參數(shù)資料
型號(hào): PIC16LC782T-I/SO
廠商: Microchip Technology
文件頁(yè)數(shù): 23/186頁(yè)
文件大?。?/td> 0K
描述: IC MCU OTP 2KX14 A/D D/A 20SOIC
標(biāo)準(zhǔn)包裝: 1,600
系列: PIC® 16C
核心處理器: PIC
芯體尺寸: 8-位
速度: 20MHz
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 13
程序存儲(chǔ)器容量: 3.5KB(2K x 14)
程序存儲(chǔ)器類型: OTP
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x8b; D/A 1x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
包裝: 帶卷 (TR)
其它名稱: PIC16LC782TI/SO
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2001 Microchip Technology Inc.
Preliminary
DS41171A-page 117
PIC16C781/782
14.0
SPECIAL FEATURES OF THE
CPU
These devices have a host of features intended to max-
imize system reliability, minimize cost through elimina-
tion of external components, provide power saving
operating modes and offer code protection. These fea-
tures include:
Oscillator selection
RESET
- Power-on Reset (POR)
- Power-up Timer (PWRT)
- Oscillator Start-up Timer (OST)
- Programmable Brown-out Reset (PBOR)
Interrupts
Watchdog Timer (WDT)
Programmable Low Voltage Detection (PLVD)
SLEEP
Code protection
ID locations
In-Circuit Serial ProgrammingTM (ICSPTM)
Several oscillator options are available to allow the part
to fit the application. The INTRC oscillator options save
system cost while the LP crystal option saves power. A
set of configuration bits is used to select various
options.
The CPU also features a Watchdog Timer (WDT),
which can be enabled either through a configuration bit
during programming, or by the software. For added reli-
ability, the WDT runs off its own internal RC oscillator
instead of the main CPU clock.
In addition to the WDT, the CPU incorporates both an
Oscillator Start-up Timer and a Power-up Timer. The
Oscillator Start-up Timer (OST) is intended to hold the
chip in RESET until the crystal oscillator has stabilized.
The Power-up Timer (PWRT) holds the CPU in a fixed
RESET delay of 72ms (nominal) on Power-up Resets
(POR and PBOR), while the power supply stabilizes.
With these two timers on-chip, most applications need
no external RESET circuitry.
SLEEP mode is designed to offer a very low current
power-down mode. The user can awaken from SLEEP
through:
External RESET
Watchdog Timer Wake-up
Interrupt
Additional information on special features is available
in the PICmicro Mid-Range Reference Manual,
(DS33023).
14.1
Configuration Bits
The configuration bits can be programmed (read as '0'),
or left unprogrammed (read as '1'), to select various
device configurations. These bits are mapped in pro-
gram memory location 2007h.
Some of the core features provided may not be neces-
sary for each application in which a device may be
used. The configuration word bits allow these features
to
be
configured/enabled/disabled
as
necessary.
These features include:
Code Protection
PBOR Trip Point
Power-up Timer
Watchdog Timer
Device Oscillator Mode
As can be seen in Table 14-1, some additional configu-
ration word bits have been provided for Brown-out
Reset trip point selection.
Note:
Address 2007h is beyond the user pro-
gram memory
space, which can be
accessed only during programming.
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