參數(shù)資料
型號: TS87C51RD2-MIL
廠商: Atmel
文件頁數(shù): 78/84頁
文件大?。?/td> 0K
描述: IC MCU 8051 OTP 64K 5V 68PLCC
標準包裝: 19
系列: 87C
核心處理器: 8051
芯體尺寸: 8-位
速度: 40/20MHz
連通性: UART/USART
外圍設備: POR,PWM,WDT
輸入/輸出數(shù): 48
程序存儲器容量: 64KB(64K x 8)
程序存儲器類型: OTP
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 68-PLCC
包裝: 管件
2007-2012 Microchip Technology Inc.
DS70292G-page 81
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
6.3
System Reset
The dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/
X04, and dsPIC33FJ128GPX02/X04 family of devices
have two types of Reset:
Cold Reset
Warm Reset
A cold Reset is the result of a Power-on Reset (POR)
or a Brown-out Reset (BOR). On a cold Reset, the
FNOSC configuration bits in the FOSC device
configuration register selects the device clock source.
A warm Reset is the result of all other reset sources,
including the RESET instruction. On warm Reset, the
device will continue to operate from the current clock
source as indicated by the Current Oscillator Selection
bits (COSC<2:0>) in the Oscillator Control register
(OSCCON<14:12>).
The device is kept in a Reset state until the system
power supplies have stabilized at appropriate levels
and the oscillator clock is ready. The sequence in
which this occurs is shown in Figure 6-2.
TABLE 6-1:
OSCILLATOR DELAY
Oscillator Mode
Oscillator
Startup Delay
Oscillator Startup
Timer
PLL Lock Time
Total Delay
FRC, FRCDIV16,
FRCDIVN
TOSCD
——
TOSCD
FRCPLL
TOSCD
—TLOCK
TOSCD + TLOCK
XT
TOSCD
TOST
—TOSCD + TOST
HS
TOSCD
TOST
—TOSCD + TOST
EC
——
XTPLL
TOSCD
TOST
TLOCK
TOSCD + TOST + TLOCK
HSPLL
TOSCD
TOST
TLOCK
TOSCD + TOST + TLOCK
ECPLL
TLOCK
SOSC
TOSCD
TOST
—TOSCD + TOST
LPRC
TOSCD
——
TOSCD
Note 1: TOSCD = Oscillator Start-up Delay (1.1
μs max for FRC, 70 μs max for LPRC). Crystal Oscillator start-up
times vary with crystal characteristics, load capacitance, etc.
2: TOST = Oscillator Start-up Timer Delay (1024 oscillator clock period). For example, TOST = 102.4
μs for a
10 MHz crystal and TOST = 32 ms for a 32 kHz crystal.
3: TLOCK = PLL lock time (1.5 ms nominal), if PLL is enabled.
相關PDF資料
PDF描述
TS87C51RD2-MCM IC MCU 8051 OTP 64K 5V 64VQFP
TS87C51RD2-MCL IC MCU 8051 OTP 64K 5V 68PLCC
AT80C31X2-3CSUL IC MCU 8031 ROMLESS 5V 40DIP
ATTINY11L-2SU IC AVR MCU 1K FLASH 2MHZ 8SOIC
AT89S8253-24PC IC 8051 MCU FLASH 12K 40DIP
相關代理商/技術參數(shù)
參數(shù)描述
TS87C51RD2-MILB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
TS87C51RD2-MILD 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
TS87C51RD2-MILR 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
TS87C51RD2-MIM 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:High Performance 8-bit Microcontroller
TS87C51RD2-MIMB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller