USB2517/USB2517I
USB 2.0 Hi-Speed 7-Port Hub Controller
General Description
OEM Selectable Features
The 7-Port Hub is a low power, OEM configurable, MTT
(multi transaction translator) hub controller IC with 7
downstream ports for embedded USB solutions. The 7port hub is fully compliant with the USB 2.0 Specification and will attach to an upstream port as a Full-Speed
Hub or as a Full-/Hi-Speed Hub. The 7-Port 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.
• Customizable Vendor ID, Product ID, and Device
ID
• Select whether the hub is part of a compound
device (When any downstream port is permanently hardwired to a USB peripheral device, the
hub is part of a compound device.)
• Flexible port mapping and disable sequence.
Ports can be disabled/reordered in any order to
support multiple product SKUs. Hub will automatically reorder the remaining ports to match the
Host controller's numbering scheme
• Programmable USB differential-pair pin location
- Eases PCB layout by aligning USB signal
lines directly to connectors
• Programmable USB signal drive strength.
Recover USB signal integrity due to compromised
system environments using 4-level driving
strength resolution
• Select the presence of a permanently hardwired
USB peripheral device on a port by port basis
• Configure the delay time for filtering the over-current sense inputs
• Configure the delay time for turning on downstream port power
• Indicate the maximum current that the 347-port
hub consumes from the USB upstream port
• Indicate the maximum current required for the hub
controller
• Support Custom String Descriptor up to 31 characters in length for:
- Product String
- Manufacturer String
- Serial Number String
• Pin Selectable Options for Default Configuration
- Select Downstream Ports as Non-Removable
Ports
- Select Downstream Ports as Disabled Ports
- Select Downstream Port Power Control and
Over-Current Detection on a Ganged or Individual Basis
- Select USB Signal Drive Strength
- Select USB Differential Pair Pin location
General Features
• Hub Controller IC with 7 downstream ports
• High-performance multiple transaction translator
MultiTRAK™ Technology provides one transaction translator per port
• Enhanced OEM configuration options available
through either a single serial I2C EEPROM, or
SMBus Slave Port
• 64-Pin (9x9 mm) QFN, RoHS compliant package
• Supports commercial (0ºC to +70ºC) and industrial (-40ºC to +85ºC) temperature ranges
Hardware Features
• Low power operation
• Full Power Management with individual or ganged
power control of each downstream port
• On-chip Power On Reset (POR)
• Internal 1.8V Voltage Regulator
• Fully integrated USB termination and Pull-up/Pulldown resistors
• On Board 24MHz Crystal Driver, Resonator, or
External 24/MHz clock input
• USB host/device speed indicator. Per-port 3-color
LED drivers indicate the speed of USB host and
device connection - hi-speed (480 Mbps), fullspeed (12 Mbps), low-speed (1.5 Mbps)
• Enhanced EMI rejection and ESD protection performance
2013-2018 Microchip Technology Inc.
DS00001598C-page 1
USB2517/USB2517I
Applications
•
•
•
•
•
•
•
•
•
LCD monitors and TVs
Multi-function USB peripherals
PC mother boards
Set-top boxes, DVD players, DVR/PVR
Printers and scanners
PC media drive bay
Portable hub boxes
Mobile PC docking
Embedded systems
DS00001598C-page 2
2013-2018 Microchip Technology Inc.
USB2517/USB2517I
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and
enhanced as new volumes and updates are introduced.
If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via
E-mail at docerrors@microchip.com. We welcome your feedback.
Most Current Data Sheet
To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at:
http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.
The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).
Errata
An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the
revision of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
• Microchip’s Worldwide Web site; http://www.microchip.com
• Your local Microchip sales office (see last page)
When contacting a sales office, please specify which device, revision of silicon and data sheet (include -literature number) you are
using.
Customer Notification System
Register on our web site at www.microchip.com to receive the most current information on all of our products.
2013-2018 Microchip Technology Inc.
