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参数资料
型号： PIC12F683-E/MD
厂商： Microchip Technology
文件页数： 97/176页
文件大小： 0K
描述： IC PIC MCU FLASH 2KX14 8DFN
产品培训模块： Asynchronous Stimulus
Digi-Key 应用说明： AN0005 PWM Example with Microchip's CCP Module
AN0005 Example Code
标准包装： 91
系列： PIC® 12F
核心处理器： PIC
芯体尺寸： 8-位
速度： 20MHz
外围设备： 欠压检测/复位，POR，PWM，WDT
输入/输出数： 5
程序存储器容量： 3.5KB（2K x 14）
程序存储器类型： 闪存
EEPROM 大小： 256 x 8
RAM 容量： 128 x 8
电压 - 电源 (Vcc/Vdd)： 2 V ~ 5.5 V
数据转换器： A/D 4x10b
振荡器型： 内部
工作温度： -40°C ~ 125°C
封装/外壳： 8-VDFN 裸露焊盘
包装： 管件
配用： AC164326-ND - MODULA SKT PM3 20QFN
I3-DB12F683-ND - BOARD DAUGHTER ICEPIC3
2007 Microchip Technology Inc.
DS41211D-page 25
PIC12F683
3.5.3
LFINTOSC
The Low-Frequency Internal Oscillator (LFINTOSC) is
an uncalibrated 31 kHz internal clock source.
The output of the LFINTOSC connects to a postscaler
and multiplexer (see Figure 3-1). Select 31 kHz, via
software, using the IRCF<2:0> bits of the OSCCON
register. See Section 3.5.4 “Frequency Select Bits
(IRCF)” for more information. The LFINTOSC is also the
frequency for the Power-up Timer (PWRT), Watchdog
Timer (WDT) and Fail-Safe Clock Monitor (FSCM).
The LFINTOSC is enabled by selecting 31 kHz
(IRCF<2:0> bits of the OSCCON register = 000) as the
system clock source (SCS bit of the OSCCON
register = 1), or when any of the following are enabled:
Two-Speed Start-up IESO bit of the Configuration
Word register = 1 and IRCF<2:0> bits of the
OSCCON register = 000
Power-up Timer (PWRT)
Watchdog Timer (WDT)
Fail-Safe Clock Monitor (FSCM)
The LF Internal Oscillator (LTS) bit of the OSCCON
register indicates whether the LFINTOSC is stable or
not.
3.5.4
FREQUENCY SELECT BITS (IRCF)
The output of the 8 MHz HFINTOSC and 31 kHz
LFINTOSC connects to a postscaler and multiplexer
(see Figure 3-1). The Internal Oscillator Frequency
Select bits IRCF<2:0> of the OSCCON register select
the frequency output of the internal oscillators. One of
eight frequencies can be selected via software:
8 MHz
4 MHz (Default after Reset)
2 MHz
1 MHz
500 kHz
250 kHz
125 kHz
31 kHz (LFINTOSC)
3.5.5
HF AND LF INTOSC CLOCK
SWITCH TIMING
When switching between the LFINTOSC and the
HFINTOSC, the new oscillator may already be shut
down to save power (see Figure 3-6). If this is the case,
there is a delay after the IRCF<2:0> bits of the
OSCCON register are modified before the frequency
selection takes place. The LTS and HTS bits of the
OSCCON register will reflect the current active status
of the LFINTOSC and HFINTOSC oscillators. The
timing of a frequency selection is as follows:
1.
IRCF<2:0> bits of the OSCCON register are
modified.
2.
If the new clock is shut down, a clock start-up
delay is started.
3.
Clock switch circuitry waits for a falling edge of
the current clock.
4.
CLKOUT is held low and the clock switch
circuitry waits for a rising edge in the new clock.
5.
CLKOUT is now connected with the new clock.
LTS and HTS bits of the OSCCON register are
updated as required.
6.
Clock switch is complete.
See Figure 3-1 for more details.
If the internal oscillator speed selected is between
8 MHz and 125 kHz, there is no start-up delay before
the new frequency is selected. This is because the old
and new frequencies are derived from the HFINTOSC
via the postscaler and multiplexer.
Start-up delay specifications are located in the
Electrical Specifications Chapter of this data sheet,
under AC Specifications (Oscillator Module).
Note:
Following any Reset, the IRCF<2:0> bits of
the OSCCON register are set to ‘110’ and
the frequency selection is set to 4 MHz.
The user can modify the IRCF bits to
select a different frequency.
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PIC12F683-I/MD 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 6I/O RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC12F683-I/MDQTP 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology
PIC12F683-I/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 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC12F683-I/MF 制造商:Microchip Technology Inc 功能描述:8BIT FLASH MCU SMD 12F683 DFN-8
PIC12F683-I/MFQTP 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:8-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology
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