- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄3895 > PIC12F1501-I/MF (Microchip Technology)IC MCU 8BIT 1.75KB FLASH 8-DFN PDF資料下載
參數(shù)資料
| 型號： | PIC12F1501-I/MF |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 25/33頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 8BIT 1.75KB FLASH 8-DFN |
| 標準包裝： | 120 |
| 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/復位，POR，PWM，WDT |
| 輸入/輸出數(shù)： | 5 |
| 程序存儲器容量： | 1.75KB（1K x 14） |
| 程序存儲器類型： | 閃存 |
| RAM 容量： | 64 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.3 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-VDFN 裸露焊盤 |
| 包裝： | 管件 |
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頁當前第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
PIC18F1220/1320
DS39605F-page 30
2007 Microchip Technology Inc.
3.5.2
EXIT BY RESET
Normally, the device is held in Reset by the Oscillator
Start-up Timer (OST) until the primary clock (defined in
Configuration Register 1H) becomes ready. At that
time, the OSTS bit is set and the device begins
executing code.
Code execution can begin before the primary clock
becomes ready. If either the Two-Speed Start-up (see
Section 19.3 “Two-Speed Start-up”) or Fail-Safe
Clock Monitor (see Section 19.4 “Fail-Safe Clock
Monitor”) are enabled in Configuration Register 1H,
the device may begin execution as soon as the Reset
source has cleared. Execution is clocked by the
INTOSC multiplexer driven by the internal oscillator
block. Since the OSCCON register is cleared following
all Resets, the INTRC clock source is selected. A
higher speed clock may be selected by modifying the
IRCF bits in the OSCCON register. Execution is
clocked by the internal oscillator block until either the
primary clock becomes ready, or a power managed
mode is entered before the primary clock becomes
ready; the primary clock is then shut down.
3.5.3
EXIT BY WDT TIME-OUT
A WDT time-out will cause different actions, depending
on which power managed mode the device is in when
the time-out occurs.
If the device is not executing code (all Idle modes and
Sleep mode), the time-out will result in a wake from the
If the device is executing code (all Run modes), the
time-out will result in a WDT Reset (see Section 19.2
The WDT timer and postscaler are cleared by
executing a SLEEP or CLRWDT instruction, the loss of a
currently selected clock source (if the Fail-Safe Clock
Monitor is enabled) and modifying the IRCF bits in the
OSCCON register if the internal oscillator block is the
system clock source.
3.5.4
EXIT WITHOUT AN OSCILLATOR
START-UP DELAY
Certain exits from power managed modes do not
invoke the OST at all. These are:
PRI_IDLE mode, where the primary clock source
is not stopped; or
the primary clock source is not any of LP, XT, HS
or HSPLL modes.
In these cases, the primary clock source either does
not require an oscillator start-up delay, since it is
already running (PRI_IDLE), or normally does not
require an oscillator start-up delay (RC, EC and INTIO
Oscillator modes).
However, a fixed delay (approximately 10
μs) following
the wake event is required when leaving Sleep and Idle
modes. This delay is required for the CPU to prepare
for execution. Instruction execution resumes on the first
clock cycle following this delay.
3.6
INTOSC Frequency Drift
The factory calibrates the internal oscillator block
output (INTOSC) for 8 MHz (see Table 22-6). However,
this frequency may drift as VDD or temperature
changes, which can affect the controller operation in a
variety of ways.
It is possible to adjust the INTOSC frequency by
modifying
the
value
in
the
OSCTUNE
register
(Register 2-1). This has the side effect that the INTRC
clock source frequency is also affected. However, the
features that use the INTRC source often do not require
an exact frequency. These features include the Fail-Safe
Clock Monitor, the Watchdog Timer and the RC_RUN/
RC_IDLE modes when the INTRC clock source is
selected.
Being able to adjust the INTOSC requires knowing
when an adjustment is required, in which direction it
should be made and in some cases, how large a
change is needed. Three examples follow but other
techniques may be used.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PIC12F510-I/MC | IC PIC MCU FLASH 1024X12 8DFN |
| PIC12F629T-I/MF | IC MCU CMOS 8BIT 1K FLASH 8-DFN |
| PIC12LF1501-E/MS | IC MCU 8BIT 1.75KB FLASH 8MSOP |
| PIC16F57-I/SS | IC MCU FLASH 2KX12 28SSOP |
| PIC12F510-I/MS | IC PIC MCU FLASH 1.5KB 8MSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PIC12F1501-I-MG | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:14-Pin Flash, 8-Bit Microcontrollers |
| PIC12F1501T-EMCQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin Flash, 8-Bit Microcontrollers |
| PIC12F1501T-EMCSQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin Flash, 8-Bit Microcontrollers |
| PIC12F1501T-EMFQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin Flash, 8-Bit Microcontrollers |
| PIC12F1501T-EMFSQTP | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8-Pin Flash, 8-Bit Microcontrollers |
發(fā)布緊急采購，3分鐘左右您將得到回復。