參數(shù)資料
型號(hào)： STPCI0166BTC3
廠商： 意法半導(dǎo)體
元件分類(lèi)： 微處理器
英文描述： PC Compatible Embedded Microprocessor
中文描述： PC兼容嵌入式微處理器
文件頁(yè)數(shù)： 34/55頁(yè)
文件大?。?/td> 787K
代理商： STPCI0166BTC3
ELECTRICAL SPECIFICATIONS
34/55
Issue 1.1
4 ELECTRICAL SPECIFICATIONS
4.1 INTRODUCTION
The electrical specifications in this chapter are
valid for the STPC Industrial.
4.2 ELECTRICAL CONNECTIONS
4.2.1 Power/Ground Connections/Decoupling
Due to the high frequency of operation of the
STPC Industrial, it is necessary to install and test
this
device
using
standard
techniques. The high clock frequencies used in
the STPC Industrial and its output buffer circuits
can cause transient power surges when several
output buffers switch output levels simultaneously.
These effects can be minimized by filtering the
DC power leads with low-inductance decoupling
capacitors, using low impedance wiring, and by
utilizing all of theVSS and VDD pins.
high
frequency
4.2.2 Unused Input Pins
All inputs not used by the designer and not listed
in the table of pin connections in Section 3 should
be connected either to VDD or to VSS. Connect
active-high inputs to VDD through a 20 k
(
±
10%) pull-down resistor and active-low inputs to
VSS and connect active-low inputs to VCC
through a 20 k
(
±
10%) pull-up resistor to prevent
spurious operation.
4.2.3 Reserved Designated Pins
Pins
disconnected. Connecting a reserved pin to a
pull-up resistor, pull-down resistor, or an active
signal could
cause unexpected results
possible circuit malfunctions.
designated
reserved
should
be
left
and
4.3 ABSOLUTE MAXIMUM RATINGS
The following table lists the absolute maximum
ratings for the STPC Industrial device. Stresses
beyond those listed under Table 4-1 limits may
cause permanent damage to the device. These
are stress ratings only and do not imply that
operation under any conditions other than those
specified in section ”O(jiān)perating Conditions”.
Exposure to conditions beyond those outlined in
Table 4-1 may (1) reduce device reliability and (2)
result in premature failure even when there is no
immediately apparent sign of failure. Prolonged
exposure to conditions at or near the absolute
maximum ratings (Table 4-1) may also result in
reduced useful lifeand reliability.
4.3.1 5V Tolerance
The STPC is capable of running with I/O systems
that operate at 5V such as PCI and ISA devices.
Certain pins of the STPC tolerate inputs up to
5.5V. Above this limit thecomponent is likely to
sustain permanent damage.
All the pin that are V
5T
have been denoted with a
* besides the Signal Name in Table 3-1 .
Table 4-1. Absolute Maximum Ratings
Symbol
V
DDx
V
I
, V
O
V
5T
T
STG
T
OPER
P
TOT
Parameter
Minimum
-0.3
-0.3
2.5
-40
0
-
Maximum
4.0
VDD + 0.3
5.5
+150
+70
4.8
Units
V
V
DC Supply Voltage
Digital Input and Output Voltage
5Volt Tolerance
Storage Temperature
Operating Temperature
Maximum Power Dissipation
°
C
°
C
W
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