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參數(shù)資料
| 型號： | PIC12F506 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 8/14-Pin, 8-Bit Flash Microcontroller |
| 中文描述： | 8/14-Pin，8位閃存微控制器 |
| 文件頁數(shù)： | 57/116頁 |
| 文件大?。?/td> | 907K |
| 代理商： | PIC12F506 |
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2007 Microchip Technology Inc.
Preliminary
DS41268C-page 55
PIC12F510/16F506
10.0
SPECIAL FEATURES OF THE
CPU
What sets a microcontroller apart from other proces-
sors are special circuits that deal with the needs of real-
time
applications.
The
microcontrollers have a host of such features intended
to maximize system reliability, minimize cost through
elimination of external components, provide power-
saving operating modes and offer code protection.
These features are:
Oscillator Selection
Reset:
- Power-on Reset (POR)
- Device Reset Timer (DRT)
- Wake-up from Sleep on Pin Change
Watchdog Timer (WDT)
Sleep
Code Protection
ID Locations
In-Circuit Serial Programming (ICSP)
Clock Out
The PIC12F510/16F506 devices have a Watchdog
Timer, which can be shut off only through Configuration
bit WDTE. It runs off of its own RC oscillator for added
reliability. If using HS (PIC16F506), XT or LP selectable
oscillator options, there is always a delay, provided by
the Device Reset Timer (DRT), intended to keep the
chip in Reset until the crystal oscillator is stable. If using
INTOSC, EXTRC or EC there is an 1.125 ms (nominal)
delay only on V
DD
power-up. With this timer on-chip,
most applications need no external Reset circuitry.
The Sleep mode is designed to offer a very low-current
Power-Down mode. The user can wake-up from Sleep
through a change-on-input pin or through a Watchdog
Timer time-out. Several oscillator options are also
made available to allow the part to fit the application,
including an internal 4/8 MHz oscillator. The EXTRC
oscillator option saves system cost while the LP crystal
option saves power. A set of Configuration bits are
used to select various options.
PIC12F510/16F506
10.1
Configuration Bits
The PIC12F510/16F506 Configuration Words consist
of 12 bits. Configuration bits can be programmed to
select various device configurations. Three bits are for
the selection of the oscillator type; (two bits on the
PIC12F510), one bit is the Watchdog Timer enable bit,
one bit is the MCLR enable bit and one bit is for code
protection (Register 10-1, Register 10-2).
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