LSI LSI53C895A, Technical Manual

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Power and Ground Signals 3-17
3.7 Power and Ground Signals
Table 3.14 describes the Power and Ground signals.
Table 3.14 Power and Ground Signals
Name PQFP BGA Pos Type Strength Description
VSS_I/O 8, 18, 31, 41,
56, 78, 91,
110, 120, 128,
131, 139, 151,
169, 179, 193,
200 A1, D4, D8,
D13, D17, H4,
H17, J9–12,
K9–12, L9–12,
M9–12, N4,
N17, U4, U8,
U13, U17 G N/A Ground for PCI bus
drivers/receivers, SCSI bus
drivers/receivers, local memory
interface drivers, and other I/O
pins.
VDD_I/O 2, 13, 23, 26,
36, 46, 60, 73,
81, 86, 96,
115, 125, 134,
144, 164, 174,
184, 197 D6, D11, D15,
F4, F17, K4,
L17, R4, R17,
U6, U10, U15 P N/A Power for PCI bus
drivers/receivers, SCSI bus
drivers/receivers, local memory
interface drivers/receivers, and
other I/O pins.
VDD_CORE 64, 190 P1–2, P17,
R19 P N/A Power for core logic.
VSS_CORE 68, 187 M3, N18, P20 G N/A Ground for core logic.
VSS_CORE2 N1 G N/A Ground for core logic.
VDDA 85 H19 P N/A Power for analog cells (clock
quadrupler and diffsense logic).
VSSA 83 J18 G N/A Ground for analog cells (clock
quadrupler and diffsense logic).
VDD_RBIAS
RBIAS 129
130 A11
A10 I N/A Used to connect an external
resistor to generate the bias
current used by LVDlink pads.
Resistor value should be 9.76 k
Ω
.
Connect other end of resistor to
V
DD
.