參數(shù)資料
型號(hào)： HEF4060B
廠商： NXP Semiconductors N.V.
元件分類： 通用總線功能
英文描述： 14-stage ripple-carry binary counter/divider and oscillator(14級(jí)紋波進(jìn)位二進(jìn)制計(jì)數(shù)器/除法器和振蕩器)
中文描述： 14級(jí)紋波進(jìn)行二進(jìn)制計(jì)數(shù)器/分頻器和振蕩器（14級(jí)紋波進(jìn)位二進(jìn)制計(jì)數(shù)器/除法器和振蕩器）
文件頁數(shù)： 6/7頁
文件大?。?/td> 110K
代理商： HEF4060B
January 1995
6
Philips Semiconductors
Product specification
14-stage ripple-carry binary counter/divider
and oscillator
HEF4060B
MSI
Timing component limitations
The oscillator frequency is mainly determined by
R
t
C
t
, provided R
t
<< R2 and R2C2 << R
t
C
t
. The function
of R2 is to minimize the influence of the forward voltage
across the input protection diodes on the frequency. The
stray capacitance C2 should be kept as small as possible.
In consideration of accuracy, C
t
must be larger than the
inherent stray capacitance. R
t
must be larger than the
LOCMOS ‘ON’ resistance in series with it, which typically
is 500
at V
DD
= 5 V, 300
at V
DD
= 10 V and 200
at
V
DD
= 15 V.
The recommended values for these components to
maintain agreement with the typical oscillation formula are:
C
t
≥
100 pF, up to any practical value,
10 k
≤
R
t
≤
1 M
.
Typical crystal oscillator circuit
In Fig.5, R2 is the power limiting resistor. For starting and
maintaining oscillation a minimum transconductance is
necessary.
Fig.5
External component connection for crystal
oscillator.
Fig.6
Test set-up for measuring forward transconductance g
fs
= di
o
/dv
i
at v
o
is constant (see also graph Fig.7);
MR = LOW.
相關(guān)PDF資料
PDF描述
HEF4060BD 14-stage ripple-carry binary counter/divider and oscillator
HEF4060BDF MSI 14-stage ripple-carry binary counter/divider and oscillator
HEF4060BPN MSI 14-stage ripple-carry binary counter/divider and oscillator
HEF4060BTD MSI 14-stage ripple-carry binary counter/divider and oscillator
HEF4066BD Quadruple bilateral switches
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HEF4060BD 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:14-stage ripple-carry binary counter/divider and oscillator
HEF4060BDF 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:MSI 14-stage ripple-carry binary counter/divider and oscillator
HEF4060BF 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:14-stage ripple-carry binary counter/divider and oscillator
HEF4060BN 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:14-stage ripple-carry binary counter/divider and oscillator
HEF4060BP 制造商:NXP Semiconductors 功能描述:IC 4000 LOCMOS LOGIC 制造商:NXP Semiconductors 功能描述:IC, 4000 LOCMOS LOGIC 制造商:NXP Semiconductors 功能描述:IC, 4000 LOCMOS LOGIC; Counter Type:Binary; Clock Frequency:30MHz; Count Maximum:14; Supply Voltage Min:4.5V; Supply Voltage Max:15.5V; Logic Case Style:DIP; No. of Pins:16; Operating Temperature Min:-40C; Operating Temperature ;RoHS Compliant: Yes
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