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VSC8221 Datasheet(PDF) 15 Page - Microsemi Corporation

Part # VSC8221
Description  Single Port 10/100/1000BASE-T PHY with1.25 Gbps SerDes for SFPs/GBICs
PDF  138 Pages
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Manufacturer  MICROSEMI [Microsemi Corporation]
Direct Link  http://www.microsemi.com
Logo MICROSEMI - Microsemi Corporation

VSC8221 Datasheet(HTML) 15 Page - Microsemi Corporation

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VSC8221
Data Sheet
VMDS-10106 Revision 4.1
December 2006
15 of 26
26
8.2 Ball Locations and Signal Names
Figure 3. Signal Type Descriptions
8.3 Signal Type Descriptions
1
2
3
4
5
6
7
8
9
10
A
MODDEF0/
CLKOUT
RESET
LED1
LED2
CMODE0
TXVPD
TXVPC
TXVPB
TXVPA
XTAL2
A
B
RXLOS/
SiGDET
TDO
LED0
CMODE3
CMODE1
TXVND
TXVNC
TXVNB
TXVNA
XTAL1/
REFCLK
B
C
NC
TCK
TDi
VDDiOC-
TRL
CMODE2
VSS
VSS
VDD33A
VDDREG
REGEN
C
D
NC
NC
TMS
VSS
VSS
VSS
VSS
VSS
VDD33A
REGOUT
D
E
NC
NC
TRST
VSS
VSS
VSS
VSS
VSS
VDD12A
REFREXT
E
F
NC
NC
VDD12
VSS
VSS
VSS
VSS
VDD12
EECLK/
PLLMODE
REFFiLT
F
G
NC
NC
VDD12
VSS
VSS
VSS
VSS
TXDiS/
SRESET
EEDAT
VDD12
G
H
NC
NC
NC
VDDiO
NC
VSS
VDD12
VDDiOMi-
CRO
MDiNT
CLKOUTMi-
CRO/OSC-
DiS
H
J
NC
NC
NC
NC
NC
NC
SCLKP
SCLKN
MODDEF2/
MDiO
MODDEF1/
MDC
J
K
NC
NC
NC
NC
NC
NC
RDN
RDP
TDP
TDN
1
2
3
4
5
6
7
8
9
10
Table 3. Signal Type Descriptions
Symbol
Signal Type
Description
i
Digital input
Standard digital input signal. No internal pull-up or pull-down.
iPU
Digital input with Pull-up
Standard digital input. includes on-chip 100k pull-up to VDDiO,
VDDiOMiCRO,VDDiOCTRL or the VDD33A supply. Refer to Section 15: “Power
Supply and Associated Functional Signals” for details.
iPU5V
Digital input with Pull-up
Standard digital input. includes on-chip 100k pull-up to
VDDiO,VDDiOMiCRO,VDDiOCTRL or the TXVDD supply. Refer to
Section 15: “Power Supply and Associated Functional Signals” for details. This
input pin is 5v tolerant.
iPD
Digital input with Pull-down
Standard digital input. includes on-chip 100k pull-down to GND.
iPD5V
Digital input with Pull-down
Standard digital input. includes on-chip 100k pull-down to GND. This input pin is 5V
tolerant.
iDiFF
Differential input Pair
SerDes differential input pair with 100
Ω or 150Ω differential terminations. Pins
should be AC-coupled with external 0.01
µF capacitors.



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