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PDF USB2514Bi Data sheet ( Hoja de datos )

Número de pieza USB2514Bi
Descripción USB 2.0 Hi-Speed Hub Controller
Fabricantes Microchip 
Logotipo Microchip Logotipo



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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 x in the part number indicates the number of
downstream ports available, while the B 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.
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 I2C EEPROM, or
SMBus slave port
MultiTRAKTM
- 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
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
• 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
ID
• 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

1 page




USB2514Bi pdf
USB251xB/xBi
TABLE 1-1: SUMMARY OF COMPATIBILITIES BETWEEN USB251XB/XBI AND
USB251X/XI/XA/XAI PRODUCTS
Part
Number
Drop-in Replacement
USB2512
USB2512i
USB2512A
USB2512B
USB2512Bi
USB2512B
USB2512Ai
USB2513
USB2513i
USB2514
USB2514i
USB2512Bi
USB2513B
USB2513Bi
USB2514B
USB2514Bi
Conventions
Within this manual, the following abbreviations and symbols are used to improve readability.
Example
BIT
FIELD.BIT
x…y
BITS[m:n]
PIN
zzzzb
0xzzz
zzh
rsvd
code
Section Name
x
<Parameter>
{,Parameter}
[Parameter]
Description
Name of a single bit within a field
Name of a single bit (BIT) in FIELD
Range from x to y, inclusive
Groups of bits from m to n, inclusive
Pin Name
Binary number (value zzzz)
Hexadecimal number (value zzz)
Hexadecimal number (value zz)
Reserved memory location. Must write 0, read value indeterminate
Instruction code, or API function or parameter
Section or Document name
Don’t care
<> indicate a Parameter is optional or is only used under some conditions
Braces indicate Parameter(s) that repeat one or more times
Brackets indicate a nested Parameter. This Parameter is not real and actually
decodes into one or more real parameters.
2010 - 2015 Microchip Technology Inc.
DS00001692C-page 5

5 Page





USB2514Bi arduino
USB251xB/xBi
TABLE 3-1:
USB251XB/XBI PIN LIST (ALPHABETICAL) (CONTINUED)
Pin Numbers
Symbol
Name
PRTPWR1
PRTPWR2
PRTPWR3
PRTPWR4
RBIAS
RESET_N
SCL
SDA
SMBCLK
SMBDATA
SUSP_IND
TEST
USBDM_UP
USBDP_UP
USBDM_DN1
USBDM_DN2
USBDM_DN3
USBDM_DN4
USBDP_DN1
USBDP_DN2
USBDP_DN3
USBDP_DN4
VBUS_DET
VDD33
VDD33
VDDA33
VDDA33
VDDA33
VDDA33
XTALIN
XTALOUT
USB Port Power
Enable
USB Transceiver
Bias
Reset Input
Serial Clock
Serial Data Signal
System
Management Bus
Clock
System
Management Bus
Data Signal
Active/Suspend
Status Indicator
Test Pin
USB Bus Data
Hi-Speed USB Data
Upstream VBUS
Power Detection
3.3 V Digital Power
3.3 V Analog Power
Crystal Input
Crystal Output
12
16
- 18
- 20
35
26
24
22
24
22
28
11
30
31
1
3
-6
-8
2
4
-7
-9
27
15
23
5
10
29
36
33
32
2010 - 2015 Microchip Technology Inc.
DS00001692C-page 11

11 Page







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