參數(shù)資料
型號： AT89C5115-RATUM
廠商： Atmel
文件頁數(shù)： 17/113頁
文件大?。?/td> 0K
描述： IC 8051 MCU FLASH 16K 32VQFP
產(chǎn)品培訓(xùn)模塊： MCU Product Line Introduction
標準包裝： 1,250
系列： 89C
核心處理器： 8051
芯體尺寸： 8-位
速度： 40MHz
連通性： UART/USART
外圍設(shè)備： POR，PWM，WDT
輸入/輸出數(shù)： 20
程序存儲器容量： 16KB（16K x 8）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 2K x 8
RAM 容量： 512 x 8
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x10b
振蕩器型： 外部
工作溫度： -40°C ~ 85°C
封裝/外殼： 32-LQFP
包裝： 托盤
配用： AT89OCD-01-ND - USB EMULATOR FOR AT8XC51 MCU
2007-2011 Microchip Technology Inc.
DS70265E-page 113
dsPIC33FJ12MC201/202
9.0
POWER-SAVING FEATURES
The dsPIC33FJ12MC201/202 devices provide the
ability to manage power consumption by selectively
managing clocking to the CPU and the peripherals. In
general, a lower clock frequency and a reduction in the
number of circuits being clocked constitutes lower
consumed power. dsPIC33FJ12MC201/202 devices
can manage power consumption in four different ways:
Clock frequency
Instruction-based Sleep and Idle modes
Software-controlled Doze mode
Selective peripheral control in software
Combinations of these methods can be used to selec-
tively tailor an application’s power consumption while
still maintaining critical application features, such as
timing-sensitive communications.
9.1
Clock Frequency and Clock
Switching
dsPIC33FJ12MC201/202 devices allow a wide range
of clock frequencies to be selected under application
control. If the system clock configuration is not locked,
users can choose low-power or high-precision
oscillators by simply changing the NOSC bits
(OSCCON<10:8>). The process of changing a system
clock during operation, as well as limitations to the
process, are discussed in more detail in Section 8.0
.
9.2
Instruction-Based Power-Saving
Modes
dsPIC33FJ12MC201/202 devices have two special
power-saving modes that are entered through the
execution of a special PWRSAV instruction. Sleep mode
stops clock operation and halts all code execution. Idle
mode halts the CPU and code execution, but allows
peripheral modules to continue operation. The
assembler syntax of the PWRSAV instruction is shown in
Sleep and Idle modes can be exited as a result of an
enabled interrupt, WDT time-out or a device Reset. When
the device exits these modes, it is said to wake-up.
9.2.1
SLEEP MODE
The following occur in Sleep mode:
The system clock source is shut down. If an
on-chip oscillator is used, it is turned off.
The device current consumption is reduced to a
minimum, provided that no I/O pin is sourcing
current
The Fail-Safe Clock Monitor does not operate,
since the system clock source is disabled
The LPRC clock continues to run in Sleep mode if
the WDT is enabled
The WDT, if enabled, is automatically cleared
prior to entering Sleep mode
Some device features or peripherals may continue
to operate. This includes items such as the input
change notification on the I/O ports, or peripherals
that use an external clock input.
Any peripheral that requires the system clock
source for its operation is disabled
The device will wake-up from Sleep mode on any of the
these events:
Any interrupt source that is individually enabled
Any form of device Reset
A WDT time-out
On wake-up from Sleep mode, the processor restarts
with the same clock source that was active when Sleep
mode was entered.
EXAMPLE 9-1:
PWRSAV
INSTRUCTION SYNTAX
Note 1:
This data sheet summarizes the features
of the dsPIC33FJ12MC201/202 family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 9. “Watchdog
Timer
and
Power-Saving
Modes”
(DS70196) of the “dsPIC33F/PIC24H
Family Reference Manual”
, which is
(www.microchip.com).
2:
Some registers and associated bits
described in this section may not be
available on all devices. Refer to
in
this data sheet for device-specific register
and bit information.
Note:
SLEEP_MODE
and
IDLE_MODE
are
constants defined in the assembler
include file for the selected device.
PWRSAV
#SLEEP_MODE
; Put the device into Sleep mode
PWRSAV
#IDLE_MODE
; Put the device into Idle mode
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AT89C5115-SISUM 功能描述:8位微控制器 -MCU C51 16K Flash ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT89C5115-TISUM 功能描述:8位微控制器 -MCU 16K Flash ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT89C51-16AA 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K Bytes Flash
AT89C51-16AC 功能描述:8位微控制器 -MCU Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
AT89C51-16AI 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 4K Bytes Flash
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