參數(shù)資料
型號(hào)： HEC4060BT
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
封裝： HEC4060BT<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<week 6, 2004,;HEC4060BT<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<week 6
文件頁數(shù)： 6/7頁
文件大小： 109K
代理商： HEC4060BT
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.
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參數(shù)描述
HEC4060BT,112 功能描述:計(jì)數(shù)器 IC 14-STG RC BIN RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel
HEC4060BT,118 功能描述:計(jì)數(shù)器 IC 14-STG RC BIN RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel
HEC4060BT-T 功能描述:計(jì)數(shù)器 IC 14-STG RC BIN CTR/DIV W/OSC. RoHS:否 制造商:NXP Semiconductors 計(jì)數(shù)器類型:Binary Counters 邏輯系列:74LV 位數(shù):10 計(jì)數(shù)法: 計(jì)數(shù)順序: 工作電源電壓:1 V to 5.5 V 工作溫度范圍:- 40 C to + 125 C 封裝 / 箱體:SOT-109 封裝:Reel
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HEC4066BT 功能描述:模擬開關(guān) IC QUAD BILATERAL SWITCHES RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
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