DS00001598C-page 3
USB2517/USB2517I
Table of Contents
1.0 Acronyms & Definitions ................................................................................................................................................................... 5
2.0 Block Diagram ................................................................................................................................................................................. 6
3.0 Pin Configuration ............................................................................................................................................................................. 7
4.0 Pin Table ......................................................................................................................................................................................... 8
5.0 Pin Descriptions and Buffer Type Descriptions ............................................................................................................................. 10
6.0 LED Usage Description ................................................................................................................................................................. 17
7.0 Configuration Options ................................................................................................................................................................... 19
8.0 DC Parameters ............................................................................................................................................................................. 47
9.0 AC Specifications .......................................................................................................................................................................... 52
10.0 Package outline ........................................................................................................................................................................... 53
Appendix A: Data Sheet Revision History ........................................................................................................................................... 55
The Microchip Web Site ...................................................................................................................................................................... 56
Customer Change Notification Service ............................................................................................................................................... 56
Customer Support ............................................................................................................................................................................... 56
Product Identification System .............................................................................................................................................................. 57
DS00001598C-page 4
2013-2018 Microchip Technology Inc.
USB2517/USB2517I
1.0
ACRONYMS & DEFINITIONS
EEPROMM: Electrically Erasable Programmable Read-Only Memory (a type of non-volatile memory)
EMI: Electromagnetic Interference
ESD: Electrostatic Discharge
I2C: Inter-Integrated Circuit
LCD: Liquid Crystal Display
LED: Light Emitting Diode
OCS: Over-current sense
PCB: Printed Circuit Board
PHY: Physical Layer
PLL: Phase-Locked Loop
PVR: Personal Video Recorder (also known as a Digital Video Recorder)
QFN: Quad Flat No Leads
RoHS: Restriction of Hazardous Substances Directive
SCK: Serial Clock
SD: Secure Digital
SIE: Serial Interface Engine
SMBus: System Management Bus
TT: Transaction Translator
2013-2018 Microchip Technology Inc.
DS00001598C-page 5
USB2517/USB2517I
2.0
BLOCK DIAGRAM
FIGURE 2-1:
USB2517/USB2517I BLOCK DIAGRAM
To Upstream
VBUS
Upstream USB
Data
To EEPROM or
SMBus Master
24 MHz Crystal
3.3V
SDA SCK
1.8V
PLL
Bus-Power
Detect/VBUS
Pulse
Upstream
PHY
1.8V Reg
SIE
Repeater
TT
#1
Serial
Interface
TT
#2
TT
#3
TT
#4
Controller
TT
#5
TT
#6
TT
#7
Port
Controller
Routing & Port Re-Ordering Logic
PHY#1
Port #1
Port #2
Port #7
OC
Sense
Switch
Driver
LED
Drivers
OC
Sense
Switch
Driver
LED
Drivers
OC
Sense
Switch
Driver
LED
Drivers
USB Data OC Sense
Downstream Switch/LED
Drivers
DS00001598C-page 6
PHY#2
USB Data OC Sense
Downstream Switch/LED
Drivers
PHY#7
USB Data OC Sense
Downstream Switch/LED
Drivers
2013-2018 Microchip Technology Inc.
