參數(shù)資料
型號(hào): Embedded Pentium 166
廠商: Intel Corp.
英文描述: 32 Bit Embedded Pentium Processor(32位嵌入式奔騰處理器)
中文描述: 32位嵌入式奔騰處理器(32位嵌入式奔騰處理器)
文件頁(yè)數(shù): 29/42頁(yè)
文件大?。?/td> 882K
代理商: EMBEDDED PENTIUM 166
Embedded Pentium
Processor
Datasheet
29
3.0
Electrical Specifications
This section describes the DC and AC specifications for the embedded Pentium processor.
3.1
3.3 V Power Supply
The processor has all V
CC
3.3-V inputs. The CLK and PICCLK inputs can tolerate a 5-V input
signal. This allows the processor to use 5-V or 3.3-V clock drivers.
3.2
3.3 V Inputs and Outputs
The inputs and outputs of the processor are 3.3 V JEDEC standard levels. Both inputs and outputs
are also TTL-compatible, although the inputs cannot tolerate voltage swings above the 3.3 V V
IN
max. The CLK and PICCLK inputs of the processor are 5 V tolerant. This allows a 5-V clock
driver to drive the processor. All other pins are 3.3 V only.
For processor outputs, if the system support components use TTL-compatible inputs, the
components will interface to the processor without extra logic. This is because the processor drives
according to the 5-V TTL specification (but not beyond 3.3 V).
For processor inputs, the voltage must not exceed the 3.3 V V
IH3
maximum specification. System
support components can consist of 3.3 V devices or open-collector devices. In an open-collector
configuration, the external resistor can be biased with the processor’s V
CC
. As the processor’s V
CC
changes from 5 V to 3.3 V, so does this signal’s maximum drive.
3.3
Absolute Maximum Ratings
Functional operating conditions are given in the AC and DC specification tables. Functional
operation at the maximums is not implied or guaranteed. Extended operation beyond the maximum
ratings may affect device reliability. Furthermore, although the Pentium processor contains
protective circuitry to resist damage from static electric discharge, always take precautions to avoid
high static voltages or electric fields.
Warning:
Stressing the device beyond the “Absolute Maximum Ratings” may cause permanent damage.
These are stress ratings only.
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