參數(shù)資料
型號: 8XC196LX
英文描述: 8XC196Lx - 8XC196Lx Supplement to 8X196Kx. 8X196Jx. 87C196CA User's Manual
中文描述: 8XC196Lx - 8XC196Lx補(bǔ)編8X196Kx。 8X196Jx。 87C196CA用戶手冊
文件頁數(shù): 124/136頁
文件大小: 659K
代理商: 8XC196LX
8XC196LXSUPPLEMENT
Glossary-4
external address
A 21
-bit address is presented on the microcontroller’s
pins. The address decoded by an external device
depends on how many of these address pins the
external system uses. See also
internal address
.
f
Lowercase “f” represents the frequency of the internal
clock.
far constants
Constants that can be accessed only with extended
instructions. See also
near constants
.
far data
Data that can be accessed only with extended instruc-
tions. See also
near data
.
feedthrough
The
attenuation
from an input voltage on the selected
channel to the A/D output after the
sample window
closes. The ability of the
A/D converter
to reject an
input on its selected channel after the sample window
closes.
FET
Field-effect transistor.
full-scale error
The difference between the ideal and actual input
voltage corresponding to the final (full-scale)
code
transition
of an
A/D converter
.
hold latency
The time it takes the microcontroller to assert HLDA#
after an external device asserts HOLD#.
ideal characteristic
The
characteristic
of an ideal
A/D converter
. An ideal
characteristic is unique: its first
code transition
occurs
when the input voltage is 0.5 LSB, its full-scale (final)
code transition occurs when the input voltage is 1.5
LSB less than the full-scale reference, and its code
widths are all exactly 1.0 LSB. These properties result
in a conversion without
zero-offset
,
full-scale
, or
linearity
errors.
Quantizing error
is the only error
seen in an ideal A/D converter.
input leakage
Current leakage from an input pin to power or ground.
input series resistance
The effective series resistance from an analog input
pin to the
sample capacitor
of an
A/D converter
.
integer
Any member of the set consisting of the positive and
negative whole numbers and zero.
A 16-bit, signed variable with values from –2
15
through +2
15
–1.
INTEGER
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