USB2517/USB2517I
PIN CONFIGURATION
LED_B2_N/BOOST1
LED_A3_N/PRT_SWP3
VDD33
SUSP_IND/LOCAL_PWR/NON_REM0
VBUS_DET
RESET_N
HS_IND/CFG_SEL1
SCL/SMBCLK/CFG_SEL0
SDA/SMBDATA/NON_REM1
PRTPWR6
OCS6_N
OCS7_N
PRTPWR7
OCS5_N
LED_B3_N/GANG_EN
LED_A4_N/PRT_SWP4
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
USB2517I 64-PIN QFN DIAGRAM
48
FIGURE 3-1:
LED_A2_N/PRT_SWP2
49
32
LED_B4_N
LED_B1_N/BOOST0
50
31
LED_A5_N/PRT_SWP5
LED_A1_N/PRT_SWP1
51
30
PRTPWR5
VDDA33
52
29
PRTPWR1
USBDN6_DM/PRT_DIS_M6
53
28
OCS1_N
USBDN6_DP/PRT_DIS_P6
54
27
OCS2_N
USBDN7_DM/PRT_DIS_M7
55
26
PRTPWR2
USBDN7_DP/PRT_DIS_P7
56
25
VDD18
VDDA33
57
24
VDD33CR
USBUP_DM
58
23
PRTPWR3
USBUP_DP
59
22
OCS3_N
XTAL2
60
21
OCS4_N
XTAL1/CLKIN
61
20
PRTPWR4
VDD18PLL
62
19
TEST
RBIAS
63
18
LED_B5_N
VDD33PLL
64
17
LED_A6_N/PRT_SWP6
USB2517/USB2517I
(Top View QFN-64)
14
15
16
LED_B7_N
LED_A7_N/PRT_SWP7
LED_B6_N
9
USBDN4_DP/PRT_DIS_P4
13
8
USBDN4_DM/PRT_DIS_M4
CFG_SEL2
7
USBDN3_DP/PRT_DIS_P3
12
6
USBDN3_DM/PRT_DIS_M3
USBDN5_DP/PRT_DIS_P5
5
VDDA33
11
4
USBDN2_DP/PRT_DIS_P2
USBDN5_DM/PRT_DIS_M5
3
USBDN2_DM/PRT_DIS_M2
10
2
VDDA33
1
USBDN1_DP/PRT_DIS_P1
Thermal Slug
(must be connected to VSS)
USBDN1_DM/PRT_DIS_M1
3.0
Indicates pins on the bottom of the device.
2013-2018 Microchip Technology Inc.
DS00001598C-page 7
USB2517/USB2517I
4.0
PIN TABLE
4.1
64-Pin List
TABLE 4-1:
USB2517I 64-PIN TABLE
Upstream USB 2.0 Interfaces (3 pins)
USBUP_DP
USBUP_DM
VBUS_DET
Downstream 7-Port USB 2.0 Interfaces (43 Pins)
USBDN1_DP/
PRT_DIS_P1
USBDN2_DP/
PRT_DIS_P2
USBDN3_DP/
PRT_DIS_P3
USBDN4_DP/
PRT_DIS_P4
USBDN5_DP/
PRT_DIS_P5
USBDN6_DP/
PRT_DIS_P6
USBDN7_DP/
PRT_DIS_P7
USBDN1_DM/
PRT_DIS_M1
USBDN2_DM/
PRT_DIS_M2
USBDN3_DM/
PRT_DIS_M3
USBDN4_DM/
PRT_DIS_M4
USBDN5_DM/
PRT_DIS_M5
USBDN6_DM/
PRT_DIS_M6
USBDN7_DM/
PRT_DIS_M7
LED_A1_N/
PRT_SWP1
LED_A2_N/
PRT_SWP2
LED_A3_N/
PRT_SWP3
LED_A4_N/
PRT_SWP4
LED_A5_N/
PRT_SWP5
LED_A6_N/
PRT_SWP6
LED_A7_N/
PRT_SWP7
LED_B1_N/
BOOST0
LED_B2_N/
BOOST1
LED_B3_N/
GANG_EN
LED_B4_N
LED_B5_N
LED_B6_N
LED_B7_N
PRTPWR1
PRTPWR2
PRTPWR3
PRTPWR4
PRTPWR5
PRTPWR6
PRTPWR7
OCS1_N
OCS2_N
OCS3_N
OCS4_N
OCS5_N
OCS6_N
OCS7_N
RBIAS
Serial Port Interface (4 Pins)
SDA/
SMBDATA/
NON_REM1
SCL/
SMBCLK/
CFG_SEL0
HS_IND/
CFG_SEL1
CFG_SEL2
SUSP_IND/
LOCAL_PWR/
NON_REM0
RESET_N
MISC (5 Pins)
XTAL1/CLKIN
XTAL2
TEST
DS00001598C-page 8
2013-2018 Microchip Technology Inc.
