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參數(shù)資料
| 型號： | PIC12F683-I/P |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 3/176頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU FLASH 2KX14 8DIP |
| 產(chǎn)品培訓(xùn)模塊： | Asynchronous Stimulus 8-bit PIC® Microcontroller Portfolio |
| Digi-Key 應(yīng)用說明： | AN0005 PWM Example with Microchip's CCP Module AN0005 Example Code |
| 標(biāo)準(zhǔn)包裝： | 60 |
| 系列： | PIC® 12F |
| 核心處理器： | PIC |
| 芯體尺寸： | 8-位 |
| 速度： | 20MHz |
| 外圍設(shè)備： | 欠壓檢測/復(fù)位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 5 |
| 程序存儲器容量： | 3.5KB（2K x 14） |
| 程序存儲器類型： | 閃存 |
| EEPROM 大?。?/td> | 256 x 8 |
| RAM 容量： | 128 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2 V ~ 5.5 V |
| 數(shù)據(jù)轉(zhuǎn)換器： | A/D 4x10b |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 8-DIP（0.300"，7.62mm） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 645 (CN2011-ZH PDF) |
| 配用： | DM163029-ND - BOARD PICDEM FOR MECHATRONICS AC162058-ND - HEADER MPLAB ICD2 FOR PIC12F683 I3-DB12F683-ND - BOARD DAUGHTER ICEPIC3 ACICE0201-ND - MPLABICE 8P 300 MIL ADAPTER AC124001-ND - MODULE SKT PROMATEII 8DIP/SOIC |
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PIC12F683
DS41211D-page 98
2007 Microchip Technology Inc.
12.7
Power-Down Mode (Sleep)
The Power-down mode is entered by executing a
SLEEP
instruction.
If the Watchdog Timer is enabled:
WDT will be cleared but keeps running.
PD bit in the STATUS register is cleared.
TO bit is set.
Oscillator driver is turned off.
I/O ports maintain the status they had before SLEEP
was executed (driving high, low or high-impedance).
For lowest current consumption in this mode, all I/O pins
should be either at VDD or VSS, with no external circuitry
drawing current from the I/O pin and the comparators
and CVREF should be disabled. I/O pins that are
high-impedance inputs should be pulled high or low
externally to avoid switching currents caused by floating
inputs. The T0CKI input should also be at VDD or VSS for
lowest current consumption. The contribution from
on-chip pull-ups on GPIO should be considered.
The MCLR pin must be at a logic high level.
12.7.1
WAKE-UP FROM SLEEP
The device can wake-up from Sleep through one of the
following events:
1.
External Reset input on MCLR pin.
2.
Watchdog
Timer
wake-up
(if
WDT
was
enabled).
3.
Interrupt from GP2/INT pin, GPIO change or a
peripheral interrupt.
The first event will cause a device Reset. The two latter
events are considered a continuation of program
execution. The TO and PD bits in the STATUS register
can be used to determine the cause of a device Reset.
The PD bit, which is set on power-up, is cleared when
Sleep is invoked. TO bit is cleared if WDT wake-up
occurred.
The following peripheral interrupts can wake the device
from Sleep:
1.
Timer1 interrupt. Timer1 must be operating as
an asynchronous counter.
2.
ECCP Capture mode interrupt.
3.
A/D conversion (when A/D clock source is FRC).
4.
EEPROM write operation completion.
5.
Comparator output changes state.
6.
Interrupt-on-change.
7.
External Interrupt from INT pin.
Other peripherals cannot generate interrupts since
during Sleep, no on-chip clocks are present.
When the SLEEP instruction is being executed, the next
instruction (PC + 1) is prefetched. For the device to
wake-up through an interrupt event, the corresponding
interrupt enable bit must be set (enabled). Wake-up
occurs regardless of the state of the GIE bit. If the GIE
bit is clear (disabled), the device continues execution at
the instruction after the SLEEP instruction. If the GIE bit
is set (enabled), the device executes the instruction
after the SLEEP instruction, then branches to the inter-
rupt address (0004h). In cases where the execution of
the instruction following SLEEP is not desirable, the
user should have a NOP after the SLEEP instruction.
The WDT is cleared when the device wakes up from
Sleep, regardless of the source of wake-up.
12.7.2
WAKE-UP USING INTERRUPTS
When global interrupts are disabled (GIE cleared) and
any interrupt source has both its interrupt enable bit
and interrupt flag bit set, one of the following will occur:
If the interrupt occurs before the execution of a
SLEEP
instruction, the SLEEP instruction will
complete as a NOP. Therefore, the WDT and WDT
prescaler and postscaler (if enabled) will not be
cleared, the TO bit will not be set and the PD bit
will not be cleared.
If the interrupt occurs during or after the
execution of a SLEEP instruction, the device will
Immediately wake-up from Sleep. The SLEEP
instruction is executed. Therefore, the WDT and
WDT prescaler and postscaler (if enabled) will be
cleared, the TO bit will be set and the PD bit will
be cleared.
Even if the flag bits were checked before executing a
SLEEP
instruction, it may be possible for flag bits to
become set before the SLEEP instruction completes. To
determine whether a SLEEP instruction executed, test
the PD bit. If the PD bit is set, the SLEEP instruction
was executed as a NOP.
To ensure that the WDT is cleared, a CLRWDT instruction
should be executed before a SLEEP instruction. See
Figure 12-10 for more details.
Note:
It should be noted that a Reset generated
by a WDT time-out does not drive MCLR
pin low.
Note:
If the global interrupts are disabled (GIE is
cleared) and any interrupt source has both
its interrupt enable bit and the correspond-
ing interrupt flag bits set, the device will
immediately wake-up from Sleep.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC12F683T-E/MD | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology |
| PIC12F683T-E/MDQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology |
| PIC12F683T-E/MF | 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 6 I/O 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 |
| PIC12F683T-E/MFQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology |
| PIC12F683T-E/P | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology |
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