- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄25642 > MR83C154XXX-12/883 (ATMEL CORP) 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQCC44 PDF資料下載
參數(shù)資料
| 型號： | MR83C154XXX-12/883 |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQCC44 |
| 封裝： | LCC-44 |
| 文件頁數(shù)： | 17/91頁 |
| 文件大小： | 19688K |
| 代理商： | MR83C154XXX-12/883 |
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頁當前第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
29
7707F–AVR–11/10
AT90USB82/162
6.2.5
Clock Status Register – CLKSTA
Bit 7-2 - Reserved bits
These bits are reserved and will always read as zero.
Bit 1 – RCON: RC Oscillator On
This bit is set by hardware to one if the RC Oscillator is running.
This bit is set by hardware to zero if the RC Oscillator is stoped.
Bit 0 – EXTON: External Oscillator / Low Power Oscillator On
This bit is set by hardware to one if the External Oscillator / Low Power Oscillator is running.
This bit is set by hardware to zero if the External Oscillator / Low Power Oscillator is stoped.
6.3
Clock Sources
The device has the following clock source options, selectable by Flash Fuse bits as shown
below. The clock from the selected source is input to the AVR clock generator, and routed to the
appropriate modules.
Note:
1. For all fuses “1” means unprogrammed while “0” means programmed.
6.3.1
Default Clock Source
The device is shipped with low power crystal oscillator and with the fuse CKDIV8 programmed.
The startup time is set to maximum and time-out period enabled. (CKSEL = "1110", SUT = "01",
CKDIV8 = "0").
6.3.2
Clock Startup Sequence
Any clock source needs a sufficient V
CC to start oscillating and a minimum number of oscillating
cycles before it can be considered stable.
To ensure sufficient V
CC, the device issues an internal reset with a time-out delay (tTOUT) after
the device reset is released by all other reset sources. “On-chip Debug System” on page 45
describes the start conditions for the internal reset. The delay (t
TOUT) is timed from the Watchdog
Oscillator and the number of cycles in the delay is set by the SUTx and CKSELx fuse bits. The
selectable delays are shown in Table 6-2. The frequency of the Watchdog Oscillator is voltage
Bit
7
6
543
2
1
0
-
RCON
EXTON
CLKSTA
Read/Write
R
Initial Value
0
See Bit Description
Table 6-1.
Device Clocking Options Select
Device Clocking Option
CKSEL3..0
Low Power Crystal Oscillator
1111 - 1000
Reserved
0111 - 0110
Reserved
0101 - 0100
Reserved
0011
Calibrated Internal RC Oscillator
0010
External Clock
0000
Reserved
0001
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MD83C154CXXX-L16P883D | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CDIP40 |
| MC80C52TXXX-12P883D | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CDIP40 |
| MQ80C52TXXX-36P883 | 8-BIT, MROM, 36 MHz, MICROCONTROLLER, CQFP44 |
| MQ83C154TXXX-L16/883D | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44 |
| MQ80C154-36P883 | 8-BIT, 36 MHz, MICROCONTROLLER, CQFP44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MR850 | 功能描述:整流器 3.0 Amp 50 Volt 150ns RoHS:否 制造商:Vishay Semiconductors 產(chǎn)品:Standard Recovery Rectifiers 配置: 反向電壓:100 V 正向電壓下降: 恢復時間:1.2 us 正向連續(xù)電流:2 A 最大浪涌電流:35 A 反向電流 IR:5 uA 安裝風格:SMD/SMT 封裝 / 箱體:DO-221AC 封裝:Reel |
| MR850 _AY _10001 | 制造商:PanJit Touch Screens 功能描述: |
| MR850 R0 | 制造商:SKMI/Taiwan 功能描述:Diode Switching 50V 3A 2-Pin DO-201AD T/R |
| MR850_ R2 _10001 | 制造商:PanJit Touch Screens 功能描述: |
| MR850_09 | 制造商:PANJIT 制造商全稱:Pan Jit International Inc. 功能描述:SOFT RECOVERY, FAST SWITCHING PLASTIC RECTIFIER |
發(fā)布緊急采購，3分鐘左右您將得到回復。