SC2200 NSC [National Semiconductor], SC2200 Datasheet - Page 79

• Manufacturer Part Number: SC2200
• Description: Thin Client On a Chip
• Manufacturer: NSC [National Semiconductor]

Revision 3.0
Signal Definitions
2.4.20 Power, Ground and No Connections
1.
Signal Name
AV
AV
V
V
AV
AV
AV
AV
V
V
V
V
V
V
V
V
NC
PLL2
PLL3
CCCRT
SSCRT
BAT
SB
SBL
CORE
IO
SS
SSPLL2
SSPLL3
CCUSB
SSUSB
CCCRT
SSCRT
All power sources must be connected, even if the function is not used
See Table 2-3
See Table 2-3
See Table 2-3
See Table 2-3
on page 32.
(Total of 25)
on page 32.
(Total of 32)
on page 32.
(Total of 57)
on page 32.
L3, M1, N1
L1, N3, P3
(Total of 8)
EBGA
(Continued)
AG1
E28
C31
AF4
D30
F29
H28
R3
R1
K3
K2
Ball No.
A12, C13, D15
B14, C14, C15
See Table 2-5
See Table 2-5
See Table 2-5
See Table 2-5
on page 47.
(Total of 28)
on page 47.
(Total of 43)
on page 47.
(Total of 92)
on page 47.
(Total of 8)
TEPBGA
AK3
C16
A17
AJ4
D27
C27
D12
C12
AL3
AL5
AL6
1
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
PWR
Type
GND
GND
GND
GND
GND
GND
---
79
Description
PLL2 Analog Ground Connection.
PLL3 Analog Ground Connection.
3.3V PLL2 Analog Power Connection. Low noise
power for PLL2 and PLL5.
3.3V PLL3 Analog Power Connection. Low noise
power for PLL3, PLL4, and PLL6.
3.3V Analog USB Power Connection. Low noise
power.
Analog USB Ground Connection.
3.3V Analog CRT DAC Power Connections. Low
noise power.
Analog CRT DAC Ground Connections. Return
current.
1.8V / 2.0V CRT DAC Digital Power Connection. Can
be directly connected to V
board).
CRT DAC Digital Ground Connection. Can be
directly connected to V
Battery. Provides battery back-up to the RTC and
ACPI registers, when V
value (see Table 8-2 on page 358). The ball is con-
nected to the internal logic through a series resistor for
UL protection.
3.3V Standby Power Supply. Provides power to the
Real-Time Clock (RTC) and ACPI circuitry while the
main power supply is turned off.
1.8V / 2.0V Standby Power Supply. Provides power to
the internal logic while the main power supply is turned
off. This signal requires a 0.1 F bypass capacitor to
V
1.8V / 2.0V Core Processor Power Connections.
3.3V I/O Power Connections.
Ground Connections.
No Connections. These lines should be left discon-
nected. Connecting a pull-up/-down resistor or to an
active signal could cause unexpected results and pos-
sible malfunctions.
SS
. This supply must be present when V
SS
SB
on PCB.
CORE
is lower than the minimum
on PCB (printed circuit
SB
www.national.com
is present.