCN	HVQCCN	HVQCCN
Package shape	SQUARE	-	-	SQUARE	SQUARE	SQUARE	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	-	-	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Maximum seat height	1 mm	-	-	1 mm	1 mm	1 mm	1 mm
Maximum supply voltage	3.6 V	-	-	3.6 V	3.6 V	3.6 V	3.6 V
Minimum supply voltage	3 V	-	-	3 V	3 V	3 V	3 V
Nominal supply voltage	3.3 V	-	-	3.3 V	3.3 V	3.3 V	3.3 V
surface mount	YES	-	-	YES	YES	YES	YES
technology	CMOS	-	-	CMOS	CMOS	CMOS	CMOS
Temperature level	INDUSTRIAL	-	-	COMMERCIAL EXTENDED	INDUSTRIAL	INDUSTRIAL	OTHER
Terminal surface	Matte Tin (Sn) - annealed	-	-	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed	Matte Tin (Sn) - annealed
Terminal form	NO LEAD	-	-	NO LEAD	NO LEAD	NO LEAD	NO LEAD
Terminal pitch	0.5 mm	-	-	0.5 mm	0.5 mm	0.5 mm	0.5 mm
Terminal location	QUAD	-	-	QUAD	QUAD	QUAD	QUAD
width	6 mm	-	-	6 mm	6 mm	6 mm	6 mm
uPs/uCs/peripheral integrated circuit type	BUS CONTROLLER, UNIVERSAL SERIAL BUS	-	-	BUS CONTROLLER, UNIVERSAL SERIAL BUS	BUS CONTROLLER, UNIVERSAL SERIAL BUS	BUS CONTROLLER, UNIVERSAL SERIAL BUS	BUS CONTROLLER, UNIVERSAL SERIAL BUS

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