USB2517/USB2517I
TABLE 4-1:
USB2517I 64-PIN TABLE (CONTINUED)
Analog Power (6 Pins)
VDD18PLL
VDD33PLL
(4) VDDA33
Digital Power, Ground (3 Pins)
VDD33
VDD18
VDD33CR
Total 64
2013-2018 Microchip Technology Inc.
DS00001598C-page 9
USB2517/USB2517I
5.0
PIN DESCRIPTIONS AND BUFFER TYPE DESCRIPTIONS
5.1
Pin Descriptions
This section provides a detailed description of each signal. The signals are arranged in functional groups according to
their associated interface.
The “N” symbol in the signal name indicates that the active, or asserted, state occurs when the signal is at a low voltage
level. When “N” is not present before the signal name, the signal is asserted when at the high voltage level.
The terms assertion and negation are used exclusively. This is done to avoid confusion when working with a mixture of
“active low” and “active high” signals. The term assert, or assertion, indicates that a signal is active, independent of
whether that level is represented by a high or low voltage. The term negate, or negation, indicates that a signal is inactive.
TABLE 5-1:
USB2517/USB2517I PIN DESCRIPTIONS
Symbol
64 QFN
Buffer Type
Description
USBUP_DP
USBUP_DM
59
58
IO-U
USB Bus Data
I/O12
These pins connect to the upstream USB bus data signals (Host
port, or upstream hub).
Detect Upstream VBUS Power
Upstream USB Interfaces
VBUS_DET
44
Detects state of Upstream VBUS power. The MCHP Hub monitors
VBUS_DET to determine when to assert the internal D+ pull-up
resistor (signaling a connect event).
When designing a detachable hub, this pin must be connected to
the VBUS power pin of the USB port that is upstream from the hub.
For self-powered applications with a permanently attached host,
this pin must be connected to 3.3V or 5.0V (typically VDD33).
Downstream 7-Port USB 2.0 Interfaces
USBDN[7:1]_DP/
PRT_DIS_P[7:1]
&
USBDN[7:1]_DM/
PRT_DIS_M[7:1]
PRTPWR[7:1]
DS00001598C-page 10
56
54
12
9
7
4
2
55
53
11
8
6
3
1
36
39
30
20
23
26
29
IO-U
Hi-Speed USB Data & Port Disable Strap Option
USBDN_DP[7:1] / USBDN_DM[7:1]: These pins connect to the
downstream USB peripheral devices attached to the hub’s port.
Downstream Port Disable Strap option:
PRT_DIS_P[7:1] / PRT_DIS_M[7:1]: If the strap is enabled by
package and configuration settings (see Table 5-2), this pin will be
sampled at RESET_N negation to determine if the port is disabled.
To disable, pull up with 10K resistor to 3.3V.
O12
USB Power Enable
Enables power to USB peripheral devices downstream.
Note:
The hub supports active high power controllers only!
2013-2018 Microchip Technology Inc.
USB2517/USB2517I
TABLE 5-1:
USB2517/USB2517I PIN DESCRIPTIONS (CONTINUED)
Symbol
64 QFN
Buffer Type
LED_A[7:1]_N/
PRT_SWP[7:1]
15
17
31
33
47
49
51
I/O12
Description
Port LED Indicators & Port Swap strapping option
Indicator LED for ports 1-7. Will be active low when LED support is
enabled via EEPROM or SMBus.
If this strap is enabled by package and configuration settings (see
Table 5-2), this pin will be sampled at RESET_N negation to determine the electrical connection polarity of the downstream USB
Port pins (USB_DP and USB_DM).
Also, the active state of the LED will be determined as follows:
‘0’ = Port Polarity is normal, LED is active high.
LED_B[7:4]_N
LED_B3_N/
GANG_EN
14
16
18
32
34
I/O12
I/O12
‘1’ = Port Polarity (USB_DP and USB_DM) is swapped, LED is
active low.
