- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄368023 > PIC12F510 (Microchip Technology Inc.) 8/14-Pin, 8-Bit Flash Microcontroller PDF資料下載
參數(shù)資料
| 型號： | PIC12F510 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 8/14-Pin, 8-Bit Flash Microcontroller |
| 中文描述： | 8/14-Pin，8位閃存微控制器 |
| 文件頁數(shù)： | 61/114頁 |
| 文件大?。?/td> | 908K |
| 代理商： | PIC12F510 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁當(dāng)前第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁
2006 Microchip Technology Inc.
Preliminary
DS41268B-page 59
PIC12F510/16F506
TABLE 10-2:
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR –
PIC12F510/16F506
(2)
10.2.3
EXTERNAL CRYSTAL OSCILLATOR
CIRCUIT
Either a prepackaged oscillator or a simple oscillator
circuit with TTL gates can be used as an external
crystal oscillator circuit. Prepackaged oscillators
provide a wide operating range and better stability. A
well-designed crystal oscillator will provide good perfor-
mance with TTL gates. Two types of crystal oscillator
circuits can be used: one with parallel resonance or one
with series resonance.
Figure 10-3 shows implementation of a parallel reso-
nant oscillator circuit. The circuit is designed to use the
fundamental frequency of the crystal. The 74AS04
inverter performs the 180-degree phase shift that a
parallel oscillator requires. The 4.7 k
Ω
resistor provides
the negative feedback for stability. The 10 k
Ω
potenti-
ometers bias the 74AS04 in the linear region. This
circuit could be used for external oscillator designs.
FIGURE 10-3:
EXTERNAL PARALLEL
RESONANT CRYSTAL
OSCILLATOR CIRCUIT
Figure 10-4 shows a series resonant oscillator circuit.
This circuit is also designed to use the fundamental
frequency of the crystal. The inverter performs a 180-
degree phase shift in a series resonant oscillator
circuit. The 330
Ω
resistors provide the negative
feedback to bias the inverters in their linear region.
FIGURE 10-4:
EXTERNAL SERIES
RESONANT CRYSTAL
OSCILLATOR CIRCUIT
10.2.4
EXTERNAL RC OSCILLATOR
For timing insensitive applications, the EXTRC device
option offers additional cost savings. The EXTRC oscil-
lator frequency is a function of the supply voltage, the
resistor (R
EXT
) and capacitor (C
EXT
) values, and the
operating temperature. In addition to this, the oscillator
frequency will vary from unit-to-unit due to normal pro-
cess parameter variation. Furthermore, the difference
in lead frame capacitance between package types will
also affect the oscillation frequency, especially for low
C
EXT
values. The user also needs to take into account
variation due to tolerance of external R and C
components used.
Figure 10-5 shows how the R/C combination is
connected to the PIC12F510/16F506 devices. For
R
EXT
values below 5.0 k
Ω
, the oscillator operation may
become unstable or stop completely. For very high
R
EXT
values (e.g., 1 M
Ω
), the oscillator becomes
sensitive to noise, humidity and leakage. Thus, we
recommend keeping R
EXT
between 5.0 k
Ω
and
100 k
Ω
.
Osc.
Type
Resonator
Freq.
Cap.Range
C1
Cap. Range
C2
LP
XT
32 kHz
(1)
200 kHz
1 MHz
4 MHz
20 MHz
For V
DD
> 4.5V, C1 = C2
≈
30 pF is
recommended.
These values are for design guidance
only. Rs may be required to avoid over-
driving crystals beyond the drive level
specification. Since each crystal has its
own characteristics, the user should con-
sult the crystal manufacturer for appropri-
ate values of external components.
PIC16F506 only.
15 pF
47-68 pF
15 pF
15 pF
15-47 pF
15 pF
47-68 pF
15 pF
15 pF
15-47 pF
HS
(3)
Note 1:
2:
3:
20 pF
+5V
20 pF
10k
4.7k
10k
74AS04
XTAL
10k
74AS04
CLKIN
To Other
Devices
PIC12F510
PIC16F506
330
74AS04
74AS04
CLKIN
PIC12F510
PIC16F506
To Other
Devices
XTAL
330
74AS04
0.1 mF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PIC12F519 | 8-Pin, 8-Bit Flash Microcontroller |
| PIC12F609 | 8-bit PIC㈢ Microcontrollers with High Voltage Support and Fan Control Capabilities |
| PIC12F615 | 8-bit PIC㈢ Microcontrollers with High Voltage Support and Fan Control Capabilities |
| PIC12HV609 | 8-bit PIC㈢ Microcontrollers with High Voltage Support and Fan Control Capabilities |
| PIC12HV615 | 8-Pin Flash-Based, 8-Bit CMOS Microcontrollers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC12F510_07 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8/14-Pin, 8-Bit Flash Microcontroller |
| PIC12F510_13 | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8/14-Pin, 8-Bit Flash Microcontrollers |
| PIC12F510-E/L | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8/14-Pin, 8-Bit Flash Microcontroller |
| PIC12F510-E/LQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8/14-Pin, 8-Bit Flash Microcontroller |
| PIC12F510-E/LSQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8/14-Pin, 8-Bit Flash Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。