参数资料
型号: PIC12F683-E/MD
厂商: Microchip Technology
文件页数: 163/176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 85
PIC12F683
12.2
Calibration Bits
Brown-out Reset (BOR), Power-on Reset (POR) and
8 MHz internal oscillator (HFINTOSC) are factory cali-
brated. These calibration values are stored in fuses
located in the Calibration Word (2009h). The Calibra-
tion Word is not erased when using the specified bulk
erase sequence in the “PIC12F6XX/16F6XX Memory
Programming Specification” (DS41244) and thus, does
not require reprogramming.
12.3
Reset
The PIC12F683 differentiates between various kinds of
Reset:
a)
Power-on Reset (POR)
b)
WDT Reset during normal operation
c)
WDT Reset during Sleep
d)
MCLR Reset during normal operation
e)
MCLR Reset during Sleep
f)
Brown-out Reset (BOR)
Some registers are not affected in any Reset condition;
their status is unknown on POR and unchanged in any
other Reset. Most other registers are reset to a “Reset
state” on:
Power-on Reset
MCLR Reset
MCLR Reset during Sleep
WDT Reset
Brown-out Reset (BOR)
WDT wake-up does not cause register resets in the
same manner as a WDT Reset since wake-up is
viewed as the resumption of normal operation. TO and
PD bits are set or cleared differently in different Reset
situations, as indicated in Table 12-2. Software can use
these bits to determine the nature of the Reset. See
Table 12-4 for a full description of Reset states of all
registers.
A simplified block diagram of the On-Chip Reset Circuit
is shown in Figure 12-1.
The MCLR Reset path has a noise filter to detect and
ignore small pulses. See Section 15.0 “Electrical
Specifications” for pulse-width specifications.
FIGURE 12-1:
SIMPLIFIED BLOCK DIAGRAM OF ON-CHIP RESET CIRCUIT
Note 1:
Refer to the Configuration Word register (Register 12-1).
S
R
Q
External
Reset
MCLR/VPP pin
VDD
OSC1/
WDT
Module
VDD Rise
Detect
OST/PWRT
LFINTOSC
WDT
Time-out
Power-on Reset
OST
10-bit Ripple Counter
PWRT
Chip_Reset
11-bit Ripple Counter
Reset
Enable OST
Enable PWRT
SLEEP
Brown-out(1)
Reset
SBOREN
BOREN
CLKI pin
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