Enhanced Indicator Port 4-7 LED
Enhanced Indicator LED for ports 4-7. Will be active low when LED
support is enabled via EEPROM or SMBus.
Enhanced Port 3 LED, Gang Power, and Over-current Strap
Option
Enhanced Indicator LED for port 3. Will be active low when LED
support is enabled via EEPROM or SMBus.
GANG_EN: Selects between Gang or Individual Port power and
Over-current sensing.
If this strap is enabled by package and configuration settings (see
Table 5-2), this pin will be sampled at RESET_N negation to determine the mode as follows:
‘0’ = Individual sensing & switching, and LED_B3_N is active high.
‘1’ = Ganged sensing & switching, and LED_B3_N is active low.
2013-2018 Microchip Technology Inc.
DS00001598C-page 11
USB2517/USB2517I
TABLE 5-1:
USB2517/USB2517I PIN DESCRIPTIONS (CONTINUED)
Symbol
64 QFN
Buffer Type
LED_B[2:1]_N/
BOOST[1:0]
48
50
I/O12
Description
Enhanced Port [2:1] LED & PHY Boost strapping option
Enhanced Indicator LED for ports 1 & 2. Will be active low when
LED support is enabled via EEPROM or SMBus.
BOOST[1:0]: If this strap is enabled by package and configuration
settings (see Table 5-2), this pin will be sampled at RESET_N
negation to determine if all PHY ports (upstream and downstream)
operate at a normal or boosted electrical level. Also, the active
state of the LEDs will be determined as follows:
See Section 7.2.1.26, "Register F6h: Boost_Up" and Section
7.2.1.28, "Register F8h: Boost_4:0".
BOOST[1:0] = BOOST_IOUT[1:0]
BOOST[1:0] = ‘00’,
LED_B2_N is active high,
LED_B1_N is active high.
BOOST[1:0] = ‘01’,
LED_B2_N is active high,
LED_B1_N is active low.
BOOST[1:0] = ‘10’,
LED_B2_N is active low,
LED_B1_N is active high.
OCS[7:1]_N
RBIAS
37
38
35
21
22
27
28
63
IPU
BOOST[1:0] = ‘11’,
LED_B2_N is active low,
LED_B1_N is active low.
Over-current Sense
Input from external current monitor indicating an over-current condition.
{Note: Contains internal pull-up to 3.3V supply}
I-R
USB Transceiver Bias
A 12.0k (+/- 1%) resistor is attached from the ground to this pin
to set the transceiver’s internal bias settings.
DS00001598C-page 12
2013-2018 Microchip Technology Inc.
USB2517/USB2517I
TABLE 5-1:
USB2517/USB2517I PIN DESCRIPTIONS (CONTINUED)
Symbol
64 QFN
Buffer Type
SDA/
SMBDATA/
NON_REM1
40
I/OSD12
Description
Serial Port Interface
Serial Data / SMB Data
NON_REM1: Non-removable port strap option.
If this strap is enabled by package and configuration settings (see
Table 5-2) this pin will be sampled (in conjunction with SUSP_IND/
LOCAL_PWR/NON_REM0) at RESET_N negation to determine if
ports [3:1] contain permanently attached (non-removable) devices:
NON_REM[1:0] = ‘00’, All ports are removable,
NON_REM[1:0] = ‘01’, Port 1 is non-removable,
NON_REM[1:0] = ‘10’, Ports 1 & 2 are non-removable,
SCL/
41
I/OSD12
42
I/O12
SMBCLK/
CFG_SEL0
HS_IND/
CFG_SEL1
NON_REM[1:0] = ‘11’, Ports 1, 2 & 3 are non-removable.
Serial Clock (SCL)
SMBus Clock (SMBCLK)
Configuration Select_SEL0: The logic state of this multifunctional
pin is internally latched on the rising edge of RESET_N (RESET_N
negation), and will determine the hub configuration method as
described in Table 5-2, "USB2517I SMBUS or EEPROM Interface
Behavior".
