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參數(shù)資料
| 型號： | HCF4017B-HCF4022B |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 通用總線功能 |
| 英文描述： | COUNTERS/DIVIDERS |
| 中文描述： | 計數(shù)器/分頻器 |
| 文件頁數(shù)： | 7/12頁 |
| 文件大?。?/td> | 290K |
| 代理商： | HCF4017B-HCF4022B |
Typical Output Low (sink) Current Characteristics.
MinimumOutputLow(sink) CurrentCharacteristics.
Typical
teristics.
Output High (source) Current Charac-
Minimum Output High (source ) Current Charac-
teristics.
TYPICAL APPLICATIONS
Divide by N Counter (N
≤
10) with N Decoded Out-
puts.
When the N
th
decoded output is reached (N
th
clock pulse) the S-R flip-flop (constructed from
two NOR gates of the
HCC/HCF4001B
) gener-
ates
a
reset
pulse
HCC/HCF4017B
to its zero count. At this time, if
the N
th
decoded output is greater than or equal
to 6, the C
OUT
line goes high to clock the next
HCC/HCF4017B
counter
decoded output also goes high at this time. Coin-
cidence of the clock low and decoded ”0” output
high resets the S-R flip flop to enable the
HCC/HCF4017B
. If the N
th
decoded output is
less than 6, the C
OUT
line will not go high and,
therefore, cannot be used. In this case ”0”
decoded output may be used to perform the
clocking function for the next counter.
which
clears
the
section.
The
”0”
HCC/HCF4017B/4022B
7/12
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