- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45050 > M44C090-XXX-DIT (TEMIC SEMICONDUCTORS) 4-BIT, MROM, 4 MHz, MICROCONTROLLER, UUC PDF資料下載
參數(shù)資料
| 型號： | M44C090-XXX-DIT |
| 廠商： | TEMIC SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 4 MHz, MICROCONTROLLER, UUC |
| 封裝： | CHIP |
| 文件頁數(shù)： | 251/319頁 |
| 文件大?。?/td> | 11009K |
| 代理商： | M44C090-XXX-DIT |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁第192頁第193頁第194頁第195頁第196頁第197頁第198頁第199頁第200頁第201頁第202頁第203頁第204頁第205頁第206頁第207頁第208頁第209頁第210頁第211頁第212頁第213頁第214頁第215頁第216頁第217頁第218頁第219頁第220頁第221頁第222頁第223頁第224頁第225頁第226頁第227頁第228頁第229頁第230頁第231頁第232頁第233頁第234頁第235頁第236頁第237頁第238頁第239頁第240頁第241頁第242頁第243頁第244頁第245頁第246頁第247頁第248頁第249頁第250頁當(dāng)前第251頁第252頁第253頁第254頁第255頁第256頁第257頁第258頁第259頁第260頁第261頁第262頁第263頁第264頁第265頁第266頁第267頁第268頁第269頁第270頁第271頁第272頁第273頁第274頁第275頁第276頁第277頁第278頁第279頁第280頁第281頁第282頁第283頁第284頁第285頁第286頁第287頁第288頁第289頁第290頁第291頁第292頁第293頁第294頁第295頁第296頁第297頁第298頁第299頁第300頁第301頁第302頁第303頁第304頁第305頁第306頁第307頁第308頁第309頁第310頁第311頁第312頁第313頁第314頁第315頁第316頁第317頁第318頁第319頁
37
Atmel ATmega16/32/64/M1/C1 [DATASHEET]
7647K–AVR–12/13
6.7
Minimizing Power Consumption
There are several issues to consider when trying to minimize the power consumption in an AVR controlled system. In general,
sleep modes should be used as much as possible, and the sleep mode should be selected so that as few as possible of the
device’s functions are operating. All functions not needed should be disabled. In particular, the following modules may need
special consideration when trying to achieve the lowest possible power consumption.
6.7.1
Analog to Digital Converter
If enabled, the ADC will be enabled in all sleep modes. To save power, the ADC should be disabled before entering any sleep
mode. When the ADC is turned off and on again, the next conversion will be an extended conversion. Refer to Section 18.
“Analog to Digital Converter - ADC” on page 197 for details on ADC operation.
6.7.2
Analog Comparator
When entering Idle mode, the analog comparator should be disabled if not used. When entering ADC noise reduction mode, the
analog comparator should be disabled. In other sleep modes, the analog comparator is automatically disabled. However, if the
analog comparator is set up to use the internal voltage reference as input, the analog comparator should be disabled in all sleep
modes. Otherwise, the internal voltage reference will be enabled, independent of sleep mode. Refer to Section 20. “Analog
Comparator” on page 225 for details on how to configure the analog comparator.
6.7.3
Brown-out Detector
If the brown-out detector is not needed by the application, this module should be turned off. If the brown-out detector is enabled
by the BODLEVEL fuses, it will be enabled in all sleep modes, and hence, always consume power. In the deeper sleep modes,
this will contribute significantly to the total current consumption. Refer to Section 7.2.3 “Brown-out Detection” on page 40 for
details on how to configure the brown-out detector.
6.7.4
Internal Voltage Reference
The internal voltage reference will be enabled when needed by the brown-out detection, the analog comparator or the ADC. If
these modules are disabled as described in the sections above, the internal voltage reference will be disabled and it will not be
consuming power. When turned on again, the user must allow the reference to start up before the output is used. If the
reference is kept on in sleep mode, the output can be used immediately. Refer to Section 7.3 “Internal Voltage Reference” on
page 42 for details on the start-up time.
6.7.5
Watchdog Timer
If the watchdog timer is not needed in the application, the module should be turned off. If the watchdog timer is enabled, it will
be enabled in all sleep modes, and hence, always consume power. In the deeper sleep modes, this will contribute significantly
to the total current consumption. Refer to Section 7.4 “Watchdog Timer” on page 43 for details on how to configure the
watchdog timer.
6.7.6
Port Pins
When entering a sleep mode, all port pins should be configured to use minimum power. The most important is then to ensure
that no pins drive resistive loads. In sleep modes where both the I/O clock (clkI/O) and the ADC clock (clkADC) are stopped, the
input buffers of the device will be disabled. This ensures that no power is consumed by the input logic when not needed. In
some cases, the input logic is needed for detecting wake-up conditions, and it will then be enabled. Refer to the section
Section 9. “I/O-Ports” on page 51 for details on which pins are enabled. If the input buffer is enabled and the input signal is left
floating or have an analog signal level close to VCC/2, the input buffer will use excessive power.
For analog input pins, the digital input buffer should be disabled at all times. An analog signal level close to VCC/2 on an input
pin can cause significant current even in active mode. Digital input buffers can be disabled by writing to the digital input disable
registers (DIDR1 and DIDR0). Refer to “Digital Input Disable Register 1– DIDR1” and “Digital Input Disable Register 0 – DIDR0”
6.7.7
On-chip Debug System
If the on-chip debug system is enabled by OCDEN Fuse and the chip enter sleep mode, the main clock source is enabled, and
hence, always consumes power. In the deeper sleep modes, this will contribute significantly to the total current consumption.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M48ST59W-70MH1TR | 0 TIMER(S), REAL TIME CLOCK, PDSO44 |
| M48ST59W-100MH1 | 0 TIMER(S), REAL TIME CLOCK, PDSO44 |
| M48T02-150PC1 | 0 TIMER(S), REAL TIME CLOCK, PDIP24 |
| M48T18-100MH1TR | 0 TIMER(S), REAL TIME CLOCK, PDSO28 |
| M48T18-100MH1 | 0 TIMER(S), REAL TIME CLOCK, PDSO28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M44C890 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Low-Current Microcontroller for Wireless Communication |
| M44C890-H | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Low-Current Microcontroller for Wireless Communication |
| M44S05K4F1 | 功能描述:汽車連接器 MX44 Terminals RoHS:否 制造商:Amphenol SINE Systems 產(chǎn)品:Contacts 系列:ATP 位置數(shù)量: 型式:Female 安裝風(fēng)格: 端接類型: 觸點電鍍:Nickel |
| M44T332538880MHZ | 制造商:MEC 功能描述: |
| M44T3338880MHZ | 制造商:MEC 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。