XIO2000AI datasheet(27/159 Pages) TAOS

27 / 159 page

Introduction

April 2007 Revised October 2008

SCPS155C

Table 2−5. Power Supply Terminals

SIGNAL

GZZ/ZZZ

BALL #

ZHC

BALL #

ZHH

BALL #

I/O

TYPE

EXTERNAL

PARTS

DESCRIPTION

VCCP

A04, J01

B04, G02

A04, G01

PWR

Bypass

capacitors

5.0-V or 3.3-V PCI bus clamp voltage

to set maximum I/O voltage tolerance

of the secondary PCI bus signals

VDD_15

D09, H14, J04,

P07, P15

D08, F14, G04,

L05, N13

D08, F14, G04,

L05, N12

PWR

Bypass

capacitors

1.5-V digital core power terminals

VDDA_15

F17, J14, J15,

G15

D13, E11, H11,

H13

E11, F12, H11,

H13

PWR

Pi filter

1.5-V analog power terminal

VDD_33

C06, C13, D10,

E03, H04, M03,

P09, P10, P11,

R05, R14, T13

D04, D06, D10,

F04, F09, J06,

J07, L04, L08,

L09, L10, P12

D04, D05, D09,

F04, F09, J06,

J07, K04, L08,

M09, M10, M11

PWR

Bypass

capacitors

3.3-V digital I/O power terminals

VDD_33_AUX

K14

J14

J12

PWR

Bypass

capacitors

3.3-V auxiliary power terminal

Note: This terminal is connected to

VSS through a pulldown resistor if no

auxiliary supply is present.

VDDA_33

D15, K15

C13, J11

C12, J11

PWR

Pi filter

3.3-V analog power terminal

Table 2−6. Ground Terminals

SIGNAL

GZZ/ZZZ

BALL #

ZHC

BALL #

ZHH

BALL #

I/O

TYPE

DESCRIPTION

VSS

C05, C14, D03, D08, D11,

G04, G17, K04, K17, N03,

P08, R04, R06, R10, R11,

R12, R13, R17

F06, F07, F08, F13, G06,

G07, G08, G09, H06, H07,

H08, H09, J08, J09, M08,

M09, M12, P11

F06, F07, F08, F13, G06,

G07, G08, G09, H06, H07,

H08, H09, J08, J09, L09,

L11, M08, N13

GND

Digital ground terminals

VSS

G07, G08, G09, G10, G11,

H07, H08, H09, H10, H11,

J07, J08, J09, J10, J11,

K07, K08, K09, K10, K11,

L07, L08, L09, L10, L11

GND

Ground terminals for

thermally-enhanced

package

VSSA

B17, E15, F15, F16, G14,

G16, H15, J16, L15

A14, E12, F11, F12, G11,

G12, K11, L11

B14, D12, E12, F11, G11,

G12, K11, P13

GND

Analog ground terminal

Table 2−7. Combined Power Outputs

SIGNAL

GZZ/ZZZ

BALL #

ZHC

BALL #

ZHH

BALL #

I/O

TYPE

EXTERNAL

PARTS

DESCRIPTION

VDD_15_COMB

M17

K13

Feed

through

Bypass

capacitors

Internally-combined 1.5-V main and VAUX power output for

external bypass capacitor filtering. Supplies all internal

1.5-V circuitry powered by VAUX.

Caution: Do not use this terminal to supply external power

to other devices.

VDD_33_COMB

K16

H12

H14

Feed

through

Bypass

capacitors

Internally-combined 3.3-V main and VAUX power output for

external bypass capacitor filtering. Supplies all internal

3.3-V circuitry powered by VAUX.

Caution: Do not use this terminal to supply external power

to other devices.

VDD_33_COMBIO

L14

J12

K12

Feed

through

Bypass

capacitors

Internally-combined 3.3-V main and VAUX power output for

external bypass capacitor filtering. Supplies all internal

3.3-V input/output circuitry powered by VAUX.

Caution: Do not use this terminal to supply external power

to other devices.

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