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MC14060BCPG 参数 Datasheet PDF下载

MC14060BCPG图片预览
型号: MC14060BCPG
PDF下载: 下载PDF文件 查看货源
内容描述: 14位二进制计数器和振荡器 [14-Bit Binary Counter and Oscillator]
分类和应用: 振荡器计数器
文件页数/大小: 10 页 / 125 K
品牌: ONSEMI [ ON SEMICONDUCTOR ]
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MC14060B
11
f
[
RESET
10
R
tc
R
S
C
tc
OUT 1
9 OUT 2
1
2.3 RtcCtc
if 1 kHz
f
100 kHz
and 2R
tc
< R
S
< 10R
tc
(f in Hz, R in ohms, C in farads)
The formula may vary for other frequencies. Recommended
maximum value for the resistors in 1 MW.
Figure 3. Oscillator Circuit Using RC Configuration
TYPICAL RC OSCILLATOR CHARACTERISTICS
8.0
FREQUENCY DEVIATION (%)
4.0
0
− 4.0
− 8.0
− 12
1.0 V
f, OSCILLATOR FREQUENCY (kHz)
V
DD
= 15 V
100
50
20
10
5
2
1
0.5
0.2
0.1
1.0 k
0.0001
10 k
100 k
R
TC
, RESISTANCE (OHMS)
0.001
0.01
C, CAPACITANCE (mF)
1.0 M
0.1
f AS A FUNCTION
OF C
(R
TC
= 56 kW)
(R
S
= 120 k)
V
DD
= 10 V
f AS A FUNCTION
OF R
TC
(C = 1000 pF)
(R
S
2R
TC
)
5.0 V
R
TC
= 56 kW
C = 1000 pF
R
S
= 0, f = 10.15 kHz @ V
DD
= 10, T
A
= 25°C
R
S
= 120 kW, f = 7.8 kHz @ V
DD
= 10 V, T
A
= 25°C
− 16
− 55
− 25
0
25
50
75
T
A
, AMBIENT TEMPERATURE (°C)
100
125
Figure 4. RC Oscillator Stability
Figure 5. RC Oscillator Frequency as a
Function of R
TC
and C
CLOCK
11
RESET
18M
R
O
C
S
C
T
10 OUT 1
9 OUT 2
Figure 6. Typical Crystal Oscillator Circuit
http://onsemi.com
5
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Table 2. Typical Data for Crystal Oscillator Circuit
Characteristic
500 kHz 32 kHz
Circuit Circuit Unit
500
1.0
47
82
20
32
6.2
kHz
kW
kW
pF
pF
Crystal Characteristics
Resonant Frequency
Equivalent Resistance, R
S
External Resistor/Capacitor Values
R
O
C
T
C
S
750
82
20
Frequency Stability
Frequency Changes as a
Function of V
DD
(T
A
= 25°C)
V
DD
Change from 5.0 V to 10 V
V
DD
Change from 10 V to 15 V
Frequency Change as a Function of
Temperature (V
DD
= 10 V)
T
A
Change from − 55°C to
+ 25°C Complete Oscillator (Note 6)
T
A
Change from + 25°C to
+ 125°C Complete Oscillator
(Note 6)
+6.0
+2.0
+2.0
+2.0
ppm
ppm
ppm
ppm
+100
–160
+120
–560
6. Complete oscillator includes crystal, capacitors, and resistors.