Hi-Speed Upstream port indicator & Configuration Programming
Select
HS_IND: High Speed Indicator for upstream port connection
speed.
The active state of the LED will be determined as follows:
CFG_SEL1 = ‘0’,
HS_IND is active high,
CFG_SEL1 = ‘1’,
HS_IND is active low,
CFG_SEL2
13
2013-2018 Microchip Technology Inc.
I
‘Asserted’ = Hub is connected at HS
‘Negated’ = Hub is connected at FS
CFG_SEL1: The logic state of this pin is internally latched on the
rising edge of RESET_N (RESET_N negation), and will determine
the hub configuration method as described in Table 5-2,
"USB2517I SMBUS or EEPROM Interface Behavior".
Configuration Programming Select
This pin is not available in all packages; it is held to a logic ‘0’ when
not available.
The logic state of this pin is internally latched on the rising edge of
RESET_N (RESET_N negation), and will determine the hub configuration method as described in Table 5-2, "USB2517I SMBUS
or EEPROM Interface Behavior".
DS00001598C-page 13
USB2517/USB2517I
TABLE 5-1:
USB2517/USB2517I PIN DESCRIPTIONS (CONTINUED)
Symbol
XTAL1/
CLKIN
XTAL2
RESET_N
64 QFN
61
60
43
Buffer Type
Description
ICLKx
MISC
Crystal Input/External Clock Input
OCLKx
24MHz crystal or external clock input.
This pin connects to either one terminal of the crystal or to an
external 24MHz clock when a crystal is not used.
Crystal Output
IS
24MHz Crystal
This is the other terminal of the crystal. It can be treated as a no
connect when an external clock source is used to drive XTAL1/
CLKIN. This output must not be used to drive any external circuitry
other than the crystal circuit.
RESET Input
The system can reset the chip by driving this input low. The minimum active low pulse is 1s.
SUSP_IND/
LOCAL_PWR/
NON_REM0
45
I/O12
When the RESET_N pin is pulled to VDD33, the internal POR
(Power on Reset) is enabled and no external reset circuitry is
required. The internal POR holds the internal logic in reset until the
power supplies are stable.
Active/Suspend status LED or Local-Power & Non-Removable
Strap Option
Suspend Indicator: Indicates the USB state of the hub.
‘negated’ = Unconfigured or configured and in USB suspend
‘asserted’ = Hub is configured, and is active (i.e., not in suspend)
Local Power: Detects availability of local self-power source.
Low = Self/local power source is NOT available (i.e., Hub gets all
power from the upstream USB VBus).
High = Self/local power source is available.
NON_REM0 Strap Option:
If this strap is enabled by package and configuration settings (see
Table 5-2, "USB2517I SMBUS or EEPROM Interface Behavior"),
this pin will be sampled (in conjunction with NON_REM1) at
RESET_N negation to determine if ports [3:1] contain permanently
attached (non-removable) devices. Also, the active state of the
LED will be determined as follows:
NON_REM[1:0] = ‘00’, All ports are removable, and the LED is
active high
NON_REM[1:0] = ‘01’, Port 1 is non-removable, and the LED is
active low
NON_REM[1:0] = ‘10’, Ports 1 & 2 are non-removable, and the
LED is active high
NON_REM[1:0] = ‘11’, Ports 1, 2 & 3 are non-removable, and the
LED is active low
DS00001598C-page 14
2013-2018 Microchip Technology Inc.
USB2517/USB2517I
TABLE 5-1:
USB2517/USB2517I PIN DESCRIPTIONS (CONTINUED)
Symbol
64 QFN
Buffer Type
TEST
19
IPD
VDD18
25
Description
TEST pin
XNOR continuity tests all signal pins on the hub. Please contact
your MCHP representative for a detailed description of how this
test mode is enabled and utilized.
Power, Ground, No Connect
VDD Core
64
+1.8V core power. This pin must have a 1.0F (or greater) ±20%
(ESR
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