參數(shù)資料
型號(hào): 74HC6323
廠商: NXP Semiconductors N.V.
元件分類: 通用總線功能
英文描述: Programmable ripple counter with oscillator; 3-state
中文描述: 紋波計(jì)數(shù)器的可編程振蕩器,3態(tài)
文件頁(yè)數(shù): 14/15頁(yè)
文件大?。?/td> 90K
代理商: 74HC6323
September 1993
14
Philips Semiconductors
Product specification
Programmable ripple counter with
oscillator; 3-state
74HC/HCT6323A
Fig.13 Typical setup for a crystal oscillator
operating in the fundamental mode
(1 MHz to 25 MHz).
Above 5 MHz replace R2 by a capacitor of
half the value of C2.
C
at which a crystal is specified (or adjusted)
equals for this application C1 . C2/C1 + C2.
handbook, halfpage
MBA328 - 1
Rbias
100 k
to 1
M
R2
2.2
k
100 pF
C2
22 to
37 pF
C1
6
X2
X1
7
MR (from logic)
Fig.14 Typical set-up for a crystal oscillator
operating in the third overtone mode without
the use of an inductor.
Applicable for third overtone crystals (lower
damping resistance at the third harmonic
frequency) at typical 50 MHz. For lower
frequencies extra load capacitors must be
supplied, or increase bias resistor.
handbook, halfpage
MBA329 - 1
Rbias
3 k
C1
6
X2
X1
7
MR (from logic)
1 to 10 pF
(optional)
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