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| 型號： | PIC12F519-I/SN |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 36/96頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC PIC MCU FLASH 1KX12 8SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 系列： | PIC® 12F |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 8MHz |
| 外圍設(shè)備： | POR，WDT |
| 輸入/輸出數(shù)： | 5 |
| 程序存儲器容量： | 1.5KB（1K x 12） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 41 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2 V ~ 5.5 V |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 637 (CN2011-ZH PDF) |
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2008 Microchip Technology Inc.
DS41319B-page 39
PIC12F519
8.2
Oscillator Configurations
8.2.1
OSCILLATOR TYPES
The PIC12F519 device can be operated in up to four
different oscillator modes. The user can program using
the Configuration bits (FOSC<1:0>), to select one of
these modes:
LP:
Low-Power Crystal
XT:
Crystal/Resonator
INTRC: Internal 4 MHz or 8 MHz Oscillator
EXTRC: External Resistor/Capacitor
8.2.2
CRYSTAL OSCILLATOR/CERAMIC
RESONATORS
In XT or LP modes, a crystal or ceramic resonator is
connected
to
the
(GP5)/OSC1/(CLKIN)
and
(GP4)/OSC2 pins to establish oscillation (Figure 8-1).
The PIC12F519 oscillator designs require the use of a
parallel cut crystal. Use of a series cut crystal may give a
frequency
out
of
the
crystal
manufacturers
specifications. When in XT or LP modes, the device can
have
an
external
clock
source
drive
the
(GP5)/OSC1/CLKIN pin (Figure 8-2). When the part is
used in this fashion, the output drive levels on the OSC2
pin are very weak. This pin should be left open and
unloaded. Also when using this mode, the external clock
should observe the frequency limits for the clock mode
chosen (XT or LP).
FIGURE 8-1:
CRYSTAL OPERATION
(OR CERAMIC
RESONATOR)
(XT OR LP OSC
CONFIGURATION)
FIGURE 8-2:
EXTERNAL CLOCK INPUT
OPERATION (XT OR LP
OSC CONFIGURATION)
TABLE 8-1:
CAPACITOR SELECTION FOR
CERAMIC RESONATORS
TABLE 8-2:
CAPACITOR SELECTION FOR
CRYSTAL OSCILLATOR –
PIC12F519(2)
Note 1:
The user should verify that the device
oscillator
starts
and
performs
as
expected. Adjusting the loading capacitor
values and/or the Oscillator mode may
be required.
Note
1:
See Capacitor Selection tables for
recommended values of C1 and C2.
2:
A series resistor (RS) may be required for AT
strip cut crystals.
3:
RF approx. value = 10 M
Ω.
C1(1)
C2(1)
XTAL
OSC2
OSC1
RF(3)
Sleep
To internal
logic
RS(2)
PIC12F519
Osc
Type
Resonator
Freq.
Cap. Range
C1
Cap. Range
C2
XT
4.0 MHz
30 pF
Note:
Component values shown are for design
guidance only. Since each resonator has
its own characteristics, the user should
consult the resonator manufacturer for
appropriate values of external compo-
nents.
Osc
Type
Resonator
Freq.
Cap.Range
C1
Cap. Range
C2
LP
32 kHz(1)
15 pF
XT
200 kHz
1 MHz
4 MHz
47-68 pF
15 pF
47-68 pF
15 pF
Note 1:
For VDD > 4.5V, C1 = C2
≈ 30 pF is
recommended.
2:
Component values shown are for design
guidance only. Rs may be required to
avoid overdriving crystals with low drive
level specification. Since each crystal has
its own characteristics, the user should
consult the crystal manufacturer for
appropriate values of external compo-
nents.
Clock from
ext. system
OSC1
OSC2
Open
PIC12F519
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| PIC12F519T-I/MC | 功能描述:8位微控制器 -MCU 15KB Flash Prgrm 64B 8MHz Intrnl Oscilatr RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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