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如何看datasheet
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2008-11-01
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How to Read a Datasheet
In order to use a PIC microcontroller, a flip-flop, a photodetector, or
practically any electronic device, you need to consult a datasheet. This is the
document that the manufacturer provides telling you
? the typical device performance
? minimum and maximum requirements and characteristics
? what you can do to the device without harming it
? suggested uses and hints
Manufacturers want you, the designer, to have a successful experience with
their device. They are trying to be helpful. They don’t always succeed. The
datasheet on the following pages is a relatively good datasheet. It tries to
concisely tell you everything you need to know about the device, a common
555 timer chip (the duct-tape of the electronics hobbyist). Most datasheets
for ICs follow the same general layout.
You don’t have to understand everything in a datasheet. There’s a lot of
information that might not be of any use to you. The annotations that follow
try to point out parts of the datasheet that you should pay particular attention
to.
In order to use a PIC microcontroller, a flip-flop, a photodetector, or
practically any electronic device, you need to consult a datasheet. This is the
document that the manufacturer provides telling you
? the typical device performance
? minimum and maximum requirements and characteristics
? what you can do to the device without harming it
? suggested uses and hints
Manufacturers want you, the designer, to have a successful experience with
their device. They are trying to be helpful. They don’t always succeed. The
datasheet on the following pages is a relatively good datasheet. It tries to
concisely tell you everything you need to know about the device, a common
555 timer chip (the duct-tape of the electronics hobbyist). Most datasheets
for ICs follow the same general layout.
You don’t have to understand everything in a datasheet. There’s a lot of
information that might not be of any use to you. The annotations that follow
try to point out parts of the datasheet that you should pay particular attention
to.
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