Sun Microsystems SME5224AUPA-400 - Manual (Page 12)

12
SME5224AUPA-400 400 MHz CPU, 4.0 MB E-Cache
UltraSPARC ™ -II CPU Module
July 1999 Sun Microsystems, Inc
Module Power Consumption
This UltraSPARC-II module requires two supply voltages. The required voltages (provided to the module) for
the V
DD
and V
DD_CORE
, are respectively 3.30V and 2.6V. The estimated maximum power consumption of the
UltraSPARC™–II, 400 MHz CPU, 4.0 Mbyte module (SME5224AUPA-400) is 70 watts at 400 MHz.
The estimated maximum power consumption includes the CPU, the SRAMs, the clock logic and the 8 watts
consumed by the DC-DC regulator.
DC Characteristics [1]
1. Note that this tables specifies the DC characteristics at the UPA 128M connector.
Symbol Parameter Conditions Min Typ Max Units
V
OH
High-level output voltage V
DD
= Min, I
OH
= Max 2.4 – – V
V
IH
High-level input voltage, PECL clocks, 2.28 – – V
High-level input voltage,
except PECL clocks 2.0 – – V
V
IL
Low-level input voltage, PECL clocks – – 1.49 V
Low-level input voltage,
except PECL clocks – – 0.8 V
V
OL
Low-level output voltage V
DD
= Min, I
OL
= Max – – 0.4 V
I
DD
Supply current for V
DD
[2] [3]
2. The supply current for the V
DD
includes the supply current for the CPU, UDB-II, and the SRAMs.
3. The typical DC current values represent the current drawn at nominal voltage with a typical, busy computing load. Variations in the
device, computing load, and system implementation affect the actual current. The maximum DC current values will rarely, if ever, be
exceeded running all known computing loads over the entire operating range. The maximum values are based on simulations.
V
DD
= Max, Freq.=Max – 9.3 12.04 A
I
DD_CORE
Supply current for V
DD_CORE
[4] [3]
4. The supply current for the V
DD_CORE
includes the supply current for the CPU, UDB-II, SRAMs, via the DC to DC regulator.
V
DD_CORE
= Max, Freq.=Max – 10.05 11.6 A
I
OZ
High-impedance output current
(Outputs without pull-ups)
V
DD
= Max, V
O
= 0.4V to 2.4V – – 30 µ A
– – -30 µ A
High-impedance output current
(Outputs with pull-ups)
V
DD
= Max, V
O
= V
SS
to V
DD
– – 250
µ
A
I
I
Input current (inputs without pull-ups) V
DD
= Max, V
I
= V
SS
to V
DD
– – ± 20 µ A
Input current (inputs with pull-ups) V
DD
= Max, V
I
= V
SS
to V
DD
– – -250
µ
A
I
OH
High level output current 4 – – mA
I
OL
Low level output current 8 – – mA