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280
Revision 1.1
G
7.0
This chapter provides information about:
Electrical Specifications
General electrical specifications
DC characteristics
AC characteristics
All voltage values in this chapter are with respect to V
SS
unless otherwise noted.
7.1
GENERAL SPECIFICATIONS
7.1.1
When designing in the SC1100, use standard high fre-
quency design techniques to reduce parasitic effects. For
example:
Power/Ground Connections and Decoupling
Filter the DC power leads with low-inductance decou-
pling capacitors.
Use low-impedance traces.
National Semiconductor’s application note “Geode SC1100
Information Appliance On A Chip: Layout Recommenda-
tions” provides detailed guidelines for producing optimal
PCB layouts.
7.1.2
Stresses beyond those indicated in the following table may
cause permanent damage to the SC1100, reduce device
reliability and result in premature failure, even when there
is no immediately apparent sign of failure. Prolonged expo-
sure to conditions at or near the absolute maximum ratings
may also result in reduced device life span and reduced
reliability.
Absolute Maximum Ratings
Note:
The values in the following table are stress ratings
only. They do not imply that operation under other
conditions is impossible.
Table 7-1. Absolute Maximum Ratings
Symbol
Parameter
Min
Max
Unit
Comments
T
CASE
Operating case temperature
1
-10
110
o
C
T
STORAGE
Storage temperature
2
-45
125
o
C
V
CC
Supply voltage
See Table
7-2
V
V
MAX
Voltage on
5V tolerant balls
-0.5
6.0
V
Others
3
4
-0.5
4.2
V
I
IK
Input clamp current
1
-0.5
10
mA
I
OK1
Output clamp current
25
mA
1.
2.
3.
4.
Power applied - no clocks.
No bias.
Voltage min is -0.8V with a transient voltage of 20 ns or less.
Voltage max is 4.0V with a transient voltage of 20 ns or less.